Home

Artisan Technology Group is your source for quality new and

1. UnitsX 0 UnitsY 0 ITUspace 100 CITUListType 1 CITUStartWavelength 0 000 CITUStopWavelength 0 000 CITUListSize 0 lt CITUListBegin gt lt CITUListEnd gt Comments This is an example of an analysis definition file Date Time May 24 2000 16 05 Record Enable Ch Min Max BW CW StartWL StopwL RefP BRef Thld Mrks RefWL FtSize PBand PBtld Ftness FRange XTalk XTRange CumXTalk Comments 1 1 002 1 1 1 1541 158 1630 000 0 0 0 500 0 0 0 0 0 500 0 Bandwidth 0 0 500 0 None 2 1 003 1 1 1 1541 158 1630 000 0 0 0 500 0 0 0 0 0 500 0 Bandwidth 0 0 500 0 None 3 1 004 1 1 1 1541 158 1630 000 0 0 0 500 0 0 0 0 0 500 0 Bandwidth 0 0 500 0 None 4 1 005 1 1 1 1541 158 1630 000 0 0 0 500 0 0 0 0 0 500 0 Bandwidth 0 0 500 0 None 5 1 001 1 1 1 1541 158 1630 000 0 0 0 500 1 0 0 0 0 500 0 Bandwidth 0 0 500 0 None Operating and Maintenance Instructions 83 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ClTUStartWavelength CITUStopWavelength CITUSize lt CITUListBegin gt and lt CITUListEnd gt are parameters required for crosstalk calculation Click the Setup button for ITU channels Analysis definition files can be set up once for any number of channels and reused on any receiver without regard to channels selected The analysis is performed for only the channels that exist Basic analysis includes finding the minimum and maximum inse
2. Current Setting Port or Base IO Address Interface fo jews Parallel Parallel Port or Base 1O Address Hex Selection 0 Auto detect the first LPT w SWS Parallel Waring The SWS Parallel Interface ONLY works with OWB1 DLL version 2 0 0 or above The earlier version may damage the device connected to the parallel port or may cause the system crash Please use with caution Change Interface 1 Finish Figure 23 Selecting the Parallel Port The selected configuration is listed in the message box shown in Figure 24 SWS IO Interface Configuration Q The current setting for SW5 10 Interface as follow Interface SWS Parallel Port or Base lO Address 0 Do you wantto keep this setting Figure 24 Selecting the Interface Configuration 12 Click the Yes button to verify the selection 13 As the next step the Wizard checks if a Dual Band Selector Switch PN SWS16103 is present in the setup If the switch is properly installed into the OWB chassis and fully operational the Wizard should indicate the results of the tests as shown on a figure below Getting Started 47 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com WA 1519369 097569405 44619931 9761 84 pm mane Figure 25 Testing I O interface and a Dual Band Switch If a Dual Band Switch is present in the setup the Wizard prompts the user to specify the band info
3. GET TRACE STATUS Walt for system to be idle before triggering a trace No 18 SYSTEM lt _ Le Yes kj Send a trigger to the hardware to initiate a trace by calling triggerTrace ae GET START TIME TO PI Y DELAY 500 ms ANO GET TIME T1 No v Choose a time TC long enough F So 60 seconds for example to As 14 10 lt N ensure that ifa trace is not lt TC gt No completed in that time there must Pa be a hardware error GENERATE A Z STRACE N TIME OUT DONE ERROR N Ei MESSAGE YT Figure 99 Acquire Trace 166 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com START F i CE SELECT CHANNELS TO PROCESS ACQUIRE A TRACE Call getTraces specifying channels GET DATA SIZE All races have the same length No Allocate sufficient memory for an ALLOCATE EMO insertion loss trace and consi el wavelength data Each is an armay TRACE of double floating point numbers of the length of a trace ISSUE HARDWARE ERROR MESSGE Call gatiL Trace in the memory GET IL TRACE allocated The arrays are filled with insertion loss data in dB and corresponding wavelengts in nm No PROCESS AS DESIRED ALL REQURED N CHANNELS COMPLETED 7 Figure 100 Get Insertion Loss Programming Guide 167 Artisan Technology Gr
4. octal followed by q or Q hex followed by hor H binary followed by b or B The value xxxx following the type must be less than the decimal value 2 and must conform to the following rules for each type octal values can only contain the numeric characters 0 to 7 hex values can only contain the numeric characters 0 to 9 and the letters A to F both lowercase and uppercase are accepted binary values can only contain the numeric characters 1 and 0 For example Q12347 is a valid octal number ha57b2 is a valid hex number B010111 is a valid binary number 174 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Programming the Source Optics Module The source optics module can be programmed using IEEE 488 2 and SCPI commands Table 20 lists IEEE commands and Table 21 lists SCPI commands Table 20 IEEE 488 2 Common Commands N A N A NRf SCPI Command Tree All commands other than the IEEE 488 2 common commands are listed in Table 21 The following abbreviations are used in the Command Status column on the computer screen e SC SCPI confirmed command e SA SCPI approved command e N command is neither SCPI confirmed nor approved Table 21 SCPI SOM Commands Command Form Parameters Min Max Response STATus CONDition ENABIe OPERation table continued Programming Guide
5. rrannrnnnvnnnrnnnnrrnnnvnnnvennrnnnnrrnnnvnnnvnnnnrnnnvennnnnnnvenernnnnnennnee 47 Figure 24 Selecting the Interface Configuration xorranvvennvernrrnrn venn nvnrnvnnnrrnrn venn nnennnenrrnennvennnne 47 Figure 25 Testing I O interface and a Dual Band Switch eosnnnonrrnnnvnrnrnrrrrnnnrrnnnvnnnrnnrrrnrnvennnne 48 Figure 26 Testing the data collection procedure in C a and L b bands ranvrernrrnrrrnrnvennnre 49 Figure 27 Nominal Size Detection so escesccieccesschecstesactess aasceceusenneacesteceiennssezagstaduseaatudaccnetetestenesretacs 49 Figure 28 The SWS Testing and Setup Wizard Test complete rrrrnrnnnrrnnnvrnnnvnnnvnnrrrnnnvennnne 50 Figure 29 Starting the Wizard from the Start button sseernrerrrrnerrrrnnvnrnrnrrrrrrnvennnvnnnrnnernnrnrennnne 51 January 2001 SD000317 Rev G Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Figure 30 Source Optics Module Front Panel Model SWS15102 rurnrnrnrvnnnvvnnnvnnnvnnrrrnrnvennnne 55 Figure 31 Source Optics Module Rear Panel rrnennnnnonnvnnavnnnnennnnnnnnvnnnennnnennnnnennennavnnnnennnnnennen 55 Figure 32 Tunable Laser Source Front Panel sarrnnnvnnnnvnnnvennrnnnnrvnnnvnnnvnnrrrnnnvennnvnnnvenernnnnnennnee 55 Figure 33 Tunable Laser Source Rear Panel mrrnnanvnnnnvnnnvennrnnnnvrnnnvnnnvennrrnnnvennnvnnnvenernnnnnennne 56 Figure 34 Receiver Chassis Front Panel
6. Reference r Search Marker 1 or Marker 2 m Marker Wavelength Step points zl Y Value Find OL EENET ooon 4 1 Jx values gt Y Axis Channel Set Marker to pre calculated value j 7 EL p Markeri 4 1 CR z Threshold Max CWL 3 C Marker 4 1 CL v CR Min Nearest ITU Channel Delta IV Show Markers Figure 74 Markers Page To place the first marker 1 Select the channel 2 Select the value for the y axis that is whether the left hand or right hand y axis values are to be used 3 Select the step size in points or pm for Marker 1 4 Select the step size in points or pm for Marker 2 5 Check the box labeled Show Markers After the first marker is placed there are different ways to place other markers e Place the marker by clicking at the selected spot The marker is drawn on the plot and its coordinates in wavelength or frequency and power are displayed in the appropriate boxes e Enter the wavelength of the marker position and click the Find Y Value button the position of the marker is then computed The marker is drawn in place and the y value is entered in its edit field When both markers have been drawn the wavelength or frequency difference is computed and displayed in the box labeled Delta The difference in power is displayed in the box beside it 88 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88
7. 147 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Output double pCenLam pCenLam stores the center wavelength of the peak double pCenPow pCenPow stores the center power of the peak corresponding to the center wavelength within the specified wavelength Return Value When there is no error the function returns zero When there is an error the return value contains the error number setBand Description The setBand function sets the band for the next trace The call to this function switches the dual band selector module to collect data from the appropriate transmitter Int setBand unsigned short uhBand VB Declare Function setBand Lib SWS15100 ByVal unBand AS BOOLEAN Unsigned short uhBand let unBand 1 for Band C and 2 for L Band are valid inputs for the wavelength band Outputs Return value When there is no error the function returns zero When there is an error the function returns an error number getPassBand Description The getPassBand function computes the passband of the largest peak contained in the pPowData power array Call the function after obtaining pPowData array through a call to the getILTrace function The refpeak parameter must be specified by the caller C prototype int getPassBand double pdLamData double pdPowData unsigned short dataSize unsigned short refPeak unsigned short baseRef double interLevel unsigned sho
8. Identification Query Function Returns a string that identifies the manufacturer the source optics module model number the serial number or 0 if unavailable and the firmware level IDN returns JDS Uniphase SOM Version 1 1 0 EJ013784 3 1 4 Operation Complete Command Function Causes the source optics module to set the OPC bit in the standard event status register when all pending operations have been completed 178 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Operation Complete Query Function Places 1 in the output queue of the source optics module when all pending operations have been completed The value 1 is not always placed in the output queue immediately therefore the status byte register must be polled and the MAV bit checked to determine if there is a message available in the output queue Option Identification Query Reports on options installed or included with the source optics module OPT returns in all cases Reset Command Syntax RST Restores the source optics module to the default setting Service Request Enable Command Syntax SRE lt space gt lt numeric value gt where 0 lt lt numeric value gt lt 255 Function Sets the bits in the service request enable register The numeric value is rounded to the nearest integer and converted to a binary number The bits of the register are set to
9. Neighborhood og Accessories JDS Uniphase 2 Adobe Acrabat SICLEAR 40 Dr Solomos AYTK 3 Lots Applicators Mp once T Obs mj Sertp ESB od Cortigure SVS40 Interface 4 WinZip gt Help On OLECTRA 2D Chart ME Mcmsot Excel DP Mcrosot Nethdastna fe Sw 15100 README Mcicsat Phat Edter N SV 3T5100 Version 301 ej Mciosot PossPart I MonsorWord B m5005 Prompt Al Windows Expiorer CEFET Figure 29 Starting the Wizard from the Start button Testing the SWS Components Testing the Receiver When the SWS software installation is complete test the receiver 1 Start the SWS software When installed the program can be run from the Start menu 2 Verify that the LED on the Control Module displays CM01 3 Verify that the LEDs on the Detector Modules display C001 C002 and so on The channel number corresponds to the location of the detector module in the chassis The detector modules nearest the CM are Channel 1 and Channel 2 The upper channel in each DM is the odd numbered channel If preliminary tests fail the computer is not communicating properly with the receiver Test the parallel port of the computer by connecting the port to a printer or other parallel device or test the data acquisition board if that option is installed Getting Started 51 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Testing the Parallel Port Inte
10. A rtisan Artisan Technology Group is your source for quality TecmologyGrap new and certified used pre owned equipment FAST SHIPPING AND SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT DELIVERY Experienced engineers and technicians on staff Sell your excess underutilized and idle used equipment TENS OF THOUSANDS OF at our full service in house repair center We also offer credit for buy backs and trade ins IN STOCK ITEMS www artisantg com WeBuyEquipment 7 EQUIPMENT DEMOS HUNDREDS OF Instra 4 REMOTE INSPECTION LOOKING FOR MORE INFORMATION MANUFACTURERS Remotely inspect equipment before purchasing with Visit us on the web at www artisantg com 7 for more our interactive website at www instraview com information on price quotations drivers technical LEASING MONTHLY specifications manuals and documentation RENTALS ITAR CERTIFIED AE a Contact us 888 88 SOURCE sales artisantg com www artisantg com SWS15100 AND SWS16100 SWEPT WAVELENGTH SYSTEMS User s Manual ATTENTION For the JDS Uniphase End User License Agreement see the eleventh page of this manual Va JDS Uniphase Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com rtisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Contents Tes ee 1 ACTONYMS EEE EE EE 1 PINE NN 3 Safety Information Instructions and Symbols rvrnnnvr
11. O i FC APC Laser Source Figure 94 Power Calibration Setup 2 Use the wave meter to set the wavelength of the second laser source to 1550 nm 3 Set the power on the second laser source to 0 dBm 114 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com 10 11 12 13 14 Set the HA9 attenuator to 0 dB attenuation Using the power meter measure the power going to the channel being tested Using the SWS software set the system to insertion loss mode and polarization mode 0 Perform a zero loss measurement Increase the attenuation on the HA9 attenuator by 5 dB Using the SWS software acquire a scan Double click the left mouse button at 1550 nm to measure the insertion loss Record the HA9 attenuation and the measured insertion loss Repeat Steps 7 through Step 10 until the attenuation reaches 65 dB From the measured insertion losses compute the error at each attenuation level Verify that the measured errors fall within the limits specified for all attenuation levels See the SWS optical specifications in the Specifications section Table 5 If the errors are larger than specified perform power calibration on the channel Calibrating Power Calibrate the power scale for each receiver detector channel once a year or more often if the power measurements are suspect This procedure takes approximately 10 minut
12. 2 c cccescceeceeeeeeeeeeeeeeeeeeseneesaeeseaeeeeeetnes 57 Compact Two Channel Receiver Rear Panel ccescceeceeeeeeeeeeeeeeeeeeeeneesaeeeeaeeeneetenes 57 Control Mod le Front PatLuLu4v esjsevaerada r 57 Detector Module Front Panel urnnvnnnnnvnnnnnvnnnnnvnnnnnvnnnnnvnnnnnvnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnne 58 Dual Band Selector Switch Module Front Panel manvrannvnrnvnnvrnnnnvennnvennvennrrnrnrennnvernrernr 58 Four State Polarization Controller Front Panel rasnrrnnnvnnnvennrnnnnvrnnnvnrnvennrrnnnvennnvnnnvenr 58 Four State Polarization Controller Rear Panel rrnnnnrnnnvnnnvnnronnnvvnnnvnnnvnnrrnnnnnennnvnnnnennn 59 Setting Source Optics Module Parameters rrrnnnvnnnvnnnrrnnnvennnvnnnvnrnrrnnn venn nvnnnrnnernnsnnennnene 59 PowerUp Su Meer 59 MaimniMenUs eree a een 60 Setup Monu EN 60 Manual Menu associ asecpenennsanaiesisd2cpeceneanicicasy ote kicsanbaiclonaedadsme aabeauuspbtnhmenndasanessdecneeauiaetes 61 January 2001 D000317 Rev G Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Remote 5 EE ree renee ree terre eer errr tte ER 62 Display 22 een 63 Source Optics Module Operation ursrernrnrvrrnnn venn nvnnnvnnerrnrn venn nvnnnrnnnrrrnnvennnnernnennn 63 Using SWS Software ee satiate bass dneuaedtacteessnnaeesade spaces acarataneaceiAeenadanemmemenrentuadianceest 64 SWS Programie irisemine aaa NE EE ERE 64 SWS Us
13. Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com 5 A long wavelength is automatically displayed in the tuning range There is a prompt to enter the measured wavelength therefore reading from the meter enter the measured wavelength on the tunable laser source using the numbered keys and then press the Enter key The long wavelength is set Check the calibration by setting the tunable laser source to arbitrary wavelengths and checking the wavelength using the meter Ensure the differences between values are less than 0 2 nm 6 Disconnect the wavelength meter from the tunable laser source Reconnect the laser input to the Laser In connector on the source optics module Connect the Acetylene Gas Cell to your Receiver The acetylene cell is built into the SOM and can be accessed through the front panel Alternatively you may also use an external gas cell which could make it easier for you to do calibrations if the SWS receiver is not located close to the transmitter Connect the cell as you would a DUT Tunable Laser Source Receiver Chassis EC APC FCIPC Source Optics Module Acetylene Reference Cell Figure 83 Set up the system in this way to calibrate receiver Operating and Maintenance Instructions 101 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com
14. The second parameter threshold defines the magnitude measured with respect to the peak or the base depending on the selection of the first parameter Threshold is expressed in dB or linear units ranging between 0 and 1 See the How the SWS Calculates Values section for other examples of measuring bandwidth and center wavelength In the advanced section of the Analysis Setup dialog box the SWS program is set to evaluate the passband flatness crosstalk and cumulative crosstalk characteristics of the channel To set the SWS 1 Define whether the primary channel is determined by making the measurement with respect to the center wavelength or to the nearest channel to the center wavelength See the Selecting the ITU Grid or Specifying Channels section for more information Operating and Maintenance Instructions 85 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com 2 Select the checkboxes to turn on the analysis parameters and to fill the required user parameters The analysis parameters are Passband Passband is evaluated at the threshold which is measured in dB or linear units from the primary channel In the Threshold field enter a value ranging from 0 to 1 Flatness Flatness is measured across the top of the peak The bounds of the measured range are defined as either the passband or bandwidth Alternatively enter the numerical distance from the primary channel The
15. fi Color l Rep 000000 Hi Name Black v Count 128 can er Figure 70 Dialog Box to Modify Trace Properties Analysis Tab Page The SWS software provides flexible analysis capabilities The Analysis tab page is used to specify the ITU or other channels and the types of analyses to be performed on them The results of the analyses are presented in tabular form with each row corresponding to a physical channel on the receiver Each column is reserved for a particular parameter that is analyzed The parameters that can be calculated and presented are Center wavelength Bandwidth Passband Crosstalk Flatness Maximum and minimum peaks The parameters can be measured in specified wavelength channels either ITU or user defined For some parameters the threshold or power level at which they are calculated can be set by the user Threshold is required for bandwidth center wavelength and passband calculations The Analysis area is at the bottom left of the main window shown in Figure 71 and appears as a read only spreadsheet The software performs basic analysis on the data being viewed in the Operating and Maintenance Instructions 81 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com plot area and places the data in this location All data found in any one row is specific to one channel Each parameter value if applicable has an as
16. for each of the four polarization states are properly acquired the return 1 is 0 If there is an error the return value contains the error number acquirePDL Function Description S Purpose The acquirePDL function is used to get the IL data for all four polarization states S1 S2 S3 and S4 and for all the channels on the user list One call to this function is used to acquire only one polarization one IL set of data This function must be called for each of the four polarization states to obtain a full set of IL data required for a PDL calculation The parameter hStartPDL is used as a flag to indicate the acquisition of new data To acquire a new set of data the user must set the hStartPDL value to 1 TRUE To acquire a complete IL data set all the other calls to this function use the value 0 FALSE for hStartPDL The function returns 0 if the PDL acquisition is not finished It returns 1 if the PDL acquisition is completed and a PDL processing can be started It returns an error number if there is any error For this function to work a zero loss reference is done for each polarization state prior to the call to acquirePDL C prototype int acquirePDL unsigned short chList unsigned short unNumChannels short hStartPDL VB prototype Declare Function acquirePDL Lib SWS15100 ByRef chList ByVal numChannels ByVal startPDL As Long Output None 142 Programming Guide Artisan Technology Group Qua
17. the column shows the crosstalk in the channel immediately to the left of the reference channel RXTalk the column shows the crosstalk in the channel immediately to the right of the reference channel 82 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com TXTalk the column shows the total also called cumulative crosstalk in all specified channels adjacent to the reference channel The channels to include are all the ITU channels included in a specified wavelength range See the How the SWS Calculates Values section for explanations of the methods used to calculate these values A set of checkboxes and buttons which enable the user to control the analysis are below the table of computed parameters Auto Analysis Checkbox when checked the table is updated every time a new scan is acquired Log to File Checkbox when checked the table is written to a specified file every time the table is updated The name of this file is shown in the adjacent text box and can be changed using the standard Browse button Select Analysis Button used to select the type of analysis When this button is pressed a dialog box is displayed Figure 72 Analysis Definition File Analysis is performed from a predefined analysis definition file ADF or by creating a new file The following is an example of an ADF file
18. used to measure the device If set in continuous mode does the IL vary from one scan to the next Device What mode is being used Measurement for measurement Are there any other devices such as a circulator or a switch between the CM and the device Action Take a zero loss reference on one channel Continuously acquire SWS traces The noise on the System Noise software plot should be between running 0 025 dB and 0 025 dB What is the maximum magnitude of the noise seen on the plot Is the trace mostly less than this 0 01 dB Is the trace flat around 0 dB Does the average value of the insertion loss drift with time by more than 0 005 Does the noise start suddenly in the scan Does the noise stop suddenly in the scan Is the noise present on all scans If the noise is intermittent how frequently does it appear 214 Reference Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com component Gondiion measurement Answer Comment Action Measure power to the device with the system System operating running What is the maximum power input to the DUT Error Messages in SWS Error Messages from the Tunable Laser Source The error messages generated by the tunable laser source are listed in Table 23 with actions to take when the messages appear Table 23 Tunable Laser Source Error Messages WARNING Us
19. 105 Uniphase FAG 16108 samep WINE Figure 38 Control Module Front Panel Operating and Maintenance Instructions 57 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Detector Module Front Panel The front panel of the detector module is shown in Figure 39 431 105 Uniphase smursver oro MODE Figure 39 Detector Module Front Panel Dual Band Selector Switch Module Front Panel The DBSSM is an optional module that can be installed in the OWB10002 chassis It permits the use of two transmitters with one receiver Figure 40 shows the DBSSM 105 valpene Sweieis OUTPUT o o N PS Figure 40 Dual Band Switch Selector Module Front Panel Four State Polarization Controller Front Panel The Four State Polarization Controller Model SWS15104 for C band Figure 41 is an optional component used to measure the PDL and the average loss of a wide range of passive optical components 58 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com it JDS Uniphase SWS15104 pp POLARIZATION CONTROLLER O f 7 Lock aper O ans O ORNER 1 a our Li ISMPCI PMPC Figure 41 Four State Polarization Controller Front Panel Four State Polarization Controller Rear Panel The back of the controller is shown in Figure 42 not used not used IEEE GPIB
20. 175 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com command Form Parameters Win Max Response me I fm vesen 1 on fm me fm mme mm ms ssm 1 ner fm ensom fom rom _ meer omr som _ we i sm m em fm se Mm se fm sm ow m om fm me m TTC me fm move fm move fm pm wa m w er fm mr sm fm oven ast fru fr fr table continued 176 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Command Form Parameters win Max Response cos fm mus 1 7 sm fm rom w fimoles rom f f e o mm tet fr rose Jo enes e rracey war SS Eo m em fm me Jf fm SCPICommon Commands The following tables describe the most common SCPI commands Clear Status Command Function Clears the following queues and registers Error queue Standard
21. 88 SOURCE www artisantg com have the receiver connected If you are not sure of the LPT position Autodetect option can also be used For more details see the Installing the Software section 5 From the same group of shortcuts Start gt Programs gt SWS15100 launch SWS Setup Test Wizard See the following image My Computer Newark Neighborhood V R JDS Uniphase og Bj Accessories Adobe Acrobat X sllCLEARA0 Dr Solomon s AVTK X Lotus Appicatons j My attics X Oviats 3 StartUp Conigue SWS10 Interface Winzip gt Help On OLECTRA 20 Chart BS Microsoft Excel J W Microsoft NethAscting fe SWS15100 README Microsan Prot Editor SWS15100 Version 3 0 1 j Microsoft PowerPoint BF Microson word IB MS D05 Promp TOF OF JU RL 4 h se Seg Sere Figure 10 Starting the SWS Setup Test Wizard 34 Getting Started Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Ra SWS Testing aed Setep 4 1 IDS Uniphase SWS Testing and Setup Category Current Settings Status 1 Cheoking for I O Interface and Intesface SWS Parnitel Connection between the PC and the oe ire Untested OWB Receiver Port 2 Checking for Dual Band Switch pg LE Found SWS16103 4 D HUniested Outpet 3 Checking for Communication StoWL a between the Source Optic Module NjA My SOM Transmitter and the OWB tr 1820 T570 Untested the Nominal Size 28700 1640 1
22. A A DRIVER age CE 3 INE 50493 vir 103 240 4 90 VA mans JG FUSE TARV 80 OPERATOR GERVIOEARLE NATO WARNING PER GER VIE 10 SR VE TARE PERS FERGE Figure 42 Four State Polarization Controller Rear Panel Setting Source Optics Module Parameters Before using the SWS system ensure that the SOM is properly set up to send the correct signals to the receiver control module When the SOM is powered up it initializes the laser and its own parameters It also displays the version of firmware installed After the firmware display it automatically displays the main menu from which the user selects the type of operation required Power Up Screen The SOM screen on power up is shown in Figure 43 The screen is displayed after the SOM has been properly initialized Operating and Maintenance Instructions 59 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com JDS Uniphase Swept Wavelength System Version 3 13 Figure 43 SOM Power Up Screen Main Menu The main menu of the SOM is shown in Figure 44 The menu is used for selecting execution or setup parameters The SETUP button is used to go to the Parameter Setup menu To go to the menu used to set up the laser for manual operation press the MANUAL button The DISPLAY button is used to display the SOM intrinsic parameters such as the serial number the scan length and the wavelength calibration constants Fi
23. EEPROM in the Control Module in the receiver e As an added option choose whether to restore previously saved calibration values into the EEPROM from the INI file Ensure the tunable laser source is properly calibrated For standard laser operation during recalibration refer to the laser manual for operating instructions 1 Ensure that the tunable laser source is properly calibrated A calibrated wavelength meter is required for this operation Start by connecting the output of the laser to the wavelength meter Figure 82 3105 Uniphase TNI TUNAGLE LASER SOURCE i gt Tunable Laser Source wavelength meter Figure 82 Tunable Laser Source Calibration Setup 2 Set the wavelength of the tunable laser source to 1520 nm for a C band system or 1540 nm for an L band system Compare the setting with the meter reading 3 Set the wavelength of the tunable laser source to 1570 nm for a C band system or 1630 nm for an L band system Compare the setting with the meter reading 4 If the difference for either reading is more that 0 2 nm recalibrate the tunable laser source Start by pressing the 2 key followed by the key The display automatically shows a short wavelength in the tuning range There is a prompt to enter the measured wavelength therefore reading from the meter enter the measured wavelength on the tunable laser source using the numbered keys and then press the Enter key The short wavelength is set 100
24. Instrumentation Guaranteed 888 88 SOURCE www artisantg com Recording SWS Performance The SWS Performance Checklist is used as a diagnostic tool by the user and by technical support After the tests in the Troubleshooting and Troubleshooting Flowcharts sections are performed the checklist is filled out The completed performance checklist is used when communicating with technical support The checklist lists measurements conditions and procedures performed by the user information that is necessary for technical support to diagnose SWS problems Add comments where more information than indicated is necessary for correct diagnosis Attach your description of the faults or failures encountered There is a section for each component of the SWS In each section circle the appropriate options and enter the measured values If a procedure has been performed that does not follow the standard procedures listed in this user s manual list the steps as they were performed Record any other abnormal conditions not listed on the checklist for example time of day of intermittent problems power fluctuations caused by weather conditions or other conditions that are unusual to the normal operating environment of the SWS Reference 209 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com SWS Performance Checklist component Gonation measurement Answer Commen What is
25. M PDL Axis nm C GHz Samples Weight Half Filter Size ra fr ran pp F fe nar g Gave Y Axis dB c B_ Reset G Reset I InvertDataSet Refresh a Axes LE Line Syies Figure 68 Process and Display Page Scan Mode Two types of scanning are available in the SWS single and continuous In single scan mode one scan is performed and the result is displayed When the scan is complete the system returns to the IDLE state In continuous mode the data is acquired processed and displayed for each scan Then new traces are acquired The data acquisition and display stops only when the Stop Acquisition button is pressed 78 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Averaging Successive traces can be combined to average the results In IL mode successive traces are combined without reference to the polarization state In PDL mode traces are averaged for each of the polarization states individually The result of averaging is to reduce the effects of white noise To enable averaging the user enters the weight and number of samples The weight of the latest sample is also required See the Averages paragraph in the How the SWS Calculates Values section for information on how the averaging is implemented Smoothing Smoothing applies a triangular filter to the data If the half size chosen for
26. Syntax TRIG Function To ooo the source optics module to go into a continuous mode of commanding the laser C a set of sweeps Example TRG TRIGer Function Returns the state of source optics module processing Returns 1 if the source optics module is controlling the laser through continuos sweeps Returns 0 if the OSM is idle and not controlling the laser TRIG returns 1 if sweeping is in progress ABORt Function Commands the source optics module to stop causing the laser to sweep repeatedly FCOUNT Sets the source optic module s internal variable for the required pulse count Programming Guide 185 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com 186 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com FCOUNT FCOUNT Returns the source optic module s internal variable for the required pulse count FMO Sets the source optic module s internal variable for FMO FMO 516984 0 FMO Returns the source optic module s internal variable for FMO FLO Sets the source optic module s internal variable for FLO FLO 542138766 0 FLO Returns the source optic module s internal variable for FLO FDESC Sets the source optic module s internal description variable FDESC Returns the source optic module s internal descript
27. a dark voltage VoltagePower measurement isZeroLossDone Checks if a zero loss reference has been done for a specified polarization getReference Collects the zero loss reference trace data from the hardware Call this function after triggering a trace with the triggerTrace function getAverageZeroLoss Gets the average zero loss power for a specified channel and Power polarization Insertion Loss Functions The following functions are used to acquire Insertion Loss traces from the SWS Follow the programming flowcharts in the Programming Guide to tie these functions together Collects the trace data from the hardware getDataSize Determines the length of the trace from the start wavelength to the maximum wavelength defined by LambdaMax in the SWS15100 INI file getILTrace Returns the IL trace from the last collection Programming Guide 125 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Polarization Dependent Loss Functions The following functions are used to acquire PDL traces from the SWS It is not necessary to triggerTrace before calling getPDLreferences as in the case of using getReference for IL Zero Loss Reference Follow the programming flowcharts in the Programming Guide to tie these functions together getPDLReferences Gets all four zero loss references for all four polarization states S1 S2 S3 and S4 required for a PDL measurement acquirePDL Acquires
28. all insertion loss data required for a PDL measurement processPDL Processes the four insertion loss traces acquired through a call to the function acquirePDL to compute PDL getPDLTrace Gets all four PDL traces for a specific channel after all acquired channel traces have been computed by the processPDL function getTracePolarization Determines the polarization state of the last trace collected setPolarizationControl Sets the polarization flag that enables or disables polarization change getPolarizationControl Gets the status of the polarization flag getChannelPolarization Retrieves the polarization of the trace for the specified channel in cache memory Choosing between C and L Band Use this function to toggle between C and L Bands when using a Dual Band Selector Switch Module DBSSM setBand Sets the wavelength band C or L to be processed next 126 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Analytical Functions Use these functions to conduct analysis on your acquired data Deserpion O O getLocalBandwidth Finds the bandwidth of the largest peak in a specified wavelength range getLocalCenterWave Finds the center wavelength of the largest peak in a specified wavelength range Programming Guide 127 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Miscellaneous
29. are Numeric Value Any value between 9 9E37 and 9 9E37 The value can be sent as an integer 154 a decimal 15 2 or an exponential number 4 5E6 The character data forms MIN minimum MAX maximum and DEF default are also valid NRf Any value between 9 9E37 and 9 9E37 The value can be sent as an integer 154 a decimal 15 2 or an exponential number 4 5E6 The character data forms MIN MAX and DEF are not valid Boolean 0 1 or ON OFF or TRUE FALSE Any other numeric value sent is rounded to the nearest integer If the resulting integer is anything but 0 it is interpreted as 1 Character A character string that contains no more than 12 characters Each character in the string must be either an uppercase or a lowercase letter a digit 0 to 9 or an underscore _ String Any character string The characters in the string can be any ASCII character and the string can be of any length unless otherwise specified in the command table For the source optics module to recognize a single or double quotation mark or as part of the string and not as the end of the string two sequential single quotation marks or two sequential double quotation marks are used to represent a single quotation mark or a double quotation mark respectively Non decimal Numeric Any binary octal or hex value where the non decimal numeric values xxxx are preceded by the type T For example in Txxxx T is defined as
30. channels from the list box use a combination of the lt Shift gt or lt Ctrl gt key and the left mouse button or the arrow up or down key The channel is moved to the list on the right To deselect a channel highlight it in the list on the right and press the lt key Channels must be selected to make any measurements on devices attached to them Also analysis can be performed only on selected channels If the selected channel does not appear on the list click the Refresh button The list of available channels is updated Stopping and Starting Acquisition The Start Acquisition and Stop Acquisition buttons are for collecting or stopping the collection of new data Status Analysis Area The Status Analysis area shown in Figure 66 is used to display the status of the system as well as the current value of important system parameters Last Polarization PS Done List Ave Done Unknown st 52 53 54 0 me f Figure 66 Status Area The status area contains the following text boxes e Last Polarization State displays the last polarization state acquired Valid polarization states that appear in the text box are SO S1 S2 S3 S4 and Unknown Unknown appears when the Start Acquisition button is first clicked or when the Last Polarization State is out of range e Polarization Done List used for PDL and averaging The Polarization Done List is not available in Insertion Loss Mode except in the averaging and the r
31. continue or advised that the calibration is complete Click the Yes button to continue the software acquires another trace Double click on the two peaks as in the previous step and press recalibrate Calibration is now complete click OK 4 If step 3 is necessary for more than 5 iterations a system error is indicated please contact JDS Uniphase customer support Save the calibration values to the Eeprom in the Control Module in the receiver To save the calibration values to the EEPROM in the receiver click on the Save Calibration button A dialog box will appear asking if you want to save the previously stored values in the eeprom to the INI file Say yes to this option if you plan on reverting to the old values in the future Wavelength Calibration EG 2 Save Old Calibration Value Figure 90 To revert to the old calibration click the Restore Calibration button The following dialog box will appear 108 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Wavelength Calibration x 2 To restore OLD POWER CALIBRATION VALUE to Control Module EEPROM Click YES for Last Calibrated Values Click NO for Factory Calibrated Values Click CANCEL to abort action Figure 91 Click YES to restore the last calibration data Note Latest calibration data currently stored in the EEPROM is lost and the old calibration data is
32. copy the DLLs to some other directory depending on the development platform The resident directories for different platforms where the DLLs must be installed are shown in Table 18 Installed Directory refers to the root directory where SWS15100 EXE resides The default is Program Files JDS Uniphase SWS15100 WinSysDir is the system directory In Windows 95 98 it is Windows System and in Windows NT it is WinNT System32 WinDir is the Windows directory In Windows 95 98 it is Windows and for Windows NT it is WinNT Programming Guide 123 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Table 18 Files used by SWS Software SWS15100 DLL Installed Directory C Move to the directory where the Development development application resides LabVIEW Move to the LabVIEW default directory Move to WinSysDir OWBSYS DLL WinSysDir C Leave in WinSysDir LabVIEW Leave in WinSysDir VB Leave in WinSysDir OWB1 DLL Installed Directory C Move to the directory where the development application resides LabVIEW Move to the LabVIEW default directory Move to WinSysDir OWB2 DLL Installed Directory C Move to the directory where the development application resides LabVIEW Move to the LabVIEW default directory Move to WinSysDir OWB3 DLL Installed Directory C Move to the directory where the development application resides LabVIEW Move to the Lab
33. dB The passband measured with an x dB threshold is the width of the trace at a level xdB down from the value at the reference wavelength The reference wavelength may be selected at the nearest ITU channel the nearest custom channel or the center wavelength as defined by the Bandwidth Center Wavelength function x dB g g nm a g g 88 Passband la 24B Threshold gt Figure 115 Calculating Passband 226 Reference Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Figure 116 shows how to measure flatness Flatness measured with respect to Bandwidth 3dB threshold dB A A linear fit line is calculated across the top of the curve The points where the linear fit line hits the bandwidth are determined a and b The difference in power is measured Alternatively passband or a user specified range can be substituted for conventional bandwidth c and d 0 2 En me 1 linear fit line i Tb S the difference in power a i measured YIDUSJEAEM seep i mm magma unsussAen Ed 4 gm pousan gpc D t 2 Bandwidth 3d8 Threshold Passband 3dB Threshold an in this case not used Figure 116 Calculating Flatness Reference 227 Artisan Technology Group Quality Instrume
34. distance is in nm or GHz as defined by the user in the Engineering Unit section of this dialog box To measure flatness also define the parameters for passband or bandwidth as applicable Crosstalk Crosstalk is the difference in power between the primary channel and its adjacent channels which are the channels to the immediate right and left of the primary channel Adjacent channels are defined by the user in the Selecting the ITU Grid or Specifying Channels section Cumulative Crosstalk Whereas crosstalk measures the difference in power between the primary channel and the adjacent channels cumulative crosstalk measures the difference between the power of the primary channel and the sum of the powers of the remaining channels in the defined wavelength range Adjacent channels are defined by the user in the Selecting the ITU Grid or Specifying Channels section For a full description of how SWS defines these values see the How the SWS Calculates Values section Selecting the ITU Grid or Specifying Channels To define new communications channels or to select a standard set of ITU channels press the Setup button in the Analysis Setup dialog box A dialog box appears as shown in Figure 73 CITU Channels Setup EI ITU 1 29 1542 142 30 1542 936 31 1543 730 32 1544526 E 33 1545 322 34 1546 119 35 1546 917 36 1547 715 37 1548 515 38 1549 315 39 1550 116 40 1550 918 41 1551 721 42 1552524 x 4 b Space GHz 50 v
35. event status register Status byte register Operation event register Questionable event register If CLS is sent immediately after a message terminating sequence both the output queue and the MAV bit in the status byte register are cleared CLS also cancels the functions of OPC and OPC Programming Guide 177 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Standard Event Status Enable Register Command Syntax ESE lt space gt lt numeric value gt where 0 lt lt numeric value gt lt 255 Function Sets the bits in the standard event status enable register The numeric value is rounded to the nearest integer and converted to a binary number The bits of the register are set to match the bit values of the binary number ESE 216 sets the standard event status enable register bits to 11011000 Standard Event Status Enable Register Query Function Returns the contents of the standard event status enable register as an integer that when converted to a binary number represents the bit values of the register ESE returns 216 if the standard event status enable register is set to 11011000 Standard Event Status Register Query Function Returns the contents of the standard event status register as an integer that when converted to a binary number represents the bit values of the register ESR returns 195 if the standard event status register is set to 11000011
36. example when the user has difficulty performing a wavelength calibration because the lines are difficult to identify or if the internal acetylene cell is too far from the receiver and no external acetylene or HCN cell is available to do the wavelength calibration Factory power calibration can be restored if the equipment required to do power calibration is not available and the unit was calibrated at the factory less than a year earlier To restore the factory power calibration Operating and Maintenance Instructions 117 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com 1 From the Power Calibration window Figure 95 select one channel from the Selected Channels list click the Process button and select the Set to Factory Settings option The factory settings are reset 2 Repeat the process for the next channel To restore the factory wavelength calibration 1 Inthe SWS program select Insertion Loss mode 2 From the System menu select Calibration 3 Select the Wavelength Calibration tab in the dialog box that appears 4 Click the Restore Calibration button at the bottom of the dialog box 5 In the message box that appears click the No button to select Factory Calibrated Values If there are unexpected results contact JDS Uniphase Enabling Wavelength Diagnostics on C Band and L Band SWS Systems In systems used in applications where it is necessary to monitor wav
37. header is preceded by a colon When the header is preceded by a colon the full path to the command must be included in the command header ROUTe CLOSe channel list gt STAT The following program messages are valid ROUTE CLOSE 1 4 CLOSE 5 5 ROUTE CLOSE 1 4 ROUTE CLOSE 5 5 ROUTE CLOSE STATE The following program messages are not valid ROUTE CLOSE 1 4 ROUTE CLOSE 5 5 no colon before second command ROUTE CLOSE 1 4 STATE STATE command at different level than CLOSE Optional Commands Optional commands are commands that need not be explicitly included in the command path If an optional command for a path exists it is enclosed by square brackets in the command tree If an optional command is implied in the first command of a program message the command path for subsequent commands is determined as if the default command has been explicitly included in the first command header ROUTe CLOSe lt channel list gt STAT The following program messages are valid ROUTE CLOSE Q3 4 CLOSE amp 3 4 Programming Guide 173 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com The following program message is not valid CLOSE 3 4 STATE the STATE command is not at the same level as CLOSE Parameter Types The acceptable parameter types for each command or query are listed in Table 20 and Table 21 Valid parameter types
38. is a legal agreement between you either an individual or a single entity and JDS Uniphase Corporation and its subsidiaries collectively JDS Uniphase for the JDS Uniphase product identified above which includes computer software and associated media and printed materials SOFTWARE By installing copying or otherwise using the SOFTWARE you agree to be bound by the terms of this EULA If you do NOT agree to the terms of this EULA promptly return the unopened and unused SOFTWARE to the place from which you obtained it for a full refund SOFTWARE LICENSE The SOFTWARE is protected by intellectual property laws and international treaties including copyright and is only licensed not sold 1 GRANT OF LICENSE This EULA grants you the following rights 1 1 JDS Uniphase grants to you the right b install and use one copy of the SOFTWARE on a single computer solely for use in conjunction with JDS Uniphase supplied hardware or hardware approved by JDS Uniphase In case of equipment failure you may use the SOFTWARE on a back up system but only for such limited time as is required to rectify the failure 1 2 You may make one copy of the SOFTWARE except for the printed materials solely for backup or archival purposes 2 OTHER RIGHTS AND LIMITATIONS 2 1 You may not nor permit others to so do copy translate modify create derivative works reverse engineer decompile disassemble except and only to the extent that such activity is expre
39. maateaubieeeaeenambsend mentee 168 Figure 102 PDL Mode PSN 544 169 Figure 103 Zero Loss Data in PDL MOOG cas cccatet cea teeeeciesser hans sua iebadess Roel kceesannenlaaiiemiieduadis 170 Figure 104 Additional PDL Processing rrrrnvrvnnnrrvnnnvrnnnnrnnnnnvnnnnnnnnennnnnennvnsennnnnennensenvnnnsnnenennnee 171 Figure 105 Testing the System first part ssrernrnnnrrnnn venn nvennrnnnrrrnn venn nvnnnrnnrrnnrnrennnnernnenrnnennn 200 Figure 106 Testing the System continued um eeeimsunsasassenisinsmienenensovbike 201 Figure 107 Testing the SOM sciasccccsscpstavacceesdersastsscseecsenstenstsuestaveetepinciserteastesbtanatanestonsedesagesterss 202 Figure 108 Testing the Receiver first part srrrnnnrrnnnnrrnnnnrnnnnnrnnnnnrnnnnnnnnnnnnnnnnvennnnnnnnnnvnnnnnne 203 Figure 109 Testing the Receiver continued xranenannnvnnnnvnnnnnvnnnnnvnnnnnvnnnnnvnnnnnvnnnnnnnnnnnnnnnnnse 204 Fig re 110 Testing for System Nene 205 Figure 111 Testing for SOM POWer rrnrnnnrrnanvvnnnvnnnvonerrnnnvennnvnnnvenerrnsnvennnnnrnrenernsnnnennnnennrenenntenn 206 Figure 112 PPI Troubleshooting Procedure Section 1 srrnvranvrnnrnvrnnnvnnnvnnvrnnrrrranrrernvennernvennnn 207 Figure 113 PPI Troubleshooting Procedure Section 2 nrrnrnnvrnnvnrvnnnvnnnvnanvenvennenrennannnnnennennser 208 Figure 114 Calculating Bandwidth reeorrnonrrnnnvnrnrenerrnnnvennnvnnnvenerrnnnvennnnnrnnenerrnnnvennnnennnenernnenn 225 Figure 115 Calcul
40. make the following changes and additions 1 Inthe DATA section change the value of MaxPoints to 29700 2 Adda GENERAL section with the following lines GENERAL Diagnostics 1 DiagnosticsLog 1 LambdaMax 1630 3 Add a Band Info section with the following lines Band Info L Start 1540 L Stop 1630 4 Save the file Resetting the Number of Points on the Source Optics Module Parameters in the SOM can be changed using the RS232 Control port The following items are required for resetting parameters on the SOM e RS232 cable extension cable with a DB 9M connector at one end and a DB 9F at the other depending on the COMM port on the computer Operating and Maintenance Instructions 119 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com e A terminal program such as Hyperterminal which is supplied with Windows 95 or Terminal supplied with DOS In the following procedure Hyperterminal is used The procedure for setting the number of points on the SOM is 1 Connect the computer Comm Port 1 to the RS232 Control port on the SOM The SOM has several RS232 ports each is clearly labeled Ensure that the correct port is selected 2 Run the Hyperterminal program 3 Create a new connection 4 In the Hyperterminal program select the File and Properties menu items Set the communications protocol to the following values Bits per second 1200 Data bits 8 Stop b
41. module to change its internal start wavelength to the specified value This value is used to command the laser on the next sweep SOUR FREQ START 1518 5 SOURce WAVElength START SOUR WAVE START Function Causes the source optics module to output its internal start wavelength used for laser control SOUR FREQ START returns 1518 5 SOURce WAVElength STOP SOUR WAVE STOP lt space gt lt NRf gt Function Causes the source optics module to change its internal stop wavelength to the specified value This value is used to command the laser on the next sweep SOUR FREQ STOP 1575 0 SOURce WAVElength STOP SOUR WAVE STOP Function Causes the source optics module to output its internal stop wavelength used for laser control Programming Guide 183 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com SOUR FREQ STOP returns 1575 0 SOURce SWEEP DELAY SOUR SWEEP DELAY lt space gt lt NRf gt Function Causes the source optics module to changes its internal delay setting to the specified value This value is used to set the delay in seconds between subsequent sweeps SOUR SWEEP DELAY 1 5 SOURce SWEEP DELAY SOUR SWEEP DELAY Function Causes the source optics module to output its internal variable used to control the laser s inter sweep delay SOUR SWEEP START returns 1 5 SOURce SWEEP TIME SOUR SWEEP TIME lt sp
42. of the laser source Connect the other end to the Aux 1 port at the back of the SOM Connect one of the supplied universal power cords to the back of the SOM and plug the other end into the universal power bar in the transmitter cabinet Connect a universal power cord to the back of the laser source and plug the other end into the power bar Plug the power cord supplied with the system into the power bar in the transmitter cabinet and the other end into an AC power source Clean and connect the FC PC connector on the 10 m FC PC FC APC jumper to one of the output ports on the SOM Route this fiber to the outside through either fiber routing panel to the back of the transmitter cabinet The fiber can be taken out of the cabinet either through the grommet holes at the top or the opening at the bottom Repeat the previous step for all required outputs Turn on the power bar Reset the breaker on the power bar Getting Started 27 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Caution The Relay port on the rear panel of the source optics module enables remote control of the relay drivers Although the connector is a 9 pin RS232 type connector it is not an RS232 port Do not connect a standard RS232 cable to this port The laser source and SOM can be installed in other 48 26 cm 19 in racks or cabinets If installed in other racks provide additional support rails to h
43. performed for the specified channel C prototype int isDarkvolatgeDone unsigned short chID char timeStamp VB prototype Declare Function isDarkVoltageDone Lib SWS15100 ByVal chID ByVal timeStamp As Long Input unsigned short chID This is the channel to be checked Output char timeStamp This is the time of the last zero loss reference for the specified polarization At least 32 characters must be assigned to this array Return Value When a dark voltage measurement has been done for the specified channel the return value is 1 TRUE When a dark voltage measurement has been done for the specified channel the return value is 0 FALSE When there is an error the return value contains the error number getAverageDarkVoltagePower Function Description o O Purpose The getAverageDarkVoltagePower function is used to get the average power measured during a dark voltage measurement This function is called after the dark voltage measurement for the specified channel has been performed C prototype int getAverageDarkVoltagePower unsigned short chID double dAvePower VB prototype Declare Function getAverageDarkVoltagePower Lib SWS15100 ByVal chID ByRef dAvePower As Double As Long Input unsigned short chID This is the channel number Output double dAvePower This is the average dark voltage power in dBm Return Value If there is no error the return value is 0 If there is an error the return value conta
44. source optics module 3 Using the 0 5 m hybrid jumper supplied with the receiver attach the FC APC end to the To Device connector on the receiver s control module bottom port Connect the flat FC PC end to the first channel on the receiver s detector module Installing Additional Detector Modules More detector modules can be added to the chassis to enable testing of several channels simultaneously The standard SWS package includes a chassis that can hold eight detector modules and a single control module When more than eight detector modules 16 channels are required the extra modules are installed in the system by adding another chassis Order the required number of SWS15107 Dual Detector Modules Each additional chassis OWB10002 Chassis includes the required 50 pin ribbon cable Up to eight chassis can be daisy chained together to form one receiver station 38 Getting Started Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com To add a detector module to an existing receiver chassis 1 Turn off the power at the back of the receiver The unit does not need to be unplugged Caution The detector modules are not hot swappable Turn the power off before installing or removing a detector module 2 Remove the individual blanking plate from the front of the chassis the next available slot is recommended so that channel numbering is contiguous 3 Slide in the new
45. the laser model SWS15101 number SWS16101 During Does the laser stay in YES power up Initializing NO System Is the laser scanning YES running properly NO What is the wavelength System stopped error at the start wavelength What is the wavelength System stopped error at the stop wavelength System What is the power shown stopped on the laser display Sveter What is the laser power a ed measured at the FC PC pp end of the blue fiber Polarization Is a polarization controller YES Controller connected to the SOM NO N A What is the polarization controller model number SWS15104 SWS16104 Are the digits on the display changing with each scan System running Source Optics What is the SOM model SWS15102 Module number SWS16102 What is the maximum power measured at the Signal Cond Out port Action Reconnect Signal System Cond Out ee What is the maximum power measured at output port 1 System Action Reconnect Signal running Cond Out 210 Reference System running Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com component Gondiion measurement Answer Commen What is the maximum power measured at output port 2 Action Reconnect Signal Cond Out Source Optics System Module running What is the maximum power measured at output port 3 Action Reconnect Signal Cond Out System running What is the maxi
46. through the system The detectors generate a small current even when no light falls on them This feature is caused by current leakage through the detector and is created by background electrical noise temperature variations and stray light The resulting dark voltage can be measured and compensated for during DUT characterization It is recommended that a dark voltage measurement be made every time the system is installed in a new location It establishes the noise floor for all SWS measurements Operating and Maintenance Instructions 91 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Measuring Zero Loss Before making measurements the system characteristics without a DUT need to be established This process is known as zero loss referencing or simply referencing Zero loss references must be performed whenever the fibers to the DUT or from the DUT to the detector module are changed moved or cleaned If the fibers are left essentially undisturbed a zero loss reference needs to be done only once a day The measurement compensates for any optical losses or wavelength dependence not due to the DUT System specifications are based on a reference made directly before device testing To make a good zero loss measurement 1 Set up the fibers as if to test a device Instead of connecting the DUT connect the device input and the channel input using the proper mating sleeve A z
47. troubleshooting the SWS Ensure that the system is correctly assembled and the procedures described in the Installation Testing the SWS Components and Testing the System sections of this manual are followed The SWS Performance Checklist is used to record the results of the testing for reporting to the service hotline or the local JDS Uniphase representative The following flowcharts are listed in this section e Testing the system see the flowcharts in Figure 105 and Figure 106 e Testing the SOM see the flowchart in Figure 107 e Testing the receiver see the flowcharts in Figure 108 and Figure 109 e Testing for system noise see the flowchart in Figure 110 e Testing for SOM power see the flowchart in Figure 111 Reference 199 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Testing the System The flowcharts in Figure 105 and Figure 106 show the steps to follow when troubleshooting the whole SWS system Figure 105 Testing the System first part 200 Reference Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Figure 106 Testing the System continued Reference 201 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Testing the Source Optics Module The flowchart in Figure 107 shows the steps to follow when troubleshooting the source optics mo
48. unsigned short refpeak This is an integer type that has the following set of values MAX_PEAK_REF 0 MIN PEAK REF 1 double interLevel The interpolation level is the height from the peak where the bandwidth is calculated unsigned short baseRef This is Boolean For minimum peaks the baseRef is 1 and the bandwidth of the peak is calculated from the base of the peak For maximum peaks the baseRef is 0 and the bandwidth is calculated from the peak Output double pBandwidth The pBandwidth stores the bandwidth of the peak within the wavelengths dStartWave and dStopWave Return Value When there is no error the function returns zero When there is an error the return value contains the error number 146 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com getLocalCenterWave Description The getLocalCenterWave function calculates the center wavelength and its corresponding power for the largest peak that is contained in the pPowData array within a specified wavelength range This function must be called only after the user has obtained the pPowData and pLamData arrays through a call to the getILTrace function The parameters refpeak and interLevel must be supplied by the caller C prototype int getLocalCenterWave double pLamData double pPowData unsigned short dataSize double dStartWave double dStopWave unsigned short refpeak double inte
49. value is selected press the SET button Operating and Maintenance Instructions 61 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Figure 47 Manual Mode Settings on the SOM In manual mode the laser power and wavelength can be set to any value the laser can be enabled or disabled and the four state polarization controller can be manually controlled The procedure for setting the wavelength or power of the laser is similar to that for setting the system parameters Press the POWER button to set the power The following menu shown in Figure 48 appears The button marked RELAY is for future expansion Do not use this option MANUAL SELECT LASER POWER Figure 48 Setting Parameters in Manual Mode Select the value of the parameter and press SET Press the BACK button to return to the previous menu POWER must be enabled to apply the parameter values to the laser Remote Option The REMOTE button on the SOM main menu is used to change the GPIB address of the SOM The button is used only if the SOM is being controlled through a GPIB master It can be used to set parameters or execute the SOM using remote control When the REMOTE button is pressed the display is updated as shown in Figure 49 62 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com REMOTE GPIB ADDR 7 BAC
50. 0 ByRef adLamData As Double ByRef adPowData As Double ByVal uhDataSize ByVal dRefWave As Double ByVal uhListSize ByRef pdLamOutWaveList As Double ByVal dBandWidth As Double ByRef pdinPowPeak As Double ByRef pdLeftOutPower As Double ByRef pdRightOutPower As Double ByRef pdTotalOutPower As Double As Long Input double pLamData The adLamData array stores wavelength points of the trace double pPowData The adPowData array stores IL power level dB scale points Each point from the pPowData array has a corresponding point in the pLamData array unsigned short dataSize This is the size of arrays pLamData and pPowData allocated by the user This is the size of the acquired trace retrieved by the user using the function getDataSize double dRefWave Specifies the wavelength relative to which crosstalk is calculated or the Programming Guide 153 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com reference wavelength unsigned short uhListSize This specifies the size of the array containing the out of band wavelengths double pdLamOutWaveList This is the array of out of band wavelengths for which crosstalk is calculated double dBandWidth This specifies the bandwidth within which to compute peak powers around each out of band wavelength Output double pdinPowPeak This is the peak power in the in band channel The peak is found around the referenc
51. 0 Acquire a trace When a PDL measurement is complete the selected traces are displayed To change the types of trace displayed without re acquiring new data de select the unwanted traces select the new ones and refresh the display Operating and Maintenance Instructions 93 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Interpreting PDL Data PDL values calculated by the SWS are obtained from linear combinations of the insertion losses at four polarization states that are well defined relative to one another The computation of PDL is accurate to within the level of system noise At a low IL value this level is 0 025 dB giving an uncertainty in the PDL of 0 05 dB However when insertion losses are high the noise also increases For example at 40 dB insertion loss the noise is 0 25 dB therefore the uncertainty in the PDL measurement increases to 0 5 dB Care must be taken when interpreting PDL measurements at high insertion losses The effects of system noise on PDL measurements can be reduced in two ways averaging and smoothing The number of traces to average can be selected With averaging over four traces the noise can be reduced by a factor of two Smoothing applies a triangular filter to the data If the half size chosen for smoothing is n the power at any point is P k P k r n 1 r n 1 where P k is the power at point k The sum is for valu
52. 002 chassis This component is a configurable chassis in which a control module detector modules and configurable optical interfaces can be installed Therefore the front panel as shown is only typical CAME CHANNEL anp control module detector module blanking plate Figure 34 Receiver Chassis Front Panel Receiver Rear Panel Figure 35 shows the back of the receiver chassis The IEEE 488 GPIB interface is not used for this application of the OWB1002 chassis cE Figure 35 Receiver Chassis Rear Panel 56 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Compact Two Channel Receiver Front Panel The compact two channel receiver shown in Figure 36 is an option that can be used instead of the OWB10002 chassis or it can be used as the first chassis in a string of daisy chained receiver chassis Q JDS Uniphase SwS16116 Com TEGENE Figure 36 Compact Two Channel Receiver Front Panel Compact Two Channel Receiver Rear Panel Figure 37 shows the back panel of the compact two channel receiver i ETI HOEK ThE ROWER CO fey jj lt GkouMbee CONDUCTOR MUST SE CoONMECTED FO GROUND 5 ADDITIONAL CHASSIS PARALLEL PORT CE mme orsmeren umvennu nr nens meres TG TRASS ETER PREC NRL Figure 37 Compact Two Channel Receiver Rear Panel Control Module Front Panel Figure 38 shows the front of the control module Ay
53. 01000 ce EE err ace errr EE eee 139 isDarkVoltageDone ERE EE NE ere ee er eer 140 getAverageDarkVoltagePOWe l rnrnnnvnnnnnvnnnnnvnnnnnvnnnnnvnnnnnvnnnnnnnnsnnnnnnnnnnnnnnnnnnnenn 140 getChannelPolarization ccccccecceeececeeeceeeeeeeeeeeeeceaeeeeeseneesaeecnaeseeeeseneesaaeesaeeees 141 Ed 10 sho 2 DONE REE ER NT RE 141 SUPE FRET SENER ae E 142 COMEP Dvergene 142 21416 225 ETE EEE TE ER 143 January 2001 D000317 Rev G Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com 915 aa Bel cz el gt EE TE tre EE ennenen 143 Ge verageZeroL ssPONer Lu mjsdisandaaisiissiussjbusaiiiende 144 getLocalPeakPower EEE EE seareseusies 145 getLocalBandwidth sacccssscesseossuesnvsssnnsdeusdoussnpiadescnwssodeandnduadunndadssnenidoedeuareusandeayleee 146 getLocalCenterWave rnnnrnanvvnnnvnnnvnnrrnnnvvnnnvnnnvennrnnnnvennnvnnnrnnenrnnnvennnennnvenernnenn 147 setBaNd EEE dees ig per ene aes a E gees 148 RS PAS PNL ctccnstetellcan Ea AS E iea inaa EREE iai 148 PELOPS enken eee 150 getF 1 As RE EE EE EE 151 FI 152 getITU 152 POT coe titans ns Peta ts Gee ea tie eee eee 153 Ge ERR eee eee 154 COI OW BIN Oss cceciastincesscancdnerdnapcxrssecesestanesay texksecestanvenenicbeesersastvertesaapdestauveasnnerstera 155 EI EE EEE te er rere ae eee 157 FU 157 terminate SWS decin a a a sene 158 DEL Error FANE eon ce Ans cd cet cate erona raaa anea ao a inean nEn E hna 159 Programming Ex
54. 30 dB 0 25 dB 30 to lt 45 dB Loss measurement resolution 0 01 dB Loss measurement repeatability 0 03 dB gt 15 dBm input to DUT Noise floor caused by source noise gt 50 dB gt 3 dBm laser input power to SWS15102 SOM 550 dB gt 15 dBm input to DUT 245 dB gt 20 dBm input to DUT 6 s 1 5 s per channel 20 nm s scan rate using the parallel interface 16 General Information and Specifications Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com table continued PDL Measurements Accuracy 0 05 dB 0 to lt 10 dB 25 5 C gt 20 dBm input to DUT 0 10 dB 10 to lt 20 dB 0 20 dB 20 to lt 30 dB 0 50 dB 30 to lt 45 dB Accuracy with 13 point smoothing and four 0 02 dB 0 to lt 10 dB averages 0 04 dB 10 to lt 20 dB 25 5 C gt 20 dBm input to DUT 0 05 dB 20 to lt 30 dB 0 06 dB 30 to lt 45 dB PDL resolution 0 01 dB PDL range 0to5dB Receiver control Custom interface for Windows 95 or Windows NT eee CS 1 Siecor is a registered trademark of Siecor Brands Inc SMF 28 is a registered trademark of Corning Incorporated 3 Windows is a trademark of Microsoft Corporation Windows NT is a trademark of Microsoft Corporation Transmitter This section contains the specifications for the transmitter unit The unit consists of the source optics module the tunable laser source and the cabinet Table 6 lis
55. 630 ne for each Band raked gi 4 Update Wavelength Calibration 553 uo JE Constant MO and L Band Unlected LabetWarnieg ome Figure 11 SWS Test and Setup Wizard 6 Once you have the optical link established between the SOM and the Control Module of the receiver and the laser is scanning run the Wizard by clicking on the Start button in the bottom of the form 7 For a new system all the configuration steps are included in the standard SWS setup package distributed on the CD ROM When the steps above are completed including the SWS software installation the PPI is ready to be used for collecting data from the receiver Should there be any difficulty installing configuring or running the PPI please refer to the troubleshooting guide on the Parallel Port Interface Troubleshooting If the data acquisition board is used instead of the PPI see the Installing the Data Acquisition Board section for installation instructions Installing Additional Receiver Chassis Up to eight chassis can be used for each receiver station Each chassis holds eight detector modules therefore up to 128 channels can be measured at a time or 126 if DBSSM installed The units are connected in a daisy chain configuration using the top two 50 pin connectors at the back of each chassis To add an additional receiver chassis and connect it to an existing chassis Getting Started 35 Artisan Technology Group Quality Instrumentation Gua
56. 8 Tunable Laser Source Other Specifications Heen 0 Weigh Dimensions with front 48 3 x 13 3 x 43 2 cm mounting handles 48 3 cm or 19 in subrack in accordance with EIA 310 D clearance WxHxD of 7 5 cm rear and 1 cm bottom required Operating temperature 15 to 30 C Table 9 outlines the specifications of the transmitter cabinet Table 9 Transmitter Cabinet Specifications Maximum power bar input voltage 100 to 240 V AC 50 to 60 Hz Physical Weight 31 0 kg Dimensions W x H x D 55 x 68 x 60 cm cabinet for 48 3 cm or 19 in wide equipment 12 U high in accordance with EIA 310 D General Information and Specifications 19 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Receiver Table 10 outlines other specifications for the receiver unit Table 10 Receiver Other Specifications Eee 0 Weight 15 1 kg with control module and eight detector modules Dimensions W x H x D with front 48 3 x 13 3 x 46 cm mounting handles 48 3 cm or 19 in subrack 3 U high in accordance with EIA 310 D allow 10 cm front clearance and 8 cm rear clearance Control and detector module 4 0 x 10 7 x 35 5 cm dimensions W x H x D Maximum number of modules per 1 control module chassis 8 detector modules Maximum number of chassis per receiver Environmental Operating temperature 10 to 40 C Storage temperature 40 to 70 C Humidity Maximum 80 RH at 40 C
57. ART GET DATA SIZE ALLOCATE MEMORY FOR 4 IL TRACES READ THE PDL TRACES INTO MEMORY PERFORM ADDITIONAL PROCESSING AS DESIRED ALL REQUIRED 5 CHANNELS S COMPLETED 5 Yes Y FREE MEMORY ALLOCATED END Call getDataSize to find the length of a trace Acquire a trace through getTraces before getDataSize is called Allocate sufficient memory for all 4 IL traces and wavelength data Each is an array of double floating point numbers of the length of a trace Call getPOLTrace to read in one channel at a time The trace data are in the form of a wavelength array and power arrays containing PDL ILMax ILMin and ILAve data Figure 104 Additional PDL Processing Programming Guide 171 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com External Control of the Source Optics Module If the transmitter is in a remote or inaccessible location or the user runs special applications that require different settings on the SOM the user can opt to control the SOM remotely The remote control requirements of the application program can be met using the RS232 Control port located on the back panel of the SOM Alternatively the SOM can be driven through a GPIB controller by connecting to the GPIB port on the back panel of the SOM To control the SOM using the RS232 or GPIB ports e The RS232 Control port
58. Chart Resize button and chart zooming control buttons are located The bottom left corner of the Main window where Channel Selection Start and Stop Acquisition and Reference buttons are located Contains the common area status area and tab pages A value of Crosstalk describes the levels of the signal attributed to leakage of optical power into undesired wavelength ranges and compared to the performance of a DUT within its working region Custom or ITU adjacent and non adjacent channels with their passbands as well as discrete wavelengths frequencies can be used to specify those undesired wavelength ranges The signal level obtained when blocking all light to the detector The flatness of the device is a measure of the slope of a straight line that is a best linear fit to the top of the trace in a given channel Flatness is calculated by finding the difference in power between the two points where the line crosses the band edges The user defines whether to use passband bandwidth or some other numerical range Defined for a Channel A with respect to a second physically isolated Channel B It is the insertion loss of Channel A at the nearest guard band of Channel B A crosshair that moves along the channel data up and down in wavelength The tab page where the user selects which markers are to be shown The absolute minimum found in the insertion loss trace over the whole wavelength range The special matrix used to compu
59. Functions These functions can be used to enhance your custom application Function Name Description getChannelList Gets the channel list for the SWS hardware connected getOWBInfo Gets the information for each of the modules in the channel list writeLED Writes a character string to the LEDs of a given channel blinkLED Controls the blinking of the LEDs for a given channel Sets the working units for the X axis to either nm or GHz getUnits Gets the current units for the X axis Finishing Your SWS Session Use this function call to close down your SWS program when you have finished using it terminateSWS Terminates SWS processing cleans up memory and closes files 128 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Interface Descriptions initSWS Function Description S O Purpose The initSWS function initializes the SWS DLL sub system This function must be called before any other function is called C prototype int initSWS unsigned short baseAddress unsigned short nominalSize char Path VB prototype Declare Function initSWS Lib SWS15100 ByVal baseAddress ByVal nominalSize ByVal Path As Long Input unsigned short baseAddress This is the ISA base address of the OWB interface card This address is determined at system installation The default baseAddress is hexadecimal 240 unsigned short nominalSize This is the nominal number
60. Instruments SOM Source Optics Module SPP Standard Parallel Port SWS Swept Wavelength System TPS Transmitter polarization state UCA Universal connector adapter VB Visual Basic WDM Wavelength division multiplexer 2 Terms Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Definitions Analysis tab page Bandwidth Center wavelength Channel Chart area Common area Configuration area Crosstalk Dark voltage Flatness Isolation Marker Marker tab page Minimum peak Mueller matrix Pan Where the user selects what type of analysis results are to be shown and for which channels The spectral width of a signal or filter The bandwidth is defined as the width in wavelength of the peak of a beam measured at a specified threshold The threshold is a power level below the maximum for a beam with a maximum peak or a power level below the average baseline if the peak is a minimum The interpolated wavelength marking the center of the peak measured at any threshold In SWS documents channels refer to physical detectors The upper detector on each detector module is an odd numbered channel while the lower detector is an even numbered channel In communications the word channel is more specific to ITU channels which are defined wavelength regions Refer to ITU channels in full as ITU channels to avoid confusing the two Where the data plots
61. JDS Uniphase service hotline to help diagnose the problem and it is to be returned with the equipment if factory repair is necessary If any problem cannot be solved by following the procedures listed in Table 22 contact the local JDS Uniphase representative or the service hotline If it is necessary to return the laser to JDS Uniphase for repair ship the unit only to the address given at the beginning of this document following the procedure outlined in the Getting Started section Table 22 Troubleshooting olem semen When the Execute button is Check the RS232 connection Ensure that the cable is pressed on the SOM an Marked PSTC 2463 error message laser timed out is displayed on the eee to the Aux 1 of Laser port at the back of SOM Connected to the RS232 port at the back of the tunable laser source If the error persists call the local JDS Uniphase representative or the service hotline Laser displays the error Check the power setting on the SOM message Limit Switch e Ensure that the power setting is set at 3 dBm If the Turn power off power is set at a higher value reset to 3 dBm e Restart If the problem persists turn the laser power off Contact the local JDS Uniphase representative or the service hotline to return the laser to the factory table continued Reference 189 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Proble
62. K OOOO Figure 49 Remote Option on the SOM The REMOTE menu also displays the type of laser selected Do not change this field Display Option When the DISPLAY button on the main menu is pressed some important system parameters for the SOM are displayed as shown in Figure 50 The parameters include e Serial number of the SOM e Number of points in a trace The number can be used to set the MaxPoints in the SWS15100 INI file e Value of Mo one of the wavelength calibration constants e Value of Lo the other wavelength calibration constant SYSTEM PARAMETERS Serial GC013576 Points 17500 Trigger 0 Init sg MO 516533 785 LO 541667326 590 DOWN ADJUST CONTRAST BACK Figure 50 Display Option on the SOM The other constants displayed are currently not used Source Optics Module Operation During SOM operation the display is updated to show the current operating conditions When the laser is commanded to scan dots are added to the bottom line of the screen which creates a moving display as shown in Figure 51 The display indicates that the SOM is operative If the dots do not appear or do not change the SOM is not operating correctly Error messages are displayed on the same line and remain on the screen until a button is pressed Operating and Maintenance Instructions 63 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Version 4 0 SW
63. L b bands Then click Start Acquiring button to launch the test Once the Nominal Size Detected matches the Default Nominal Size the test is successfully completed W Nominal Size Collection for spactivd Band a 5W515100 Yersion 3 0 0 ond oboe hes Muliple Bands capability a system detected no swatch on CWE Receiver Please meke sure that Deteul Nomina Size for All Bands is correct before to start any measuremert 2 Nominal Size for each band wil be collected by corinecting manually the SOM of each band to he DMB Recaner Piense connectnow the tbar cable trom the SOM ofthe Selected Band below to tha OWB Received Figure 27 Nominal Size Detection Click the Close button to finish this section of the Wizard If the test fails please check e If the SOM is sweeping in the EXECUTE mode e Acable connecting the SOM to the Control Module e If the right band is chosen Getting Started 49 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com This test usually takes a few minutes due to the fact that the Nominal Size of the data array is tested over several scans to ensure the consistency of the system s operation 15 In the last section the Wizard analyses the contents of the EEPROM of the Control Module of the receiver where the default values of the wavelength calibration are stored The Wizard returns a PASSED status if the calibration parameters MO and L are within ra
64. N STOCK ITEMS www artisantg com WeBuyEquipment 7 EQUIPMENT DEMOS HUNDREDS OF Instra 4 REMOTE INSPECTION LOOKING FOR MORE INFORMATION MANUFACTURERS Remotely inspect equipment before purchasing with Visit us on the web at www artisantg com 7 for more our interactive website at www instraview com information on price quotations drivers technical LEASING MONTHLY specifications manuals and documentation RENTALS ITAR CERTIFIED AE a Contact us 888 88 SOURCE sales artisantg com www artisantg com
65. RCE www artisantg com Performing Zero Loss Measurement Performing a zero loss measurement or reference is similar to the dark voltage measurement except that the Zero Loss check box must be checked References are made one channel at a time The software prompts the user to connect a jumper between the output of the Control Module and the channel of interest Press the Start Reference button to acquire the reference References are best taken after the system has warmed up After warm up it is recommended that all measurements be taken for one channel before moving on to the next channel This procedure which reduces the number of times re connections are made is preferable to taking a reference for each of the channels and then acquiring a reference for each of the channels For greater stability of polarization and to avoid drift Take a reference on the first channel Acquire the reference for the first channel View the reference in the Chart area to confirm that it is acceptable Fon Move the jumpers if necessary to the next channel for reference and acquisition Process and Display Options Tab Page The Process and Display Options tab page igure 68 allows the user to select both data processing and data display options Analysis Reference Scans Process Display Scan Mode Display Type l Configure Chart Properties C Continuous Single E i iin Ea Axes Unit Averaging Smoothing M ILAverage
66. Restoring Factory Calibration Values rsrrronvrnnnvnrnrnnvrrnnnvennnvennrnnerrrrnrennnnernnernr 117 D000317 Rev G January 2001 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Enabling Wavelength Diagnostics on C Band and L Band SWS Systems 005 118 Changing the INI File on C Band Systems ranrrrnvrnnnvnrnvnnrrrnrnvennnvnrnrererrnnnvennnen 119 Changing the INI File on L Band Systems ccc ccecceeeeeeeeeeeeeeeeeeeseeeseeeeeeetenes 119 Resetting the Number of Points on the Source Optics Module 0ee 119 Calibrating Wavelength for Diagnostics rrrrnvrnnvvnnnvnrnvnnerrnnnvennnvernrerrrrnnnvennnnne 121 Using Wavelength Diagnostics uavsvamaunensnnmsugmnnenjandnnjei 121 Maintaining the System ic c 2ccacccveccts usdenaveredstassceesctandestesteetacasiebeisladeceaiuteadeaastsetins 121 Programming Guide sassasssnssunennnnnnuneunnnnnnnnnunnnnnnnnnunnnnnnnnnunnnnnnnn nann nnnnnn nann annn annann nnmnnn nanenane nn 122 Application Development using the SWS DLLs rsrnnnnrnnnnvnnnvnrerrnrnrennnvnnnrnnerrnrnvennnrernnernn 122 DLL AG FNS CHUN gt RE EE PE seaduaneuansenedcensacs 122 Installing the Dynamic Link Libraries ssrnronvrnnonnvnnnnvrnnonvrnrnnvvnnnrrnnnnrrnnnnrrnnrnnnnn 122 Using the DLE CO mieOne Baer akan 123 Development Environment miuiesmeisesuinmsndemiemiee vrient 123 DLL Function Descriptions janetc cadets escent chan eeee
67. S Execution Mode Heater STABLE Track 5 4 Vdc Power 3 0 dBm Start 1519 5 nm Stop 1676 0 nm Delay Rate Figure 51 SOM Status Display The first line displays the heater status The SOM requires the heater to be STABLE for proper operation The second line shows a track voltage which changes during a scan The remaining parameters are set by the user The Polar variable shows the current polarization state Using SWS Software This section describes the capabilities of and the procedures for using the SWS15100 application software Figure 52 shows a sample directory listing of the SWS15100 directory after the software is installed The executable file is SWS15100 exe The files OWB1 DLL OWB2 DLL and OWB3 DLL are required for program execution Utilities provided include SOMAccess exe and testcount exe These files are described later in this section The Development folder contains the Visual Basic VB and C examples and the SWS15100 DLL which can be used for the development of specialized application packages Fie Ed Ven Go Famke Tods Hep ri evs ad e ee el 3 Bact einer Up Ch Copy Pate Undo Delete Propebes V r Docurentabon ILCachel rs ewe SetupT eniad ex 15100 di 15100 mm 15100 o9g es SW SParell der eon s well bel 4718 IDeA les space T 35B E Hy Comode z Figure 52 Components of SWS15100 Software SWS Program The SWS software can be run from the start menu o
68. SOURCE www artisantg com Do not operate the unit when its covers or panels have been removed Do not interrupt the protective earth grounding Any such action can lead to a potential shock hazard that can result in serious personal injury Do not operate the unit if an interruption to the protective grounding is suspected In this case ensure that the unit remains inoperative Use only the type of fuse specified by the manufacturer as appropriate for this unit Do not use repaired fuses and avoid any situations that can short circuit the fuse Use only the type of power cord supplied with the unit Repairs are to be carried out only by a qualified JDS Uniphase professional Disconnect the power cord from the unit before adding or removing any components to or from the installed system Operating the unit in the presence of flammable gases or fumes is extremely hazardous Do not perform any operating or maintenance procedure that is not described in the user s manual Some of the unit s capacitors can be charged even when the unit is not connected to the power source Safety Symbols The following symbols and messages can be marked on each unit Table 2 Observe all safety instructions that are associated with a symbol Table 2 Safety Symbols Laser safety See the user s manual for instructions on handling and operating the unit safely a See the user s manual for instructions on handling and operating the unit sa
69. SOURCE www artisantg com e To place a marker at a peak select the marker and press the Set Min or Set Max button The selected marker is placed on the appropriate peak This action provides a simple way for example to get the wavelength between two maximum points e To set the marker at the center wavelength press the Set CWL button or press the Set Nearest ITU Channel button The marker is moved to the nearest ITU channel Exiting the Software The group of configuration windows that are open along with the properties for each window is called a workspace To exit the SWS application or move to a different test scenario save the current configuration window setup For example save the window settings layout and analysis settings To save the settings exit the application the system prompts for file names for each of the configuration windows that are open plus a filename for the workspace Preparing for Measurements Before DUTs can be tested the system must be warmed up and zeroed To warm up the SWS before taking measurements turn on all the power switches of the SWS components and allow the components to warm up for a minimum of two hours after which it is recommended that the components be left on at all times Zeroing the System Before taking measurements the system defaults must be set The default configuration compensates for optical losses in the optical path not caused by the DUT Zeroing must be done a minim
70. SWS15100 directory OWB1 DLL located in the SWS15100 directory owes Installing the Dynamic Link Libraries The SWS DLLs are delivered as part of the basic SWS software distribution You will find the DLLs you need to start building your own applications in the directory where you installed the SWS15100 application 122 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Using the DLL Components The development environment includes the header files and a VB module for the SWS DLL From these files it is possible to develop definition files for other WIN32 environments for example Delphi and Borland C Included with the system is a library file for Microsoft Visual C Development Environment The SWS DLL can be used in any WIN32 environment that supports access to external DLL library files Examples are provided on the SWS CD ROM in the Development directory for Visual Basic 4 0 and Visual C console application The SWS DLL system is currently supported only in a single thread environment and is not guaranteed to be thread safe The SWS DLLs are written to support multiple single thread applications that do not compete for the SWS hardware Multiple windows are allowed because they do not execute simultaneously The SWS DLLs do not support multiple threads in a single process When developing applications using the DLLs it can be necessary to
71. Select the Band from the menubar of the SWS software Select either the C or L band from the menu bar You can not choose to do C and L bands simultaneously The default settings require the use of Acetylene 12 gas cell as fitted within the C Band SOM for C Band calibration and the Acetylene 13 cell such as that within the L Band SOM for L Band calibration See end of this section to make changes to these defaults when calibrating with a different gas cell eg Acetylene 13 for C Band Bi Swept Wavelength System SWSConfiguration000 File Mode System Window Help Band gt S band Transmitter Polarizer State gt L Band Insertion Loss Star PDL 5 Bends C L Bands Figure 84 Select the Calibration option from the menubar Enter the Calibration Dialog Box in the SWS software Along the menu bar of the main window of the software select System gt Calibration bl Swept Wavelength System SWSConfiguration000 Eile Mode System Window Help Calibration DWB Info Setup Figure 85 Select the Calibration option from the menubar A window with tabs appears Select the Wavelength Calibration tab to see the following dialog box 102 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Acquire a trace of the gas cell with its pronounced absorption peaks 1 Under the Channel Setup section of th
72. Set Save Analysis Results As saves the measurement data that is in the Analysis area to an external text file The user is prompted for the file name under which the file is saved Print opens a dialog box containing two check boxes that provide the user with the option to print the Analysis Grid the Channel Graph or both After the user checks one or both of these boxes and clicks the OK button the software prints the specified portion s of the screen Print Setup opens the standard Windows Print Setup dialog box that allows modification of several printing parameters Recent File displays a list of the most recently accessed files Exit exits the program Operating and Maintenance Instructions 67 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Mode Menu The Mode Menu shown in Figure 56 allows the user to set the wavelength band the polarization state to expect from the transmitter and the processing mode The default processing mode is PDL For this mode the transmitter polarization state must be 1 Ensure that Polarization Mode 1 is selected on the source optics module File Mode System Help Band b Transmitter Polanzer State gt v Insertion Loss PDL Figure 56 Mode Menu Band selects the type of data to be processed which can be C band L band or a combination of both The selection must match the hardware available Select C band to h
73. Startave fi 520 StopWave fi 630 Custom Wavelength fp Remove Remove All AGG i Cancel OK Figure 73 Selection of Channel or ITU Grid Settings 86 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ITU channels are selected by specifying the channel spacing and the start and stop wavelengths Custom channel wavelengths can be added by entering the wavelength of the new channel and pressing the Add button The list of wavelengths defining the channels can be edited by adding or removing channels To reset to the standard ITU grid press the Set to ITU button Operating and Maintenance Instructions 87 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Logging Analysis Results An additional feature is the ability to log the results of the analysis To enable logging check the Log check box The results of the analysis are logged to the file Analysis txt in the Analysis subdirectory Markers Tab Page Two markers can be placed on any trace and moved around to obtain the wavelength or frequency difference and the power difference between any two points on one or two traces The markers can be set in absolute wavelength or relative to a reference marker To select the reference marker check the Reference Marker check box on the Markers tab page Figure 74
74. Stionable ENABle STATus QUEStionable ENABle lt space gt lt NRf gt Function Sets the bits in the questionable enable register The NRf value is rounded to the nearest integer and converted to a binary number The bits of the register are set to match the bit values of the binary number Example STATUS QUESTIONABLE ENABLE 33 sets bit 0 and bit 5 of the questionable enable register to 1 STATus QUEStionable ENABle STATus QUEStionable ENABle Function Returns the contents of the questionable event enable register as an integer that when converted to a binary number represents the bit values of the register STAT QUES ENAB 23 ENAB returns 23 STATus QUEStionable EVENT STATus QUEStionable EVENT Function Returns the contents of the questionable event register as an integer that when converted to a binary number represents the bit values of the register Programming Guide 181 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com STAT QUES EVENT STATus PRESet STATus PRESet Function Presets all the enable and transition registers in the questionable and operation structures to the following settings e All bits in the ENABle registers are set to 0 e All bits in the positive transition registers are set to 1 e All bits in the negative transition registers are set to 0 STAT PRES SYSTem ERRor Syntax SYSTem ERRor Function Re
75. TH that has the header START as one of the optional headers in that branch of the tree Table 21 shows the header tree structure Commands must adhere to the following rules e Parameters are numerical values expressions channel lists and other data that are entered after a header They must be separated from each other by a comma and from the header by a space e Multiple commands can be entered in a single message separated by semicolons e If the program header is a query it must end with a question mark 2 e The program header command line must be terminated using a terminator The terminator can be lt LF gt the linefeed character or EOL in GPIB The terminating sequence lt LF gt does 172 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com not always appear in the sample program messages provided in this section but it is implied e The query form of a command must end with a question mark e Acommand can be entered in either uppercase characters or lowercase characters Command Paths To use a command in the command tree the SOM must know the full path to the command If the command is the first command in the program message the command header must contain the full path to the command Subsequent commands in the same program message are automatically referenced in the same path as the previous command unless the command
76. TY WHATSOEVER FOR ANY CLAIMS ARISING THEREFROM 5 LIMITATION OF LIABILITY 5 1 IN NO EVENT SHALL THE TOTAL COLLECTIVE LIABILITY OF JDS UNIPHASE ITS EMPLOYEES DIRECTORS OFFICERS OR AGENTS FOR ALL CLAIMS REGARDLESS OF VALUE OR NATURE INCLUDING WITHOUT LIMITATION INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR UNAUTHORIZED ACCESS TO DATA EXCEED COLLECTIVELY THE AMOUNT PAID UNDER THIS AGREEMENT FOR SOFTWARE THAT IS THE SUBJECT MATTER OF THE CLAIM NO PARTY SHALL BE LIABLE FOR ANY INDIRECT SPECIAL INCIDENTIAL EXEMPLARY OR CONSEQUENTIAL DAMAGES WHATSOEVER WHETHER OR NOT SUCH DAMAGES ARE FORESEEABLE AND OR THE PARTY HAD BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES 5 2 The foregoing provision limiting the liability of JDS Uniphase s employees agents officers and directors shall be deemed to be a trust provision and shall be enforceable by such employees agents officers and directors as trust beneficiaries 6 TERMINATION Without prejudice to any other rights JDS Uniphase may terminate this EULA if you fail to comply with the terms of this EULA become bankrupt or insolvent or fail to pay for the SOFTWARE when due Upon termination of this EULA you shall return or destroy all copies of the SOFTWARE 7 OWNERSHIP All rights title and interest in and to the SOFTWARE other than those expressly granted to you herein shall remain vested in JDS Uniphase or its third party suppliers All copyright and other proprietary notices and legen
77. Uniphase representative 5310 The Zero Loss of a certain Polarization State of a specified channel is missing 5330 Dark Voltage Measurement error Too much light in the specified detector 220 Reference The laser is out of calibration There is an error in wavelength measurement The reference for the channel has not been taken The detector is not capped See the user s manual for the tunable laser source to recalibrate the laser Then perform a wavelength calibration see the Error Reference source not found section Cycle the power on and off on the tunable laser source by turning off the unit using its key waiting at least 30 seconds after the power is off and turning the unit back on using the key Perform a zero loss reference measurement Cap the detector to ensure that all light to the detector is blocked Try again If error persists call the local JDS Uniphase representative or the service hotline Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com How the SWS Calculates Values A value of n indicates an integer a value of x indicates a real number Threshold Power Threshold power is set by the user All calculations are performed at x dB or the equivalent fraction below the baseline or the peak or x dB or the equivalent fraction above the baseline or the peak as specified by the user The baseline is comput
78. VIEW default directory Move to WinSysDir When testing or running applications that are developed using the DLLs a number of binary files are created in subdirectories Do not delete any of these files or directories To allow the DLL functions to access all the correct files specify the path to the root directory when calling the function initSWS Precautions e Allocate an array of exactly 128 short integers 16 bit for the channel list e Allocate enough memory for the wavelength and insertion loss data arrays 124 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com DLL Function Descriptions The functions contained in the DLLs are listed in the following sections For each function the calling sequence and parameters are provided for both C and Visual Basic VB In addition a short description of the function s purpose is provided Initializing and Referencing the SWS The following functions are used to initialize and reference the SWS Note that a separate getPDLReference function is used to get zero loss references in PDL mode That function is documented under the section PDL Functions initSWS Initializes the DLL sub system getDarkVoltage Collects the dark voltage trace from the hardware IsDarkVoltage Checks if a dark voltage measurement has been performed for the Done specified channel GetAverageDark Finds average power measured during
79. XPRESSLY DISCLAIMS ALL OTHER WARRANTIES CONDITIONS AND REPRESENTATIONS WHETHER EXPRESS IMPLIED ORAL OR STATUTORY INCLUDING WITHOUT LIMITATION WARRANTIES CONDITIONS OR REPRESENTATIONS OF WORKMANSHIP MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE DURABILITY THAT THE SOFTWARE WILL BE FREE FROM INFRINGEMENT OR VIOLATION OF ANY RIGHTS INCLUDING INTELLECTUAL PROPERTY RIGHTS OF THIRD PARTIES OR THAT THE OPERATION OF THE SOFTWARE WILL BE ERROR FREE 4 3 JDS Uniphase products are intended for standard commercial uses They are not intended for use in any High Risk Activity as described in this paragraph You acknowledge and agree that the products supplied hereunder are not fault tolerant and are not designed manufactured or intended for use or resale in Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com or for hazardous environments or applications requiring fail safe performance such as in the operation of nuclear facilities aircraft navigation or communication systems air traffic control direct life support machines or weapons systems in which the failure of products could lead directly to death personal injury or severe physical or environmental damage all of which are typical but not limited to examples of High Risk Activity JDS UNIPHASE AND ITS SUPPLIERS EXPRESSLY DISCLAIM ANY EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES AND EXPRESSLY DISCLAIM ANY LIABILI
80. ace gt lt NRf gt Function Causes the source optics module to changes its internal rate setting to the specified value This value is used to set the rate in seconds for a laser sweep SOUR SWEEP DELAY 1 5 SOURce SWEEP TIME SOUR SWEEP TIME Function Causes the source optics module to output its internal variable used to control the laser s sweep rate SOUR SWEEP TIME returns 1 5 SOURce SWEEP MODE SOUR SWEEP MODE lt space gt lt NRf gt Function Causes the source optics module to change its internal polarization mode setting to the specified value This value is used to determine the polarization mode sequence SOUR SWEEP MODE 0 SOURce SWEEP MODE SOUR SWEEP MODE Function Causes the source optics module to output its internal variable used to control the laser s polarization mode 184 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com SOUR SWEEP MODE SOURce POWER LEVEL SOUR POWER LEVEL lt space gt lt NRf gt Function Causes the source optics module to changes its internal power setting to the specified value This value is used to set the power output for the laser SOUR POWER LEVEL 3 0 SOURce POWER LEVEL SOUR POWER LEVEL Function Causes the source optics module to output its internal variable used to control the laser s output power level SOUR SWEEP TIME returns 3 0 a
81. alk flatness and isolation are obtained by subsequent data analysis In addition the user can select standard ITU channels or define frequency bands within which the SWS software computes relevant parameters including center wavelength passband bandwidth crosstalk and flatness In PDL mode the SWS software also computes the average minimum and maximum insertion losses over all polarizations and polarization dependent loss any two of which can be selected and plotted at one time The standard SWS shown in Figure 1 with the optional polarization controller and a device under test DUT has six main components Transmitter which includes the source optics module and the tunable laser source Transmitter cabinet Receiver with one control module and one or more detector modules Data acquisition board or parallel port interface Software User supplied computer Figure 1 Swept Wavelength System with Polarization Controller and Device Under Test 10 General Information and Specifications Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Transmitter and Cabinet The transmitter consists of a tunable laser source and a source optics module SOM The tunable laser source provides the measurement signal for the DUT It is continuously tunable with no mode hops Its default operational mode is continuously tuning 1520 to 1570 nm at 20 nm s for the C band version and 1541
82. all the local JDS Uniphase representative or the service hotline Check receiver connections e Cycle the power off and on to the receiver e The SWS main window or the main menu with a blank window appears If the problem persists call the local JDS Uniphase representative or the service hotline table continued Reference 191 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com olem semen 7 When SWS application is Check all system modules and connections ae r da ao e Verify that the source optics module is scanning m tim i l ae ee e Verify that the tunable laser source is scanning displayed e Check the ribbon connection at the back of the receiver chassis If it is plugged in properly e Unplug it e Verify that none of the connector pins are damaged e Reconnect the ribbon cable e Restart the SWS application If the problem persists e Verify that the SOM is scanning e Verify that the tunable laser source is scanning e With a power meter measure the maximum power going into the receiver control module The correct power is gt 11 dBm e Disconnect the fiber from the Signal Cond Out port e With a power meter measure the maximum power going into the receiver control module The correct power is gt 11 dBm e If the power is not gt 11 dBm connect the receiver to another SOM output port e Measure the maximum power going in
83. allel Port Interface Troubleshooting cecceeecceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeseeeeeeneeeeeneeeeeaas 207 Recording SWS Performance srrannvnnnvnnrrrnnnvennnvnnnvnnnnnnnnvennnvnnnrenernnnnnennnnnrnrenernnnnrennnene 209 SWS Performance Checklist u messene ete 210 Ero Messages EN arendal aeee 215 Error Messages from the Tunable Laser SOUrCe mmrrrnrnvrrnvvennvnnrrrnrnvennnvnrnnnrnr 215 Error Messages from the Source Optics Module rrrrnnnvrnnvvnnnvnnvrrnnnvennnvnrnnnrnr 216 Error Messages from the SomarG Luasvasaaapueenmejandmujhundnn 217 Detailed Error Messages Luvvrsensseneruendusjnievbe iianndnd de sderneesstereses 218 How the SWS Calculates Values rrrnnnrnnnrrnnnvennnvnnnvnnerrnrnvennnvnnnrnnernrnnvennnnennrererrennvennnen 221 D000317 Rev G January 2001 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Threshold NP OW CM cenn AERE 221 Wavelength at the MAMUT Lukas eies niejudd 221 MANILA PONT acto ce A oe Ses ee ect steecep haces ee aea EENE SEEE see EER REE asi EErEE EE 221 Wavelength at the Maximum mannnnnonnvnnnnvnnnenvvnnnnvnnnnnvnnnnnvnnnnnvensrrrennsrrnnssrrnsnnnnen 221 MP rv 221 Center Wavelength using a Threshold Relative to the Baseline rrnrrrrnrnrnnnr 221 Center Wavelength using a Threshold Relative to the Peak c ccccseecsseees 222 Power at the Center Wavelength rurnrnnnrrnnn venn nvennvnnnrnnnn venn nvennvnnrrrrnn
84. amming C example 159 Visual Basic example 159 SWS Error messages 214 SWS15100 64 Changing the INI file 118 Detailed error messages 215 Directories and files 158 Exiting 88 Parameter values 82 Program 64 Saving data 81 System menu 69 User interface main menu 65 Using SWS Software 64 Window menu 72 SOM See Source optics module Source optics module 11 25 Adapters 40 Checking parameters 187 Command formats 170 Rules 170 Command paths 171 Error messages 213 External control 170 Front panel 55 IEEE 488 2 common commands 173 Installing 26 41 Operating conditions 63 Optional commands 171 Output ports 29 52 Parameter types 172 Programming 173 Rear panel 55 Resetting parameters 118 SCPI Command tree 173 Common commands 175 SOM commanos 173 Status commands 178 User commands 180 Setting parameters 59 Changing values 61 Display option 63 Main menu 60 Manual menu 61 Manual mode 62 Power up screen 59 Remote option 62 Setup menu 60 Status display 63 Specifications 17 Start up 28 Specifications 15 Optical 15 Receiver chassis 20 Index 233 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Source optics module 17 Transmitter cabinet 19 Tunable laser source 18 Status Analysis area 76 Average done count 76 Last polarization state 76 Polarization done list 76 Progress bar 76 Status 76 Swept Wavelen
85. amples REE EE NE ERE eter ree 160 Contents TUR Muse nec re nen en etree er ee rer unre 160 Visual Basic Programming Example c cceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeneeeeeeeeeeneees 161 C Programming Example castes sccorarecnctasmstasenentsaud isin nevnmtscuaineninGeeraone bias savne 161 Programming FONT EH peers ener 162 External Control of the Source Optics Module rrrnrnnrrrnnn venn nvnnnvnnerrnnnvvnnnvnnnvenrrrnnnvennnene 172 Command Formats EE nnmnnn enee 172 Command Paths wercsccssctadustenasacisedscseadee sacsragnideisaesseusetnisesdeasadesatsadbiheaisatasedninssids 173 Optional Commands nes niisieerne e aa a E 173 Parameter Types areas 174 Programming the Source Optics Module rrnrrnnnvnnnvnnnrrnnnvvnnnvnnnvnnerrnnnvennnvnrnrnnerrennrennnen 175 SCPI CONMIGO EE EE hts sag thesis 175 SCPI SOMO Fy ON MM ANNES gies kiriin segue E EE 177 SCPI Status Commands 2edeimiinmrmbemiisinnini nsvvhu bekle kaatnedded 180 User COMMANGS scincotaionnndn ancien nanan neae 182 Referente Lee 189 les 6 0 1 TO OMG RE nan ancuasain ee amusdgci stares aencaeesmne eae 189 Troubleshooting FOM 4assesrarelesoee eee 199 Testingthe SETE 200 Testing the Source Optics Module rrrrrnnvrnnnvennvnnnrrnnnvennnvennvenerrnrnvennnnernnnnrrneenne 202 Testing for System INQIS Caisse c5 gai scc shea dhnahiateehectteencabeate gets te nAGtaseiodiecddescelen 205 Testing Source Optics Module Power LeVelIS cc cccsssecsssesssteesseeeeesseeeessees 206 Par
86. are requirements 43 IEEE 488 2 common commands 173 IL See Insertion loss Insertion loss Large 191 Measuring 91 94 Measuring through the SOM 52 Mode 69 PDL mode 220 221 Plotting 79 Inspecting the equipment 21 Installation 25 Additional Detector modules 38 Receiver chassis 35 Compact two channel receiver 41 Control module 30 41 Data acquisition board 41 Detector adapter 39 Detector module 30 Dynamic Link Library 121 Receiver chassis 29 Software 43 44 Source optics module 26 41 Transmitter 25 Tunable laser source 26 Universal connector adapter 39 ITU channel Definition 3 Marking 88 JDS Uniphase Address 9 Customer support 9 License agreement 1 Returning equipment 23 Label Safety 6 Laser See Tunable laser source Laser specifications 5 Laser warnings 6 L band 11 68 Logging results 87 Loss in PDL mode 220 Maintenance 120 Mandrel terminator 97 Markers Placing markers 87 Step size 87 Tab page 87 Reference marker 87 Mating sleeve 89 91 Measurement See also Characterizing specific devices Bandwidth 222 Crosstalk 225 Dark voltage 90 Flatness 224 Insertion loss 91 Measuring parameters 222 Passband 223 Preparing for measurements 88 Warm up 88 Index 231 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Zeroing 88 Saving values 88 Zero loss 91 Mode menu 68 Band 68 IL
87. array within a specified wavelength range Call the function after obtaining pPowData array through a call to the getILTrace function The refpeak parameter must be specified by the caller C prototype int getFlatness double pLamData double pPowData unsigned short uhDataSize double dStartWave double dStopWave double pdPowFlatness VB prototype Declare Function getLocalPassBand Lib SWS15100 ByRef pLamData As Double ByRef pPowData As Double ByVal uhDataSize By Val dStart Wave As Double Byval dStopWave As Double ByRef pdPowFlatness As Double As Long Input double pLamData The pLamData array stores wavelength points of the trace double pPowData The pPowData array stores IL power level dB scale points Each point from the pPowData array has a corresponding point in the pLamData array unsigned short dataSize This is the size of arrays pLamData and pPowData allocated by the user This is the size of the acquired trace retrieved by the user using the function getDataSize double dStartWave Specifies the wavelength at which to start processing double dStopWave Specifies the wavelength at which to stop processing Output unsigned short pdPowFlatness This is the computed flatness in the wavelength range specified Programming Guide 151 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Return Value When there is no error the function return
88. ast parameter 0 Call processPDL with channel list This computes al PDL ILMax IL Min and ILAve data See Flowchart PROCESS PDL TRACES Figure 102 PDL Mode Processing Programming Guide 169 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com START SELECT CHANNEL Yes J VOLTAGE gt Yes No SET UP FOR DARK VOLTAGE GET DARK VOLTAGE GET PDL REFERENCES PLL REQUIRED CHANNELS DONE No No Call isZeroLossDone to determine if zero loss measurement is necessary If the return is TRUE get the time when the measurement was taken lt is recommended that a reference be done at least once a day Dark Voltage measurements are made on initial system set up lt is recommended that dark voltage measurement be made at least once day Prompt user to cap or terminate the channel so that no light goes to the detector Follow steps in flowchart ACQUIRE TRACE Next call getDarkVoltage The routine performs all computations necessary and stores the new dark voltage parameter Verify that the output of the control module is jumpered to the specified channel Call getPDLReferences to get the reference for all polarization states Figure 103 Zero Loss Data in PDL Mode 170 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ST
89. ating Passband eosvenrvnnnvvnnnvnrnvonerrnnnvennnvnrnvenerrnnnvennnvernrenernnsnnesnnnennnenerntenn 226 Figure 116 Calculating Flatness cssicsccccccasiccaatheiscttatiassedsdeesdedtaxtslesissdeteeesleedstnsselvaedinneens 227 Figure 117 Calculating Right Crosstalk casictassuictracanieraisderemese uteri an adadel ut uemenduateeae 228 For sales and service information contact JDS Uniphase or your local representative JDS Uniphase Corporation 570 West Hunt Club Road Nepean Ontario Canada K2G 5W8 Phone 613 727 1303 Fax 613 727 8284 January 2001 D000317 Rev G Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com E mail sales jdsunph com Website http www jdsunph com Customer support is available seven days a week 24 hours a day SWS Hotline in North America 1 800 367 7029 JDS Uniphase International Technical Support 1 613 727 1304 extension 4999 E mail non emergency support ca jdsunph com D000317 Rev G January 2001 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com rtisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com JDS Uniphase Corporation Swept Wavelength System Software For WINDOWS Version See User s Manual CD ROM Label JDS UNIPHASE CORPORATION END USER LICENSE AGREEMENT IMPORTANT READ CAREFULLY This End User License Agreement EULA
90. ave only a C band SOM L band to have only an L band SOM and C L band if both SOMs and a Dual Band Selector Switch Module are installed Transmitter Polarizer State for PDL measurements the default is four PDL states S1 to S4 If a polarization controller is not installed select mode 0 which is SO The transmitter polarization states that are available with a polarization controller as a function of the selected mode are listed in Table 12 The individual polarization states are defined in Table 13 Table 12 Polarization Modes Table 13 Polarization States Circular polarization at the output of the polarization controller If there is no controller the polarization is linear 90 Linear 0 polarization Linear 90 polarization Circular polarization with 3 dB loss 68 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Linear 45 polarization Insertion Loss puts the SWS in insertion loss mode for IL measurements When IL mode is selected the polarization mode can also be selected PDL puts the SWS in PDL mode which is the default mode for PDL measurements In PDL mode the polarization mode is set to M1 The mode cannot be changed by the user System Menu Figure 57 shows the System menu Fila Mode System Help Calibration OWB Info Setup Figure 57 System Menu The user is giv
91. ble ByRef pCenPow As Double As Long Input double pLamData The pLamData array stores the wavelength for each data point in the trace double pPowData The pPowData array stores the measured power levels dB scale for each point in the trace Each point from the pPowData array has a corresponding point in the pLamData array unsigned short dataSize This is the size of arrays pLamData and pPowData allocated by the user This is the size of the acquired trace retrieved by the user with the function getDataSize unsigned short refpeak This is an integer type that has the following set of values MAX PEAK REF 0 MIN PEAK REF 1 double interLevel The interpolation level is the height from the peak where the bandwidth is Programming Guide 137 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com calculated unsigned short baseref This is Boolean For minimum peaks the baseref is 1 and the bandwidth of the peak is calculated from the base of the peak For maximum peaks the baseref is 0 and the bandwidth is calculated from the peak double pCenLam pCenLam stores the center wavelength of the peak double pCenPow pCenPow stores the center power of the peak corresponding to center wavelength Return Value When there is no error the function returns zero When there is an error the return value contains the error number writeLED Purpose The writeLED f
92. ble ByVal uhlTUunits ByRef pdlTUGrid As Double As Long Input unsigned short dITUSpacelnGHz This is the spacing of ITU channels in GHz for example 50 or 100 GHz 152 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com double dStartWave Specifies the start wavelength or frequency double dStopWave Specifies the stop wavelength or frequency unsigned short uhITUunits This is either UNITS NM or UNITS GHZ This tells the function how to interpret the start and stop wavelength or frequency Output double pdITUGrid The ITUGrid in terms of wavelengths that mark the start of a new ITU channel are returned in the array The values returned are in the units specified by uhlTUunits Return Value When there is no error the function returns zero When there is an error the return value contains the error number getCrossTalk Description The getCrossTalk function computes the power levels required to compute the crosstalk Call the function after obtaining pPowData array through a call to the getILTrace function C prototype int getCrossTalk double adLamData double adPowData unsigned short uhDataSize double dRefWave unsigned short uhListSize double pdLamOutWaveList double dBandWidth double pdinPowPeak double pdLeftOutPower double pdRightOutPower double pdTotalOutPower VB prototype Declare Function getCrossTalk Lib SWS1510
93. ble laser source has been acclimatized outside the shipping carton for one to two hours 2 Turn the switch at the rear of the tunable laser source laser to I on 28 Getting Started Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com 3 Turn on the key on the front of the tunable laser source The unit beeps and the front panel lights up 4 Cycle the power on the tunable laser source turn off the unit using its key wait at least 30 seconds after the power is off and turn the unit on again using the key 5 Turn the power switch at the back of the source optics module to I on The front panel lights up the version number of the firmware is displayed and the main menu is displayed on the front panel 6 A warm up time of two hours is required before the system is ready for measurements It is recommended that the system be left on at all times For information on using the tunable laser source see the SW515101 and SWS16101 Tunable Laser Source User s Manual document SD000319 Replacing Output Ports on the Source Optics Module The SWS is shipped with the specified number of output ports installed The number of receivers connected to a transmitter can be increased to increase the number of measurement stations This modification requires changing the output ports on the front of the source optics module to a maximum of four outputs The standard SWS package includes o
94. calibration There are overlapping scans or a hardware error in the receiver detector module The data collected does not correspond to the expected polarization A polarization state is not available Diagnostics are not available on the system Diagnostics are not initialized Increase the delay between scans using the SOM front panel If problem persists return the detector module to JDS Uniphase for repair Check that the source optics module is set to the same polarization state as the SWS application software Verify that the software version number is 2 1 0 or greater If it is not call the local JDS Uniphase representative or the service hotline Verify that the source optics module is set to provide the requested polarization state Check that the polarization controller if installed is connected properly If there is no PDL option verify that the SWS software is in Insertion Loss mode Mode menu Call the local JDS Uniphase representative to have the SOM upgraded Disable Diagnostics in the SWS15100 INI file Perform wavelength calibration table continued Reference 219 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com it Gi FE Laser is out of calibration Recalibrate the laser and then perform wavelength calibration 5220 Error in wavelength measurement If the error persists call your local JDS
95. can be connected to a computer using a standard RS232 extension cable with a DB9 M connector at one end to the SOM RS232 Control port and a DB 9F connector at the other to the computer If communication cannot be established with this cable substitute it with a null modem cable e f GPIB control is used connect the GPIB port to the GPIB port of the controller The default GPIB address of the SOM is 7 but the address can be changed using the REMOTE button on the SOM front panel Command Formats The common commands used to control or query the SOM conform to ANSI IEEE 488 2 standard syntax Common commands applicable to the SOM are listed in the Programming the Source Optics Module section All SOM specific commands conform to the Standard Commands for Programmable Instruments SCPI command language version 1995 0 also listed in the same section All commands to the SOM consist of a command header a variable number of parameters and a terminator Command headers are specific commands keywords recognizable by SOM For example SOURCE WAVELENGTH START is a keyword Each command keyword header has a long and short form either of which can be used in any command The commands described in Table 20 and Table 21 in the Programming the Source Optics Module section show the short form of a command in uppercase Headers are arranged in a tree with nodes In the previous example SOURCE is a node below that node is another node WAVELENG
96. ce does not exceed a prescribed level that the equipment be immune to a prescribed level of ambient level of interference that the equipment be protected against electrostatic discharges and that the equipment be immune to all electrical shock wave disturbances As of 1997 measures have been added to test for fire hazard electric shock hazard and also external exposure to other forms of energy The requirements specified by directive 89 336 EEC are as follows CE compliance requires that the manufacturer or its authorized representative established within the Community affix the EC conformity mark to the apparatus or else to the packaging instructions for use or guarantee certificate The EC conformity mark shall consist of the letters CE as specified and the figures of the year in which the mark was affixed This mark should where appropriate be accompanied by the distinctive letters used by the notified body issuing the EC type examination certificate Where the apparatus is the subject of other Directives providing for the EC conformity mark the affixing of the EC mark shall also indicate conformity with the relevant requirements of those other Directives FDA CDRH Compliance Under the US FDA CDRH the unit complies with the Code of Federal Regulations CFR Title 21 Subchapter J which pertains to laser safety and labeling See http www fda gov cdrh radhith cfr 21cfr1000 1050 pdf for more information 8 Safety Artisan Techno
97. ce for that specified polarization state and channel has been performed C prototype int getAverageZeroLossPower unsigned short chID short hPolar double dAvePower VB prototype Declare Function getAverageZeroLossPower Lib SWS15100 ByVal chID ByVal hPolar ByRef dAvePower As Double As Long Input unsigned short chID This is the channel number short hPolar This is the polarization needed for the average zero loss power Output double dAvePower This is the average zero loss power Return Value If there is no error the return value is 0 If there is an error the return value contains the error number 144 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com getLocalPeakPower Description The getlocalPeakPower function retrieves the power of the largest peak that is contained in the pPowData power array within a specified wavelength range Call the function after obtaining pPowData array through a call to the getILTrace function The refpeak parameter must be specified by the caller C prototype int getLocalPeakPower double pLamData double pPowData unsigned short dataSize double dStartWave double dStopWave unsigned short refpeak unsigned short peakIndex double pPowPeak double pLamPeak VB prototype Declare Function getLocalPeakPower Lib SWS15100 ByRef pLamData As Double ByRef pPowData As Double ByVal dataSize B
98. change the second parameter to the value of MaxPoints in the SWS15100 INI file Change the second parameter to the path for the sample program The directory is used as the root directory for creating all associated SWS files and directories Recompile the program using any C compiler If any compiler other than a Microsoft compiler such as Borland C or Borland C is being used for development create a library compatible with the development system Link the program and run it If problems are experienced loading the DLLs copy the DLLs to the Windows System or the WinNT System32 directory Programming Guide 161 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Programming Flowcharts To develop applications using the DLLs refer to the VB and C code examples The examples show how to call the low level routines that access the hardware The following flowcharts Figure 96 to Figure 104 show the steps required to acquire and process data in insertion loss and PDL modes The flowcharts are Figure 96 SWS Data Collection and Processing Figure 97 Insertion Loss Mode Processing Figure 98 Zero Loss Data in Insertion Loss Mode Figure 99 Acquire Trace Figure 100 Get Insertion Loss Figure 101 Process Insertion Loss Trace Figure 102 PDL Mode Processing Figure 103 Zero Loss Data in PDL Mode Figure 104 Additional PDL Processing 162 Programming Guide Art
99. component to the Swept Wavelength System SWS It enables switching between two transmitters so that data can be Getting Started 31 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com collected over a wider wavelength range This section explains how to install the DBSSM in the SWS and how to use the switch for dual transmitter operation Installing the Dual Band Selector Switch Module DBSSM Figure 8 below shows the front panel of the DBSSM Figure 8 Front panel of the Dual Band Selector Switch Module DBSSM The DBSSM has two input connectors marked TX1 and TX2 and one output connector All three are FC APC connectors The LED display at the top is used as an indicator to indicate the switch number and the transmitter currently selected An FC APC FC APC connector is supplied with the DBSSM Caution The modules are not hot swappable Turn off the power to the receiver chassis before installing or removing a module The recommended location for the DBSSM is the last slot that is to the right of the detector modules in the last chassis Tighten the screws at the top and the bottom 32 Getting Started Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com After the module is physically in place connect one transmitter normally the C band to the port marked TX1 The connector must be FC APC C
100. controller Verify the connections Verify the optical connections The black PM fiber goes from the Signal Cond Out port of the SOM to the IN port on the polarization controller The FC PC FC PC jumper goes from the OUT port on the polarization controller to the Signal Cond In port on the SOM table continued Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com olem semen While making PDL If the problem persists measurements the PDL e Take another reference shows only noise at all A wavelengths Acquire a new trace If the problem persists contact the local JDS Uniphase representative or the service hotline Calibration Completed is Verify re calibration not returned after the Re Open the SWS15100 INI file in the C Windows or Calibrate button is pressed C WinNT directory during performance of wavelength calibration Verify that the wavelengths of the two peaks are entered correctly Verify that the values of Threshold1 and Threshold2 are low enough to ensure that the peaks can be found If the values are not low enough edit the SWS15100 INI file Restart the SWS software Perform the wavelength calibration again If the problem persists call the local JDS Uniphase representative or the service hotline Troubleshooting Flowcharts The flowcharts in this section Figure 105 to Figure 111 show the logical steps to use when
101. ction and control capabilities The menu items are New Configuration Window creates a new configuration window with a blank chart blank analysis window and blank channel list Open a new configuration window when the SWS window is blank or when a new window is needed in additional to those already opened Each configuration window can handle any number of channels and various processing and analysis modes Open Configuration Window opens a previously saved configuration window All previously saved settings are used Close Configuration Window closes the current configuration window The software prompts the user to save the configuration window file If the file is saved the user is prompted for the file name under which the file is to be saved The selected channels data acquisition mode processing mode analysis settings display options and data storage options are saved Open Workspace opens a previously saved test configuration The workspace comprises all windows needed to measure a particular type of device Save Workspace saves the settings of the current test configuration with the name previously assigned When a workspace is saved all the configuration windows with their associated parameters are saved as part of the workspace Save Workspace As saves the settings of the current test configuration with a new user specified name Open Data Set opens a previously saved set of measurement data and recreates t
102. ctions 111 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com L Band or C Band Calibration Using the H C N Cell The following figure shows the absorption lines when using an H C N hydrogen cyanide cell for calibration 3 0 1541 753 nm 1543 114 nm A 4 00 1 5 00 1520 406 nm 1561 634 nm p 1547 435 nm 3 600 1529 238 nm i 1530 756 am 1555 435 nm 7 00 1540 431 nen 1552 116 nm 1532 KG rm 156 231 am 1549 730 em 6 00 1534 416 am 1547 435 nm 1836 100 nm 1537 907 am 00 1520 000 1530 000 1540 000 1550 000 1550 000 1570 000 Wavelength nm Figure 93 Absorption Lines of H C N Cell 112 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Use the following table to record the wavelengths of the absorption lines when using the H C N acetylene cell for calibration Table 16 Wavelengths of Absorption Lines for H 3C N Cell Center Wavelength Difference Center Wavelength Difference Wavelength Reading nm within Wavelength Reading nm within nm 0 003 nm nm 0 003 nm R 25 1528 054 1543 1148 1528 486 2 1543 809 1528 927 13 1544 515 1529 376 1545 231 2 3 5 2 24 23 22 1 a re 150 190 EN tk N 00 7 O C PG a Se a a a a ooo o O AE ae o o a S N AE a i a pg p10 19970 gt
103. culated by finding the difference in power between the two points where the line crosses the band edges The user defines whether to use passband bandwidth or some other numerical range Crosstalk Crosstalk Left Crosstalk or Right Crosstalk is the difference between the minimum power within the reference passband and the maximum power in the adjacent left or right channel Cumulative Crosstalk TXT Cumulative or total crosstalk is the difference between the minimum power within a passband around the reference channel and the sum of the peak powers at all the other channels 224 Reference Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Measuring Parameters The following figures show how to measure and calculate bandwidth passband flatness and crosstalk Figure 114 shows how to measure bandwidth dB Bandwidth The threshold is measured with respect to the peak power level The bandwidth is measured at that threshold level The center wavelength is measured halfway between the points a and b o 1 4 b l j gt gt og ag 85 4 3 Za Bandwidth 34B Threshold Figure 114 Calculating Bandwidth Reference 225 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Figure 115 shows how to measure passband Passband
104. detector module into the slot Ensure that the module locks into place 4 Securely fasten the top and bottom screws to ensure proper grounding of the detector module 5 Turn on the power 6 Test the receiver after the software is installed Attaching Detector Adapters The DUT or its jumper or both determine which adapter is used to connect the DUT to a detector module of the receiver chassis The standard SWS system includes two FC detector adapters AC101 Each new detector module is supplied with two blank detector caps and the correct universal connector adapters The blank detector caps are attached for shipping purposes and can also be used when making dark voltage measurements Unscrew the detector caps and replace them with the appropriate adapter for the DUT and its jumper Table 4 in the Specifications section lists the adapters that can be ordered from JDS Uniphase To attach a DUT to a detector module 1 Unscrew and remove blank detector caps on the front of the detector module 2 Select the appropriate adapters and attach them to the detector module 3 Attach the DUT to the detector module Attaching Universal Connector Adapters The source optics module is supplied with standard FC PC universal connectors The control module on the receiver is supplied with two FC APC universal connectors These are the only connectors that can be used on the source optics module and the control module and they are not interchangeab
105. device for insertion losses between 0 and 40 dB The specifications for PDL measurement are given the Specifications section PDL measurements in the SWS are made using the Mueller matrix method The details and theory of measurement are found in the SW515104 Four State Polarization Controller User s Manual document SD000327 Other useful parameters are also calculated with the PDL measurement The parameters are the minimum IL over all polarization states the maximum IL over all polarization states and the average IL All are available at the same wavelength resolution as IL measurements To perform PDL measurements 1 Set up the device as if for IL measurements and follow the instructions in the Using SWS Software section 2 Set the SOM to polarization mode 1 as explained in the Setting Source Optics Module Parameters section 3 Connect the four state polarization controller as explained in the Four State Polarization Controller User s Manual 4 Select PDL in the Mode menu of the software 5 Select the channels to process 6 Perform a zero loss reference scan for each of the selected channels 7 Connect the device 8 Select the types of traces to be displayed from average IL minimum IL maximum IL and PDL Select any two types for display at one time The first display uses the primary y axis on the left while the second uses the secondary y axis on the right 9 Inthe SWS application select the type of analysis 1
106. ds which are placed on all SOFTWARE supplied by JDS Uniphase you agree to maintain and reproduce on any authorized copies of the SOFTWARE made by you 8 GENERAL 8 1 This Agreement constitutes the entire agreement between JDS Uniphase and you and supersedes all prior oral and written communications All amendments shall be in writing and signed by authorized representatives of both parties 8 2 If any provision of this Agreement is held to be invalid illegal or unenforceable it shall be severed and the remaining provisions shall continue in full force and effect 8 3 JDS Uniphase shall have the right at its own expense and upon reasonable written notice to you to periodically inspect your premises and such documents as it may reasonably require for the exclusive purpose of verifying your compliance with its obligations under this Agreement 8 4 If the SOFTWARE is being acquired by or on behalf of any unit or agency of the United States Government the following provision shall apply If the SOFTWARE is supplied to the Department of Defense it shall be classified as Commercial Computer Software and the United States Government is acquiring only restricted rights in the SOFTWARE as defined in DFARS 227 7202 1 a and 227 7202 3 a or equivalent If the SOFTWARE is supplied to any other unit or agency of the United States Government rights will be defined in Clause 52 227 19 c 2 of the FAR or if acquired by NASA Clause 18 52 227 86 d of t
107. dule Figure 107 Testing the SOM 202 Reference Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Testing the Receiver The flowcharts in Figure 108 and Figure 109 show the steps to follow when troubleshooting the receiver Figure 108 Testing the Receiver first part Reference 203 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Figure 109 Testing the Receiver continued 204 Reference Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Testing for System Noise The flowchart in Figure 110 shows the steps to follow when troubleshooting for system noise START Y JUMPER CM TO A CHANNEL PERFORM A REFERENCE IN IL MODE Y SET SOFTWARE TO CONTINUOUS ACQUISITION h OBSERVE TRACE FOR ABOUT 10 SCANS Y DO AE No gt POWER TEST 0 025 dB Yes ee Jr END Figure 110 Testing for System Noise Reference 205 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Testing Source Optics Module Power Levels The flowchart in Figure 111 shows the steps to follow when troubleshooting for source optics module power Figure 111 Testing for SOM Power 206 Reference Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE ww
108. e Folder used to store workspace data deisreg isr System utility isreg32 dl System utility OWB1 dlH Folder reserved for results of data analysis OWB2 dlHFolder reserved for results of data analysis OWB3 dlHFolder reserved for results of data analysis 160 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Readme txt Folder reserved for results of data analysis SOM Access on COM1 Shortcut to SOMAccess on COM1 SOM Access on COM2 Shortcut to SOMAccess on COM2 SOM Access on COM3 Shortcut to SOMAccess on COM3 SOM Access on COM4 Shortcut to SOMAccess on COM4 SOMAccess exe Utility to set specific parameters on the SOM SWS15100 exe SWS application program SWSBaselOAddr exe utility to set the base I O address of the parallel port interface or data acquisition card SWS SetupTestWizard exe Utility allowing verification of the test setup configuration Visual Basic Programming Example To run the VB example 1 2 3 Copy OWB1 dll OWB2 dll OWB3 dll and SWS15100 dll to the Windows System directory in Windows 95 98 or to the WinNT System32 directory in Windows NT From the Development VB Setup directory run the setup exe program From the Development VB Source directory run the SWSSample exe program C Programming Example To run the C programming example 1 5 Edit the C program In the call to initSWS
109. e Wavelength Calibration Window select the channel that the gas cell is connected to Ensure that a reference has been done for this channel 2 Press the Start Acquisition button to acquire the trace of the gas cell System Calibration A T AH i l 4 33 000535 000 37 000539 000541 1 000543 000 545 3 001 serie fsa Figure 86 C Band Trace using 12C2H2 Acetylene Cell Operating and Maintenance Instructions 103 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com System Calibration 1542 3842 3842 Figure 87 L Band Trace using 13C2H2 Acetylene Cell 104 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com 200 4 00 1525 3607 rede aot i i 1559 4306 6 00 1524 1369 1548 0590 1546 8751 ai 1556 7134 Me 1523 0862 Aue 4535 3935 anm l 1544 0995 14004 BE 1520 1806 19828312 154 0511 S371 531 5908 IA 1 1520 0867 Beene rms fae NE GR naaa aaa 1520 000 1622000 1524000 1526 000 15268000 1530 000 1534000 1534000 1536 000 1530 000 11540000 42000 1544000 1546 000 Wavelength nre Figure 88 Absorption Lines of C H Acetylene Cell Table 14 Wavelengths of Absorption Lines for 2C2H2 Acetylene Cell Peak Wavelength Difference Peak Wavelength Difference Wavelength Reading nm within Wavelength Reading nm
110. e following algorithm where w 0 0 lt w lt 1 0 is the chosen weight Average pass 1 Reading pass1 Average pass_2 w x Average pass_1 1 w x Reading pass_2 Average pass_3 w x Average pass_2 1 w x Reading pass_3 Average pass_4 w x Average pass_3 1 w x Reading pass_4 Or generally Average pass n w x Average pass_ n 1 1 w x Reading pass_n In this example Reading are measured insertion losses in linear power scale At the end of each scan the running average is converted to dB and displayed Minimum Loss in PDL Mode In PDL mode the minimum insertion loss is computed at each wavelength without respect to the polarization To compute this the Mueller matrix is computed from the insertion loss measurement at the four linearly independent polarization states produced by the four state polarization controller From the Mueller matrix the polarization vector that produces the Reference 223 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com minimum insertion loss is computed The Mueller matrix is then used to find the insertion loss for this polarization state The minimum insertion loss shown is the minimum that is possible for the device at the stated wavelength without respect to the polarization state Maximum Loss in PDL Mode In PDL mode the maximum insertion loss is computed at each wavelength without respect
111. e is connected to the common or input port of the device A separate detector channel is used for each of the outputs from the device The measurement of all the channels is done simultaneously Receiver Chassis Source Optics Module FC APC FC PC EK di 7 Q as empha verve ee rd N ke ele da nt FCIAPC FC PC 4 Channel DWDM Figure 80 Characterizing a Multiple Output Device 3 Use the software to select the channels to be processed and acquire a trace The results for all selected channels are displayed in the chart area These plots can be analyzed and manipulated For more information see the Using SWS Software section 4 Measure PDL Characterizing a multiple output device for PDL is very similar to acquiring the IL trace the differences being that the software must be in the PDL mode and the SOM must be set in Polarization Mode 1 All selected output channels are measured simultaneously Interpreting PDL results is somewhat more complex than IL See the Interpreting PDL Data section for more information Operating and Maintenance Instructions 97 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Example Application Characterizing Fiber Bragg Gratings in Reflection Fiber Bragg Gratings work by reflecting the light back into the wavelength region that they are designed to filter out When measuring the gratings in transmission considerable li
112. e the ribbon cable and run the program again e Clean all optical connections particularly the ones on the receiver control module and try again If the error persists call the local JDS Uniphase representative or the service hotline to determine if repairs are needed Acquire a new scan e Perform a zero loss reference for the channel and polarization state requested e Acquire a trace If the error persists call the local JDS Uniphase representative or the service hotline table continued Reference 193 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com olem semen 10 Atrace displayed on the Repeat insertion loss measurement He large e Verify that the proper channel has been selected insertion loss at a wavelengths pr the DUT that is connected to the e Acquire a zero loss reference again e Reconnect the DUT e Repeat the measurement e If insertion loss remains large perform a reference and measure for insertion loss again If the problem persists call the local JDS Uniphase representative or the service hotline The characteristic Check wavelength accuracy wavelength of a known e Check the wavelength calibration of the tunable device seems to be laser source at 1520 nm and 1575 nm using a measured incorrectly standard wave meter If the calibration error is greater than 200 pm recalibrate the laser source Verify wavelen
113. e wavelength going a half bandwidth on either side double pdLeftOutPower This is the power in the out of band channel to the left of the reference wavelength double pdRightOutPower This is the power in the out of band channel to the right of the reference wavelength double pdTotalOutPower This is the total power in the out of band channels Return Value When there is no error the function returns zero When there is an error the return value contains the error number getChannelList Function Description o Purpose The getChannelList function retrieves all the channels present on the SWS system Values are returned in an array list The size of the array must be 128 The active channels are filled from the beginning of the array The rest of the array up to 128 is filled with 0 To work properly this function must have an array of 128 unsigned short elements allocated for the active channel list C prototype unsigned short getChannelList unsigned short channelList VB prototype Declare Function getChannelList Lib SWS15100 ByRef channelList As Long Input Unsigned short channelList The channelList array contains all the channels that are present on the SWS system 154 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Function Description Output None Return Value When there is no error the function returns the
114. easure the power coming into the CM from the transmitter The magnitude varies during this measurement The true measurement is the value that stays steady for approximately one second as the laser is sweeping back to the start wavelength The maximum value of the power must be greater than 5 dBm for a one output transmitter 8 dBm for a two output transmitter 11 dBm for a four output transmitter Measure the power at the output of the control module e Compute the loss through the CM If the loss through the CM is greater than 3 dB call the local JDS Uniphase representative or the service hotline to return the CM for repair If the power coming into the control module is low check the fiber jumpers Check the fiber from the transmitter to the CM The fiber must not be stressed in any way or have kinks or sharp bends in it Clean the connectors at both ends of the fiber Clean the ferrule on the UCA on the source optics module Verify that the FC PC connector is at the SOM end and that the FC APC connector is at the control module end Perform a reference Acquire a trace table continued 196 Reference Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com olem semen If noise persists check the output from the SOM for low power The noise seen on a trace with only a fiber jumper is greater than 0 02 dB Measure the power at the SOM o
115. ed by repeatedly averaging the signal Wavelength at the Minimum The wavelength at the minimum in the signal is found by searching for the absolute minimum signal if the signal has a minimum The user specifies whether the signal has a minimum or a maximum Minimum Power The minimum power value is the value of the absolute minimum signal levels regardless of the noise Wavelength at the Maximum The wavelength at the maximum in the signal is found by searching for the absolute maximum signal if the signal has a maximum The user specifies whether the signal has a minimum or a maximum Maximum Power The maximum power value is the value of the absolute maximum signal levels regardless of the noise Center Wavelength using a Threshold Relative to the Baseline The SWS calculates center wavelength using the following procedure 1 Find the specified peak minimum or maximum signal level Store the wavelength at which the level occurs 2 Find the average baseline of the signal Other levels are defined relative to average baseline 3 At a power level x dB from the average baseline Step 2 find the shorter wavelength A nearest to the signal The wavelength is determined by finding two data points one to the left of the wavelength at which the signal crosses x dB and one to the right of that wavelength The wavelength A corresponding to x dB is interpolated from these two data points The search is begun starting outward left f
116. eference measurement e Average Done Count used only for averaging This box displays the number of traces averaged e Progress bar displays square boxes along the bar when the system is collecting data e Status displays the status of the system with parameters such as e Idle when the SWS is not doing anything significant e Progress when data is collected e Display when data is processed for display on the screen 76 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Reference Scans Tab Page The Reference Scans tab page Figure 67 is used to control the acquisition of references Analysis i is Process amp Display Option Marker Channels 1 2 5 6 Dark Voltage Band C Zero Loss S0 Jul 12 15 15 Band C Zero Loss 51 Band C Zero Loss 52 Band C Zero Loss 53 Band C Zero Loss 54 I Dark Voltage IV Zero Loss NA Refresh Figure 67 Reference Scans Tab Page The Reference Scans tab page contains the Reference Table the Dark Voltage measurement check box the Prompt Every Channel check box and the Zero Loss Measurement check box Each of six rows in the Reference Table represents a reference measurement for Dark Voltage and Zero Loss for polarization states SO to S4 The columns are for the channels The value in each white cell is the time stamp at which the measurement took place To d
117. elength accuracy or where wavelength instability is suspected a wavelength diagnostic feature can be enabled When the feature is enabled the wavelength accuracy is tested after every scan and errors are logged to a file The user is informed immediately of any wavelength instability To enable wavelength diagnostics on both C and L band systems 1 Edit the SWS15100 INI file 2 Reset the number of points on the SOM 3 Perform wavelength calibration 118 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Changing the INI File on C Band Systems If the SWS15100 application is running terminate it Open the SWS15100 INI file It is located in the C Windows directory in Windows 95 98 or the C Win32 directory in Windows NT Edit the SWS15100 INI file to make the following changes and additions 1 Inthe DATA section change the value of MaxPoints to 18500 2 Adda GENERAL section with the following lines GENERAL Diagnostics 1 DiagnosticsLog 1 LambdaMax 1570 3 Add a Band Info section with the following lines Band Info C Start 1520 C Stop 1570 4 Save the file Changing the INI File on L Band Systems If the SWS15100 application is running terminate it Open the SWS15100 INI file It is located in the C Windows directory in Windows 95 98 or the C Win32 directory in Windows NT Edit the SWS15100 INI file to
118. en three options on the System menu Calibration OWB Info and Setup Calibration opens the calibration window See the Calibrating the Equipment section for detailed calibration procedures OWB Info refers to information stored in the control module and detector modules The CM stores wavelength and power calibration constants while the DMs store only power calibration constants Other information is stored including part and revision numbers and serial numbers When the user selects this option the information is read from the receiver modules and displayed Figure 58 Operating and Maintenance Instructions 69 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com OWE Receiver Information EI Product Information Power Calibration Values WL Calibration Vi CM Band 5 Band C SN Revision Desc Mi M2 M3 M4 MO L MO L Factory F8026189 1 05 SWSCON 163614 0 00015521 0 00611113 186437 531492 1531492 557353e 008 User N A N A N A 1636 14 0 000155210 00611113 186437 517439 517439 5 42616e 008 J Channels Product Information Power Calibration Values Unit ID SN Revision Desc MI M2 M3 M4 IFadoy 5W515107 FB00841 105 SWS DETECTOR 1635 7 0000161148 000611323 31 0643 1 User N A N A N A N A 1635 7 0 000181148 000611328 31 0641 fodo Sv515107 FB0I0941 1 05 SWS DETECTOR 1635 76 0 000137576 000611308 30 2766 2 User N A N A N A N A 163576 0000137576 000611308 30 2766 Figure 58 OWB Inf
119. ent 2 cccccccceceeeeeeeeeeeeeseeeseeeeeeeeeeeeeeee 21 ital La ete RE Sgn ante bain se gio SE 21 Operating Environment srernvenerrnonvvnnnvnnnvonenrnnnvennnvnnnvenerrnnnvennnvnnnrnnerennnvennnnnnnvenernnnnnennnene 22 Ila ER Ageiedshatnasabedewspeanpedeaansdaeee 22 UN aepeeerer anes ee ner enere rie are a eer ree error tet ree eee 22 KST g 1 5 isda innit ange Se eee ees E ee ue late Sa is ace eae 22 St ring and SUING sserrep uicescted rman Peaaendge bddeue stdaacedapeue i aanaduens 22 Claims and SACKING nets cas den sted danidenaddeticatedustcesndasecciacbijonedteesdesedheaceudataananaae 23 Returning Shipments to JDS Uniphase uimsmmer njinunmenimonsna but mv 23 Gl aniNg CoMMedOrSuuqemeasevebuugeanunmv demente 24 FI 25 D000317 Rev G January 2001 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Installing the Transmitter erannvnnnnnvnnnnnvnnnnnvnnnnnvnnnnnvnnnnnvnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnenennn 25 Source Optics MOGUIG ssi cestcsieiniicnsscetduditansddeticadecsintedite iaciiebiionaddeiideddehensasidsbiandceas 25 Tunable Laser UNC Scie es aaa tech ce eee eee ecatcnestaprsceeueesnctee tans eair ai EEE EEEE Ra 25 Transmitter Cabinet REE EE EE 25 Installing the Source Optics Module and Tunable Laser Source cccccceeeee 26 Setting and Verifying Default Source Optics Module Values c cccsseeeseeeee 28 Powering Up the Source Opt
120. er Interface Main Menu ii isessaesssssdsdsteasiasceustees tous steseesdenersbineeinansiedemagsaues 65 File MENU iesire oeeaaeaii E EEEa a eae Ra REER 65 ie 2 oa 21 eee ee eee oe eee eee 68 SEMEN 69 ee SR EE S 72 Help Men er ee 73 Configuration MOON preses 74 SEE REN 74 Common AICS FE ndaexasvecpasabeterenton nadeadestaaneasseeniedeets 75 Status Analysis Area rrannvnrnvonerrnnnvvnnnvnrnvonerrnnnvennnvnnnvenernnnnvennnvnnnrenrrrssnrennnennnnennn 76 Reference Scans Tab Page s vasdmsausesvietininineidnnnbisjmeiudvnnv did 77 Process and Display Options Tab Page esessessessrnesesrsrrnesnrsneernnnnnrnnsrnernnrnnee 78 Analysis Tab Page Lassa edda iiai ie tenandlozabnetatesesseascteaes 81 MT ere eee ee eerste eee eee ee eer eee 88 Exiting the SNE uppe tener net aera eur sree eae errr ert yr 89 Preparing for Measurements rrnannnnnonnvnnnnnvnnonvnnnnnvnnnenvnnnnnvnnnnnnnnernvnnnnrnensrrrenssrrnnsnrrnnnnnnnn 89 Zeroing the System ssrin mean nav EEE 89 FTP 89 Example Application Zeroing for an FBG using a Circulator and Reflector 90 Measuring Dark Voltage i cscscpiece dace ee vedde kensnumGermebukendjuste 91 Measuring Zero LOSS rrnnnvrnnnnvrnnnnvrnnnnvnnnnnvnnnnnrnnnnnnnnsnnnnnsnnnnnennennennnnsnnnennenrenssrnensnnrnnnnnnnn 92 MedsuNg Insertion LOSS scctisitccstan stated ges E 92 Measuring Polarization Dependent LOSS rarnvnnnnnvnnnnnvnnnnnvnnnnnvnnnnnvnnnnnnnnnnnennnnnnnnnnnnnnnnnne 93 Interpreting POL Dat is
121. er calib The user calibration is not The default value is used instead of err correct the user calibration Press Enter ERROR no factory There is no factory Switch off the system and check the calib calibration electrical connections Power on If Turn power off the problem persists call the service hotline DEFAULT There is no connection Switch off the system and check the between the head and the electrical connections Power on If controller the problem persists call the service hotline Value Error The entered value is not in Press Enter If the system is under the valid range remote control check the interface connection and retry If the error persists the value is wrong Enter a valid value Limit Switch There is a mechanical Switch the laser off and call the Turn power off problem service hotline EEPROM error There is an electrical Switch the system off and call the Turn power off problem service hotline Laser head disconnected Reference 215 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Error Messages from the Source Optics Module The error messages generated by the SOM are listed in Table 24 with actions to take when the messages appear Table 24 SOM Error Messages Increase Span The required number of Verify that the laser is connected triggers are not being to the SOM input and that it is generated functional If so
122. er source can be connected to multiple independent receivers e Reduction in test instrumentation costs e Absolute wavelength accuracy 0 003 nm e Fast measurement six seconds plus one and one half seconds for each channel for C band or eight seconds plus three seconds for each channel for L band with the parallel port interface e Ability to expand wavelength range by combining outputs from two transmitters e User friendly software Applications e Characterization of high density demultiplexers e Spectral response measurement of optical network components e Research and development e Manufacturing 12 General Information and Specifications Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Standard Accessories Standard components and accessories are listed in Table 3 Part Number SWS15100 Cn A0105335 ED003854 A 00 ED003855 A 00 ED006406 F 00 J FAFP B 001 J1 J FAFP B 010 J1 J FPFP B 0 3 J1 N A A0104218 5D000317 5D000319 Table 3 SWS15100 System Standard C band SWS system with n outputs Tunable laser SWS15101 Source optics module SWS15102 and C1 C2 or C4 Receiver chassis with one control module and one detector module SWS15110 Transmitter cabinet OWB10001 SWS CD ROM e Accessories FC PC jumper 0 3 m from source optics module Signal Cond In port to Signal Cond Out port FC APC FC PC jumper 1 m polarization maintaining fiber f
123. ere is more than one receiver chassis use the following instructions to install the first chassis To add additional chassis see the Installing Additional Receiver Chassis section Caution The detector modules are not hot swappable Turn the power off before installing or removing a detector module To assemble the receiver 1 Place the chassis on a solid surface near the user supplied computer The unit is also rack mountable 48 26 cm or 19 in wide rack If rack mounting the chassis use angle brackets user supplied on the bottom of the unit in addition to the front screws Ensure there is sufficient clearance 10 cm front 8 cm rear for air intake and exhaust 2 Insert the control module into the first slot on the front left side of the chassis and fasten it using the screw fasteners 3 Insert the detector module into the next slot and fasten it tightly using the screw fasteners to ensure proper grounding of the detector module If there are more detector modules wait before installing them see the Installing Additional Detector Modules section for detailed instruction At the back of the chassis attach one end of the short 50 pin termination cable into the Termination connector bottom port and the other end into the Additional Chassis connector middle port also at the back of the chassis Using the Dual Band Selector Switch Module DBSSM with the SWS The Dual Band Switch Selector Module DBSSM is an add on
124. erformed 98 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Measuring PDL of an FBG The PDL characteristics of an FBG can be measured using the same setup for zero loss measurement and data acquisition as for insertion loss The difference is that the software must be set in the PDL mode and the SOM in Polarization Mode 1 For more information see the Using SWS Software section Calibrating the Equipment General Information There are two parameters for which the SWS is calibrated power and wavelength Power calibration is performed at the factory It is performed for both the control and detector modules To satisfy ISO 9000 requirements each detector module must be re calibrated at least once a year for power The user can perform the calibration or the module can be returned to the factory for calibration The procedure for power calibration of the detector modules is described in the Calibrating Power section If the power calibration is suspect it can be verified using the procedure described in the Verifying Power Calibration section Wavelength calibration is performed at the factory when a complete system is shipped However the user must perform wavelength calibration on a receiver or control module when it is shipped as a separate unit or if a control module or receiver is moved from one transmitter to another or if an additio
125. ero loss measurement must be made before any measurement can be made using the SWS Occasionally as in the case of measuring a fiber Bragg grating in reflection the process of zero loss referencing becomes more complicated see the Example Application Characterizing Fiber Bragg Gratings in Reflection section Measuring Insertion Loss The IL through all channels in a device can be measured quickly and easily as a function of wavelength using the SWS The wavelength ranges covered in C band and L band systems are specified in the Specifications section as are the measurement accuracy repeatability and dynamic range To measure IL 1 Set the source optics module to the required polarization state 2 Select insertion loss mode 3 Select the channels to process 4 Perform a zero loss reference scan for each of the selected channels 5 Connect the device 6 Inthe SWS application select the type of analysis to be performed 7 Acquire a trace The insertion loss trace appears on the screen To manipulate the screen image zoom in or out pan or select a window on which to zoom in 92 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Measuring Polarization Dependent Loss PDL through a device can be measured using the SWS using the optional four state polarization controller SWS15104 The PDL can be measured for any passive
126. es for each channel Calibration requires the same equipment and setup as for verification To calibrate the power 1 Using the software select the System menu choose the Calibration option and the Power Calibration tab The Power Calibration window appears Figure 95 Operating and Maintenance Instructions 115 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com System Calibration Ea Power Calibration Wavelength Calibration T l Laser Source Power Meter Selected il Available Channels sen Calne E a Refresh Channel BE roces First Esset T Calibration Information Calibration Wavelength fo _ Current rant Calibration Inputs Acquire Voltage Voltage fi Input fi Dark Voltage Measurement 4 Set ta Factor Settim H Acquire Dark Voltag SN cie Restore Calibration Dark Voltage jo Kb Figure 95 Power Calibration Window Type the names of the equipment being used for calibration in the Laser Source and Power Meter fields If necessary click the Refresh Channels button to redisplay the channels in the Available Channels column Select the Available Channels to be calibrated Click the gt or gt gt button to load the channels The channels appear in the Selected Channels column Set up the equipment as for power verification previously shown in F
127. es of r from n to n for a half filter size of n Improvement in device measurement can be achieved by averaging and smoothing the reference in the same way as is done for the traces As a precaution do the averaging in PDL mode if a polarization controller is present even if the measurements are in insertion loss mode The effect of smoothing is to reduce the noise over a small wavelength region Smoothing also has the effect of degrading the wavelength resolution When smoothing is used the half size of the triangular filter must be chosen with the characteristics of the device considered Care must also be used while interpreting the results When studying the characteristics of a device in regions where the IL varies rapidly with wavelength it can be preferable to average over several references and scans to improve the measurement Characterizing Specific Devices Single Output Devices Simple passive optical devices that can be characterized using SWS include Attenuators Bandpass filters Isolators Fiber Bragg gratings in transmission Etalons Optical filters 94 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Acquiring Zero Loss Reference for a Device For simple passive optical devices only one channel is required To characterize a device 1 Select the processing mode insertion loss or PDL Perform a zero loss meas
128. essed air blow the end of the ferrule g Apply the alcohol or ethanol to a lint free pipe cleaner or swab and wipe off the remaining parts of the connector 6 With the other end of the pipe cleaner or swab dry the areas cleaned 7 Using the dusting gas or compressed air blow the areas cleaned 13M is a trademark of 3M 24 Getting Started Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Installation The Swept Wavelength System consists of six main components a transmitter a transmitter cabinet receiver application software and a user supplied computer with parallel port interface or data acquisition board The data acquisition board is an optional component The tunable laser source and the source optics module are the two components of the transmitter This section outlines instructions for setting up powering and testing the system Installing the Transmitter The transmitter packed in three boxes consists of e Source optics module e Tunable laser source e Transmitter cabinet As outlined below install the source optics module and tunable laser source in the transmitter cabinet which comes fully assembled Source Optics Module The source optics module box contains the following items SWS15102 or SWS16102 source optics module 9 pin RS232 D sub cable FC PC 0 3 m jumper AC power cord Certificates of calibration and test reports Packing slip T
129. et Attach the other end to the top Computer connector of the new chassis 6 Attach the AC power cord provided to the new receiver chassis and to the AC power source 7 Turn the power on for each chassis Powering Up the Receiver To start the receiver turn the power switch at the back of the chassis to I on It is recommended that the receiver be left on at all times The LEDs on the Control Module and Detector Module do not light up when the receiver is powered on The LEDs on the receiver will not activate until the software is initialized Getting Started 37 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Connecting the Transmitter After the transmitter and receiver have been installed the components must be connected to each other 1 Setup the system as shown Figure 16 FCIAPC es ra g i ERE Receiver Chassis Foc x pg pepuga a Source Optics Module JDS Uniphase amen eee a 7 3 p ca fia Parallel Port Tunable Laser Source to Receiver Se RR RTO tee S ee SWS Software Transmitter Cabinet Figure 16 SWS Front Setup 2 A 10 m hybrid FC PC FC APC jumper is supplied with the receiver the FC PC end has a black boot and the FC APC end has a green boot Attach the FC APC end to the Tx In connector on the receiver s control module top port Connect the flat FC PC end to any Output port on the front of the
130. et up SWS parameters such as the points in a trace for each band The dialog box that is displayed is shown in Figure 61 Changes made with this option are reflected in the INI file and are used for running the SWS at a later time General Setup Switch Setup System Setup 1 0 Interface Base IO Address 0x240 v C SWS Perallel AT DIO 32x Cancel Figure 61 System Setup Tab Window Menu Figure 62 shows the Window menu PAE window am Cascade Tile Arrange Icons v 1SWSConfiquration000 Figure 62 Window Menu Cascade arranges all open windows slightly overlapping from the top left to bottom right of the window Tile arranges open windows either horizontally or both horizontally and vertically whichever best fits the screen Arrange Icons arranges the icons representing all minimized windows by lining them up beginning at the bottom left corner of the screen lt Window list gt the bottom section of the Window menu which provides the name of each of the active windows to a maximum of nine configuration window entries If more than nine configuration windows are open the More Windows option appears in the last line of the Window menu 72 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com More Windows displays a list box of all open configuration windows from which the user can select t
131. etylene Cell ccscsessessssecsssssssnssessssessesesessenstsessessees 105 Figure 89 Absorption Lines of CaH2 Acetylene Cell ccccsccsessssesessssesssesessssesesssestssenteassenens 106 NEN RENE EE NE nE SEa 108 Figure 91 Click YES to restore the last calibration data asrorervrrrnvrnnvrnvrrnrrrrrrvrnnnvnnnvrnvernnn 109 Figure 92 View of the INI file in Microsoft Notepad rsrrrnnvrrnnvevnvnnvvavnnvernnvevnrnnerarrvervsnevsrereaeenn 111 Figure 93 Absorption Lines of HSC N Cell c csccscessssessessssessesscsccsessessesssessstessessssessenscnecsensees 112 Figure 94 Power Calibration Setup reorrrnnnvrnnnvnnnvnnrrnnn venn nvnnnvenrnnnnnennnnnnnrenennnnnnennnnennnenennnenn 114 Figure 95 Power Calibration WiNdoW si ibeccpe ni cesadeiceteciacentidatieet eiatcceiadeieakislaadenaGecrnduuteedeineds 116 Figure 96 SWS Data Collection and Processing xxssascassascessteyivancuads tune incense casaenevoueriasieds june 163 Figure 97 Insertion Loss Mode Processing ccccisscsccs2tgsidccecisthsaccesnedstocaasvaiaaialctectsadsiecueeatesannanonis 164 Figure 98 Zero Loss Data in Insertion Loss Mode rsnrrnnvrnnnvnvnvnnvrrnrnvernnvevnrerearenvernvevsrnrerevenn 165 US 99 Acg ire TERRE ee Sin wteeka e KE 166 Figure 100 Get Insertion LOSS cccccecceceseceeeeeeeeeesee seas eeeeeseeeeeaeecaaesaeeeeneesaee seas seeesseneeeeeenaeees 167 Figure 101 Process Insertion Loss Trace ca vate vinetscecauaicaaiaswerntunceinlicsey
132. fely Electrostatic discharge ESD See the user s manual for instructions on ox A handling and operating the unit a Frame or chassis terminal for electrical grounding within the unit table continued Safety 7 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Protective conductor terminal for electrical grounding to the earth WARNING The procedure can result in serious injury or loss of life if not carried out in proper compliance with all safety instructions Ensure that all conditions necessary for safe handling and operation are met before proceeding CAUTION The procedure can result in serious damage to or destruction of the unit if not carried out in compliance with all instructions for proper use Ensure that all conditions necessary for safe handling and operation are met before proceeding Compliance CE Compliance The unit has been designed and tested to comply with directive 73 23 EEC and its subsequent amendments by the European Community EC or CE The directive relates to electrical equipment designed for use within certain voltage limits It ensures that electrical equipment is constructed with good engineering practice in safety matters The unit has been designed and tested to comply with directive 89 336 EEC and its subsequent amendments The directive relates to electromagnetic compatibility It demands that electromagnetic disturban
133. ght is reflected back into the Control Module The Control Module is designed to accommodate this phenomenon A circulator is needed for this measurement In addition a 100 reflector is required for the reference It is not recommended that the device be measured in both transmission and reflection simultaneously Also special care needs to be taken that the transmitted portion of the light is prevented from corrupting the measurement in reflection As in any SWS measurement the first step is to acquire the zero loss reference Next the device is connected and the measurement is performed Measuring Insertion Loss of an FBG To measure the insertion loss of the FBG in reflection 1 Connect the FBG to the system as shown in Figure 81 Receiver Chassis Source Optics Module FC APC FC PC FC APC Mandrel Circulator or other Terminator Figure 81 Setup for Characterizing the FBG 2 To perform the reflection measurement replace the reflector with the FBG and terminate the transmitted output of the FBG using a mandrel termination or similar technique The mandrel termination is used to prevent possible reflection of light to Port 2 back through the grating and the corruption of the insertion loss measurement by the reflected light Corruption can reduce the insertion loss by as much as 10 dB The reflection measurement is made on Channel 2 of the receiver which is consistent with the way the zero loss measurements are p
134. gned short chID This is the channel ID for which the IL trace is required unsigned short dataSize dataSize is the size of arrays pLamData and pPowData allocated by the user This is the size of the acquired trace retrieved by the user using the function getDataSize 134 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Function Description o Output double pLamData The pLamData array stores wavelength for each data point in the trace The function updates the array and the pointer to the array is passed as input double pPowData The pPowData array stores the IL power level dB scale Each value from pPowData array has a corresponding wavelength value in the pLamData array The function updates the array and the pointer to the array must be passed as input short pola The function returns the polarization of the current processed trace Return Value When there is no error the function returns zero When there is an error the return value contains the error number getPeakPower Function Description o O Purpose The getPeakPower function retrieves the power of the largest peak that is contained in the pPowData power array Call the function after obtaining pPowData data through a call to the getILTrace function The refpeak parameter must be filled by the caller C prototype int getPeakPower double pLamData double pPowData uns
135. gt psss o 1533329 o pe psen 1533867 3 1826 gt 15346 m pisses gt Le ooo ae ME E EE ae a ae DE E KE C a rr a DE ooo a pene EE ne a o o a ee ooo ae a ae ee a a a a a NIOJ AJO 8 1540 431 540 431 2 5 a a Operating and Maintenance Instructions 113 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Verifying Power Calibration The insertion losses of two detector channels under identical measurement conditions and using the same device are normally identical If the insertion losses are not the same power calibration of the suspect channel must be verified The following equipment is required for verifying and calibrating power e Second laser source does not need to be tunable e NIST traceable power meter with monitor output JDS Uniphase HA9 Series Extended Range Programmable Optical Attenuator with two outputs e Wavelength meter optional To verify power calibration 1 Set up the equipment as shown in the following figure The example shown uses Channel 2 of the receiver The polarization controller is not used when verifying power calibration FC PC o a T i 3 Qun mv r jr 0000 O rer u FCIPC slet RER amp Receiver Chassis gt O gt ia uw be FC APC a O a O a oO oo u power HA9 wave meter FC PC Attenuator FC PC meter o gt DA
136. gth System Components 10 Features 9 Front view 38 How the SWS calculates values Averages 220 Center wavelength 218 219 Center wavelength power 219 Loss in PDL mode 220 Maximum power 218 Maximum wavelength 218 Mimimum power 218 Minimum wavelength 218 Polarization dependent loss 221 Threshold power 218 Models 9 Overview 9 Setup 38 SWS See Swept Wavelength System System menu 69 Calibration 69 General setup 70 OWB Info 69 Setup 70 Switch setup 71 System setup 72 Terms Acronyms 1 Definitions 3 Testing the components Data acquisition board 52 Output ports 52 Parallel port interface 52 Receiver 51 Testing the System 53 Testing system noise 53 Verifying connections 53 Threshold power 81 218 Time stamp 77 Trace 234 Index Artisan Technology Group Quality Instrumentation Acquire See also Insertion loss Polarization dependent loss and Zero loss Change type 92 Placing markers 87 Select 92 Transmitter 17 See also Dual band selector switch module Connecting 38 Transmitter cabinet Specifications 19 Troubleshooting 186 Equipment 186 Flowcharts 196 Testing for SOM Power 203 Testing for System Noise 202 Testing the Receiver 200 Testing the SOM 199 Testing the System 197 198 Performance checklist 206 Source optics module messages 213 SWS software messages 214 SWS15100 software messages 215 Tunable laser source messages 212 Tunable la
137. gth accuracy using the built in acetylene cell If Known lines are off by more than 3 pm recalibrate the system for wavelength see the Error Reference source not found section Check the calibration by looking at several known peaks Save the old and new calibrations Run the SWS15100 program and measure a known device If the power levels are not correct measure the power levels at critical points such as input to the receiver control module and input to the device The correct power levels are gt 12 dBm and gt 15 dBm Compute the loss through the control module the correct loss is lt 3 dB If the control module is within specification clean all connectors and try another device If the problem persists call the local JDS Uniphase representative Repair of the control module is indicated table continued 194 Reference Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Problem semen The noise seen on a trace Verify the noise level with only a fiber jumper is Perform a zero loss reference greater than 0 02 dB net Repeat the measurement in insertion loss mode Clean all connectors and repeat the measurement Change jumpers and try again Verify power to the DUT e Measure the power at the DUT with a power meter The correct power level is gt 15 dBm without a polarization controller and gt 20 dBm with one If the power is
138. gure 44 Main Menu of the SOM The SAVE button is used to save the current operational parameters Setup Menu The parameter setup menu Figure 45 allows the user to change operational parameters including the start and stop wavelengths the laser power the scan rate the delay between scans and the polarization mode To change a parameter such as the laser power press the button beside POWER 60 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com PARAMETER SETUP START POLARIZER Figure 45 Setting SOM Parameters A new menu appears as shown in Figure 46 The arrows are used to select the value of the parameter The UP and DOWN buttons are used to increase or decrease the digits of the value Using the buttons the value of the selected parameter can be changed within the limits set for the laser When the correct value is displayed press the BACK button to return to the previous menu Figure 46 Changing Parameter Values In each menu where values can be changed the NEXT button is used to select the parameter to modify Repeatedly pressing the NEXT button moves a large arrowhead through all parameters To increase the value press the UP button and to decrease the value press the DOWN button Manual Menu The manual mode shown in Figure 47 can be used to check the wavelength and power outputs of the laser When the correct
139. h CW as the mean of the two Ar A_ 2 Find the two data points of the signal nearest the CW Get the power at each of these points Interpolate to find the power at the center wavelength from these points Power at the Center Wavelength The power at the data sample nearest the center wavelength is reported as the power at the center wavelength Bandwidth Finding Bandwidth using a Threshold Relative to the Baseline The algorithm used by the SWS to find the bandwidth is 1 2 Find the specified peak signal level Store the wavelength at which this occurs Find the average baseline of the signal relative to which other levels are defined At a power level x dB from the baseline found in Step 2 find the shorter wavelength A nearest to the signal The wavelength is determined by finding two data points one to the left of the wavelength at which the signal crosses x dB and one to the right of that wavelength The wavelength L corresponding to x dB is interpolated from these two data points The search is begun starting outward left from the peak position At the same level x dB from the baseline find the longer wavelength Ar nearest to the signal as in Step 3 The search is begun moving outward right from the peak position 222 Reference Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com 5 Compute the bandwidth of the device as the difference betwee
140. hange the display Saving a Trace to Memory A trace that is displayed on the chart can be saved to memory Press the Save button to save the trace to memory Only one trace is saved and the previously saved trace is overwritten Operating and Maintenance Instructions 79 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Retrieving a Trace from Memory To view a trace that is saved to memory click the Memory checkbox and press the Refresh button The trace appears on the chart Press the Reset button or Autoscale button in the Chart area to redraw the plot if necessary Inverting a Data Set A data set can be inverted that is all power values can be changed in sign by clicking the Invert Data Set check box and then clicking Refresh Overlaying a Trace A previously saved trace can be overlaid onto the currently displayed trace To perform an overlay save a trace as explained in the Saving a Trace to Memory section Acquire a new trace to display or load a data set that has been stored previously See the File Menu section for details on saving a data set When the new data is shown on the chart click the Memory check box ensure that it is checked and click the Refresh button The old data is now superimposed over the current trace Chart Properties The SWS software allows the user to select the units used for the x axis and y axis Click the radio button for the desired
141. he NASA Supplement to the FAR 8 5 You agree to comply with all export regulations pertaining to the SOFTWARE in effect from time to time Without limiting the generality of the foregoing you expressly warrant that you will not directly or indirectly export re export or transship the SOFTWARE in violation of any export laws rules or regulations of Canada the United States or the United Kingdom 8 6 No term or provision of the Agreement shall be deemed waived and no breach excused unless such waiver or consent is in writing and signed by the party claimed to have waived or consented The waiver by either party of any right hereunder or of the failure to perform or of a breach by the other party shall not be deemed to be a waiver of any other right hereunder or of any other breach or failure by such other party whether of a similar nature or otherwise 8 7 This Agreement shall be governed by and construed in accordance with the applicable laws of the Province of Ontario and Canada without regard to conflict of law principles The application of the United Nations Convention on Contracts for the International Sale of Goods is hereby expressly excluded Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Terms Acronyms AC ANSI APC ASCII BW CD ROM CM CW DBSSM DC DIP DLL DM DMA DUT DWDM ECP EEPROM EIA EPP ESD FBG FWHM GHz GPIB GUI IEEE IL I O ITU LED Alter
142. he control module after the system has been zeroed Example Application Zeroing for an FBG using a Circulator and Reflector The system can be zeroed for an FBG using a circulator and a 100 reflector instead of adding a jumper between the receiver control module and detector module The JDS Uniphase CR5500 circulator and the JDS Uniphase FR1315 reflector are used for this method To zero the system for an FBG using a circulator and reflector 1 Set up the equipment as shown in Figure 77 Ensure that the same type of connectors are used for zeroing as are used for testing the DUT preferably use the same jumpers for both procedures In Figure 77 the reflector is connected to Port 2 all the light reflected back is sent to Port 3 and Channel 2 is used for the measurement 90 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Receiver Chassis Source Optics Module FC APC FC PC oe UT FF he figs re x Quonuniphone mene Ei g i g FC APC FC PC 3 Circulator 2 Reflector Figure 77 Setup for Zeroing for an FBG 2 Take a reference scan This scan acquires the zero loss trace for the reflection path Ensure that the same channels as were used for characterizing the FBG are used Measuring Dark Voltage Dark voltage is the residual power left in the system when there is no light going
143. he data plot in the Plot area in the top half of the main window Save Data Set As saves the measurement to a text txt file in the format specified by the user The user can select or specify the following formatting parameters 66 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com e Save data by range either wavelength or frequency e Customize the amount of data stored by saving all data points saving every ri point or averaging n points e Add a user comment to the file and store it in the file header e Organize the data within the file by specifying whether to combine all channels or use one file per channel e Save data in binary format to save space on the disk or in ASCII format to export to other analysis programs e Save Mueller matrix data and save all traces or only those displayed e Save the file by name When this menu item is selected a dialog box shown in Figure 55 is displayed in Sweet Wavnherrath Dystans Twi Currin Ol eg org Range Om Dora F Furene C Sreone exge 1 ipare I me EYR Deon mayr pire I Tang ves N t Dormer tr One AW w ba Saet Fie Proporta Erra Qobore tor POL Sera Cote F E ASA fee por Parco N Many fees a Fis sun KBr f I Or cherrei par he r LasrPotarus on FS Doms tie Ana Die we E E SE Chew TFPIIELSSLNI t NU Figure 55 Dialog Box to Save Data
144. he system is available in two versions that have similar hardware components cabling requirements and operating procedures but differ in the following specifications e Model SWS15100 C band 1520 to 1570 nm completes a 50 nm scan with 0 003 nm resolution in six seconds plus one and a half seconds per channel using the parallel port interface e Model SWS16100 L band 1540 to 1630 nm completes a 90 nm scan with 0 003 nm resolution in eight seconds plus three seconds per channel using the parallel port interface Devices that can be characterized by the SWS include e Attenuators e Bandpass filters e Broadband couplers and splitters e DWDM demultiplexers e Fiber Bragg gratings e Isolators e Switches e Interleavers General Information and Specifications 9 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com An important advantage of the SWS is that when testing optical components with multiple outputs such as DWDMs all outputs can be tested simultaneously As the number of outputs increases the reduction in the total test time becomes more significant The output parameters for which the SWS can be used to test are Bandwidth Center wavelength Insertion loss IL Polarization dependent loss PDL using an optional controller Crosstalk Flatness Isolation Bandwidth center wavelength IL and PDL can be measured directly with the SWS software Crosst
145. hort uhYunits One of two constants UNITS DB and UNITS PERCENT are returned for the Y units Return Value When there is no error the function returns zero When there is an error the function returns an error number Programming Guide 157 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com terminateSWS Description The terminateSWS function terminates the SWS operation and resets all hardware C prototype void terminateSWS VB prototype Declare Function terminateSWS Lib SWS15100 As Long 158 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com DLL Error Returns Table 19 lists the error messages that can be returned by the functions Table 19 DLL Error Messages i gt s 5 e ponon emon 4 ser pont Enon o cerpon erron 15 INTERPOLATION_ERROR 24 READ CACHE ERROR a ata Process ERROR INVALID ZEROLOSS DATA Programming Guide 159 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com O Oo Q p table continued 27 BLINK_LED_ERROR WRITE_LED_ERROR INVALID_INPUT_DATA ACQUIRE_PDL_TIMEOUT INVALID_PDL_ACQUISITION POLARIZATION_FLAG_OFF 3 INVALID IL TRACE 28 29 30 31 32 33 34 DV TOO MUCH LIGHT Programming Examples Contents of CD ROM The follow
146. hose to view This option is displayed only when required Help Menu Figure 63 shows the Help menu Help ve el DU BNGKHEerense Help on Charting About SW S515100 Figure 63 Help Menu SWS15100 Quick Reference currently disabled Help on Charting provides help on modifying parameters associated with the plot area About SWS15100 displays a dialog box with program name version and copyright information Operating and Maintenance Instructions 73 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Configuration Windows When the program is run for the first time it is necessary to open a new configuration window from the File menu item Figure 64 shows an example of the main configuration window It is comprised of the Chart Area in the upper half of the screen the Common Area in the bottom left of the screen and the Status Analysis Area in the bottom right of the screen ee Swept Wavelength System SWSContqurahontee N Elo Moce System Window Hap lalx F_iomm zomon i Po j Poa ssw T Show Sorsihor Contqure Char Propertes Ago Unt K sen C om M GMs V di F 65 re Awe tire Sven Last Polarzaten FS Done List Awe Done 3 mm SSS SW515100 Reedy LBond TPS1 91 32 5154 iL NUM Figure 64 Configuration Window Each area is described in more detail Also provided are instructions on how to control the acqui
147. ht from the peak where the bandwidth is 136 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Function Description calculated unsigned short baseRef This is Boolean For minimum peaks the baseRef is 1 and the bandwidth of the peak is calculated from the base of the peak For maximum peaks the baseRef is 0 and the bandwidth is calculated from the peak Output double pBandwidth The pBandwidth stores the bandwidth of the peak Return Value When there is no error the function returns zero When there is an error the return value contains the error number getCenterWave Function Description o Purpose The getCenterWave function calculates the center wavelength and its corresponding power for the largest peak that is contained in the pPowData array This function must be called only after the user has obtained pPowData and pLamData arrays through a call to the getlLTrace function The parameters refpeak and interLevel are supplied by the caller C prototype int getCenterWave double pLamData double pPowData unsigned short dataSize unsigned short refpeak double interLevel unsigned short baseRef double pCenLam double pCenPow VB prototype Declare Function getCenterWave Lib SWS15100 ByRef pLamData As Double ByRef pPowData As Double ByVal dataSize ByVal refPeak ByVal InterLevel As Double ByVal baseRef ByRef pCenLam As Dou
148. i static packaging in the receiver box which contains the receiver cabling and software e OWB10002 chassis e Control module e Detector module s e SWS software on CD ROM e SWS15100 and SWS16100 Swept Wavelength System Users Manual document 5D000317 e Parallel port interface cable e 50 pin ribbon termination cable e 50 pin ribbon cable e Two FC detector adapters per detector module e Two FC PC FC APC hybrid jumpers 1 m and 10 m e Power cord To install the SWS software using the CD ROM see the Installing the Software section Assembling the Receiver The standard SWS system includes one control module and one detector module More detector modules are included if more than one is specified when ordering The control module and detector modules are installed in the receiver chassis The first receiver chassis in a series contains the control module additional chassis in the series do not require additional control modules Figure 6 and Figure 7 show the receiver setup from the front and back This configuration shows three detector modules FC adapter control module detector module blanking plate Figure 6 Receiver Front Setup 30 Getting Started Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com First chorea mn 900 Set DIP switches Attach short cable here Computer Receiver Figure 7 Receiver Rear Setup If th
149. ics Module and Tunable Laser Source 006 28 Replacing Output Ports on the Source Optics MOdUIe c cccceceessteessseeeseees 29 Installing the Standard Receiver Chassis cc cccccceecceeeeeceeeeeeeeseeeesaeeceaeeeneeseneeseeeeaeeees 29 Assembling the Receiver rsscacsesssuacssossensenenjuntieadnmussuntiess nantes tansdectdeteda ceuiameecate 30 Using the Dual Band Selector Switch Module DBSSM with the SWS c cccceee 31 Installing the Dual Band Selector Switch Module DBSSM rrnnrnrnvnnnnrnnnvvnnnvnnnvnnnrnnnnnr 32 Connecting the Parallel Port Interface rrrrranvrnnnvernvonrrrnnnvennnvnnnvnnnrrnnnvennnvnrnnennn 33 Installing Additional Receiver Chassis cccccceceeeceseceeeeeeceeeeeeeeeeeeeseeenaeeeneeeenes 35 Powering Up the Receiver mmserrrrnvvnrnnvvnnnnvnnnnnvnnnnnvnnnnnvnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnne 37 Connecting the Trersmilleruavmgaesniesiersimneiidvmnnideetnekunmidvifdndv 38 Installing Additional Detector Modules rrrnnvnnnnnvnnnnnvnnnnnvnnnnnvnnnnnvnnnnnnnnsnnnnnnnnnnnrnnnnnnnnnennn 38 Attaching Detector Adapters rrnrrnnnnvnnnnnvnnnnnvnnnnnvnnnnnvnnnnnnnnnnnnnnnnnnnnnnnnnnrnnnnnnnnnennn 39 Attaching Universal Connector Adapters cccccceeceeeeeeeeeeceeeeeeeeeeeeeeeeeaeeeenetenes 39 Installing the Compact Two Channel Receiver rrrarnvnrnvenvrrnnnvvnnnvnrnvenrrrnnnvennnvnrnvenvrnnenne 41 Installing the Data Acquisition Board areranvvnn
150. igned short dataSize unsigned short refoeak unsigned short peakIndex double pPowPeak double pLamPeak VB prototype Declare Function getPeakPower Lib SWS15100 ByRef pLamData As Double ByRef pPowData As Double ByVal dataSize ByVal refPeak ByRef PeakIndex ByRef pPowPeak As Double ByRef pLamPeak As Double As Long Input double pLamData The pLamData array stores the wavelength for each data point in the trace double pPowData The pPowData array stores the measured power levels dB scale for each point in the trace Each point from the pPowData array has a corresponding point in the pLamData array unsigned short dataSize This is the size of arrays pLamData and pPowData allocated by the user This is the size of the acquired trace retrieved by the user using the function getDataSize unsigned short refpeak This is an integer set of values Programming Guide 135 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com MAX_PEAK_REF O find maximum peaks MIN PEAK REF 1 find minimum peaks unsigned short peakIndex This is the position of the peak in the pPowData array double pPowPeak This is the power of the peak the maximum power of the pPowData array double pLamPeak This is the wavelength of the peak that corresponds to the pPowPeak value Return Value When there is no error the function returns zero When there is an error the ret
151. igure 94 The example shown uses Channel 2 of the receiver Turn on the second laser source Ensure the laser power is between 0 and 10 dBm A laser wavelength setting of 1550 nm is recommended Use of a wavelength meter to monitor laser wavelength is optional Set the two output channel HA9 attenuator so that the laser power to the detector module is between 0 and 40 dBm This power is monitored using the power meter Use the software to click the Process button to initiate the calibration process The current channel is shown in the Current Channel field with the Calibration Date 116 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com 10 11 12 13 14 15 16 17 18 19 20 Type the second laser source wavelength in the Wavelength field for example 1550 nm Click the Acquire Voltage button The average voltage of the selected channel is measured and the voltage is displayed in the Voltage field Type the input power shown on the power meter in the Input Power field Click the gt button beside the Acquire Voltage button The results are shown in the Input Power and Avg Volt columns Increase the level of attenuation on the attenuator by 5 dB click the Acquire Voltage button type in the Input Power and click the gt button Repeat Steps 11 to 14 until enough voltages for a linear plot a mini
152. imum power bandwidth or center wavelength are measured correctly Two simple tests that can be performed are Referencing and verifying minimum noise Checking the wavelength accuracy of the SWS Testing System Noise To reference and verify minimum noise 1 2 Select a channel and perform a zero loss reference in the insertion loss mode Acquire a trace with the same jumper and channel that was referenced in step one The scan will be automatically displayed on the chart area of the SWS software Getting Started 53 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com 3 The ideal trace displayed on the screen is a straight line at 0 dB insertion loss with a noise level less than 0 025 dB 4 Repeat the procedure for each available channel If all traces acquired are within the 0 025 dB noise specification the detector modules are functioning properly If any channel fails remove the jumper clean the ferrules and redo both the reference and data acquisition If the channels are still noisy or if the insertion loss deviates by more than 0 05 dB from 0 call JDS Uniphase for service Acquire the dark voltage reference To acquire dark voltage readings follow the instructions in the Using SWS Software section If the data cannot be collected or if the system issues a System timed out or Communications error message there may be a problem with the comp
153. increase the stop wavelength by 1 nm If the problem persists call the service hotline A command error is detected No operator action is required by the laser The SOM recovers from this type of error Laser Timeout The laser is not responding to Check the RS232 connection commands between the SOM AUX1 and the laser Verify that the correct cable is in use VE A value error is detected by the No operator action is required laser The SOM recovers from this type of error 216 Reference Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Error Messages from the Software The error messages generated by the application software are listed in Table 25 with actions to be taken when the messages appear Table 25 SWS Software Error Messages Go fem SOS s00 scriserreguesteem OSS Reference 217 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Detailed Error Messages The error messages generated by the SWS software are listed in Table 26 with actions to take when the messages appear Table 26 SWS Software Error Messages se pit ee ks mob No such file or directory A file or directory required Save the data and files by the program was created Reinstall the deleted software Not enough memory The memory is corrupted Reboot the system No space left on device The disk or device
154. ing files and folders are displayed in the SWS15100 directory when the SWS software is installed e Analysis Folder reserved for results of data analysis e Cache Folder reserved for raw data files required during data collection e DarkVoltage Folder reserved for results of dark voltage measurements e Development Folder containing examples of Visual Basic VB and Visual C using the SWS15100 DLL These examples can be used as templates for the development of specialized application programs Data Default storage location for saved data sets from the measurement results Documentation Folder containing soft copies of the documentation accompanying SWS e Development SWS15100 dlK Dynamic Link Library required to control the acquisition and processing of raw data e Development examples C SWS15100 h Header file containing declarations of functions and global constants lLCacheC Folder reserved for trace data for the channels in IL mode and C band lLCacheL Folder reserved for trace data for the channels in IL mode and L band PDLCacheC Folder reserved for trace data for the channels in PDL mode and C band PDLCacheL Folder reserved for trace data for the channels in PDL mode and L band RefDataC Folder reserved for reference data for the channels in C band RefDataL Folder reserved for reference data for the channels in L band Reference Folder reserved for control module reference data Workspac
155. ing the SWS Setup Test Wizard rrsnrrnnnvnnnvonnrnnnnvrnnnvnnnvenrrrnnnvennnvnnnvenerrnnnnennnee 34 Figure 11 SWS Test and Setup M aard uuusyensanestamemnsavmenatsineuGasanuiuvmknidsijn 35 Figure 12 Black DIP switches on older versions of chassis rasrrrnvnnrnvnnvvannnvernnvevnrenvrrrnnvernne 36 Figure 13 Red DIP switches on newer chassis rrrrrrrrnnrrnnnnrnnnnnvnnnnnrnnennvnnnnnnnnennnnrnnennnenvnnennvennr 36 Figure 14 Additional Chassis DIP Switch Setup ccccceseeeseeceeeeeeeeeeeeeeaeeeeaeseeeeeeeesaeeseaeeeeeetaes 36 Fig re 15 Setup for Adding eG CONV CE Vaa aaia 37 Figure 16 SWS Front SEPP aa stczecetscendccerveceetingsnrcloaueezeastenecdetwedeleradectbamausedatataniaiuuadastengerenss 38 Figure 17 Adapter and Connector ix iccessiusscassevescceesnsnvsstsceneasatsneueebernes sadeensdasbasntesrueanedssduenteenwesneds 40 Figure 18 Universal Connector Adapters srrrrennrnnnnvvnnnvnnnvnnrnnnnvrnnnvnnnvnnrrrnnnvennnennnvenernnnnnennnee 40 Figure 19 Dip Switch Settings on the Data Acquisition Board arranvvernvnnvrrnrnrennnvernvnnrrrnrnrennnne 42 Figure 20 Receiver Address DIP Switch Setup mrrnrrnnnvnnnvennrnnnnvrnnnvnnnvnnrrrnnnvennnvnnnvenernnnnnennnee 42 Figure 21 Starting SWS Testing and Setup Wizard usrernvnnnrnnnnvennnvnnnvnnnrrnnnrennnvennrnnerrernrennnne 45 Figure 22 Interface Gonhguralon um uaismansnuenetkeidsaatkieueniGvsiuuahdijideind 46 Figure 23 Selecting the Parallel Port
156. ining parameters 85 Logging results 87 Selecting Channels 86 ITU grid 86 Selecting parameters 84 Bandwidth 85 Center wavelength 85 Power 85 Start wavelength 85 Stop wavelength 85 Setting the SWS 85 Tab page 81 Application development See Programming Attenuator 113 115 116 Averages 220 See also Status Analysis area Averaging 79 93 Bandwidth Measuring 222 Cabinet 11 Cable Connecting 0 5 m hybrid jumper 27 38 10 m FC PC FC APC cable 27 38 2 m FC PC FC APC PM fiber 27 50 pin ribbon cable 37 50 pin termination cable 31 36 9 pin RS232 27 Power cord 27 Calibrating the Equipment 98 Calibration Absorption lines H C N 111 Calibrating power 114 Equipment required 114 Procedure 114 Setup 113 115 Checklist 2CoHe acetylene cell 104 130 H acetylene cell 106 H C N hydrogen cyanide cell 112 Multiple receivers 108 Power 98 113 Restoring factory calibration 116 Reversing 107 Tunable laser source setup 99 Verifying Re calibration 196 Wavelength 98 Wavelength diagnostics 120 C band 11 68 Channels Selecting 76 Channels Adding See Installation Additional detector modules Characterizing specific devices Fiber Bragg grating in reflection Setup 97 Multiple output devices 96 Measuring IL 96 Measuring PDL 96 Setup 96 Single output devices 93 Measuring IL 94 Measuring PDL 95 Setup 94 Chart area 74 Auto scale 75 Crosshairs 75 Displaying plots 74 Maxi
157. ins the error number 140 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com getChannelPolarization Function Description o O Purpose The getChannelPolarization function retrieves the polarization of the trace for the specified channel in cache memory Note This function returns the last polarization for specified channel the last time any data was collected for the channel To find the latest polarization use getTracePolarization instead C prototype int getChannelPolarization unsigned short chID short polar VB prototype Declare Function getChannelPolarization Lib SWS15100 ByVal ChID ByRef polar As Long Input Unsigned short chID Channel ID for which polarization is sought Output short polar This is a set of integers defined as SO 0 S1 1 S2 2 S3 3 S4 4 POLARIZATION END MARKER 5 Return Value When there is no error the function returns zero When there is an error the return value contains the error number isZeroLossDone Function Description S Purpose The isZeroLossDone function is used to check if a zero loss reference has been performed for the specified polarization on the specified channel C prototype int isZeroLossDone unsigned short chID short polar char timeStamp VB prototype Declare Function isZeroLossDone Lib SWS15100 ByVal chID ByVal polar ByVal timeStamp As Long In
158. ion is called after a call to the processPDL function C prototype int getPDLTrace unsigned short chID double dLam double dPowMin double dPowMax double dPowAve double dPowPdl unsigned short uhDataSize VB prototype Declare Function getPDLTrace Lib SWS15100 ByVal chID ByRef dLam As Double ByRef powMin As Double ByRef powMax As Double ByRef powAve As Double ByRef powPdl As Double ByRef dataSize As Long Input unsigned short chID This is the channel number Programming Guide 143 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Function Description o Output double dLam This is the array of the wavelength position points double dPowMin This is the array of the minimum IL data IL_MIN double dPowMax This is the array of the maximum IL data IL MAX double dPowAve This is the array of the average IL data IL AVE double dPowPdl This is the array of the PDL data unsigned short uhDataSize This is the size of the data that is sent back to the user inside the data arrays Return Value If there is no error the return value is 0 If there is an error the return value contains the error number getAverageZeroLossPower Function Description o O Purpose The getAverageZeroLossPower function is used to get the average power measured during a zero loss measurement This function is called after the zero loss referen
159. ion variable Programming Guide 187 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com FSERIAL FSERIAL Function Sets the source optic module s serial number The serial number is displayed with the IDN Command FSERIAL 188 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Reference Troubleshooting This section is to be used in the unlikely event that the Swept Wavelength System does not perform according to specification It lists the symptoms of some faults with procedures for troubleshooting each problem The procedures described do not require the user to open any of the units or perform any task that requires extensive training Most of the tests require standard electrical and optical measurements Equipment required to troubleshoot the SWS includes optical cleaning fluid and swabs a fiber optics power meter and a wavelength meter operating in the appropriate band The Troubleshooting Flowcharts section contains flowcharts to systematically identify the cause of any fault and in most cases to fix the problem If the equipment failure cannot be corrected by the user an SWS performance checklist in the Recording SWS Performance section is provided for the user to record system parameters and procedures performed when a problem has occurred The checklist is used by the
160. is full Delete unwanted files or try a new device if it is a floppy diskette jon scicemmaner 1 200 Devcespeeiieemr 0 20 s mmer S om menyer 0 00 Communcatonenor 0 2001 Failed to save The device is full Free up space Workspace file 4010 OWB hardware error There is a hardware Check all electrical and problem in the receiver optical connections and try again If the error persists repair is indicated 4020 No controller detected The ribbon cable from the Check the ribbon computer to the receiver connection and try again is loose 4030 No detector detected The ribbon cable from the Check the ribbon computer to the receiver connection and try again is loose 4040 OWB timeout A timeout occurred during Check all optical data collection connections If the problem persists measure the power of the signal going to the input of the control module Check that the SOM is operating table continued 218 Reference Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ea it oe OWB data overflow Invalid Transmitter Polarization State TPS Requested Polarization State is missing Diagnostics not available on your system Call your local JDS Uniphase representative to have your SOM upgraded Disable Diagnostics in the SWS15100 INI file Diagnostics have not been initialized Perform wavelength
161. isan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com START pie 1 Allocate an array of 128 unsigned short integers to hold the channel numbers Set pointers to DATA and WAVELENGTH arrays to NULL Call InitSWS and setPolanzationControl j to 1 if the PDL option is installed INITIALIZE Find number of channels available using getChannelList Information is GET HARDWARE available on the hardware for each INFORMATION channel such as Serial Number Identification and Revision Number using getOW Binfo SELECT IL OR PDL MODE PERFORM IL MODE PROCESSING PERFORM PDL See flowchart INSERTION LOSS MODE PROCESSING See flowchart PDL MODE PROCESSING RELEASE DYNAMICALLY ALLOCATED MEMORY Figure 96 SWS Data Collection and Processing Programming Guide 163 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com START GET IL ZERO LOSS DATA ACQUIRE TRACES Y READ TRACES TO MEMORY pe GET IL TRACES FOR SELECTED CHANNELS PROCESS DATA FOR EACH CHANNEL YALL SCANS S COMPLETED y Yes END See flowchart ZERO LOSS DATA IN INSERTION LOSS MODE See flowchart ACQUIRE TRACE Call petTraces to transfer the required traces to memory The first parameter is the pointer to an array containing the channels required and the second is the
162. isplay the absolute power in dBm for the channel belonging to that column move the mouse over a Dark Voltage or Zero Loss cell in any column Performing Dark Voltage Measurement To perform a dark voltage measurement 1 Ensure that all required channels are listed in the Selected column 2 Turn on the dark voltage measurement by checking the Dark Voltage check box 3 Check the Prompt Every Channel check box to do the dark voltage measurement individually for all channels This check box applies only to the dark voltage measurement therefore it is disabled if the Dark Voltage check box is not checked If Prompt Every Channel is checked the dark voltage measurements are taken for one channel for each scan Otherwise the dark voltage is measured for all selected channels in one scan This prompt is used when performing both dark voltage and zero loss measurements at the same time 4 To measure only dark voltage for a number of channels do not check this box 5 Press the Start Reference button The program prompts the user to put a detector cap on each channel on the receiver for the dark voltage measurements 6 Use the detector caps supplied with the receiver to cap the detectors and then click OK A dark voltage measurement is taken and the results are stored and used for all subsequent power measurements Operating and Maintenance Instructions 77 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOU
163. its 1 Parity None Flow Control None 5 Select ASCII Setup from SETTINGS Select the following options Send line ends with line feeds Echo typed characters locally Append line feeds to incoming line ends Wrap text 6 Type IDN lt CR gt A line starting with JDS Uniphase is displayed If the system does not respond to keyboard inputs check the REMOTE LED on the front panel of the SOM The LED should be lit If it is not lit communication between the computer and the SOM has not been established Check the connections and try again If communication cannot be established or if communication is established but the SOM does not respond to keyboard inputs try the other COMM port on the computer If communication cannot be established call the JDS Uniphase service hotline If communication between the SOM and the computer is established perform the following procedure to enter the parameter to be initialized in the SOM where lt CR gt denotes carriage return 1 Enter the following line FCOUNT lt CR gt Correct response from the SOM is a value of 17500 for a C band SOM 2 Enter the following lines FCOUNT 18500 lt CR gt C band or FCOUNT 29700 lt CR gt L band SAV lt CR gt FCOUNT lt CR gt 120 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com 3 Wait for the system to respond with a value of 18500 C band
164. l 42 Dual band selector switch module C L band transmitters 58 Front panel 58 Function 11 Dual transmitters See Dual band selector switch module DWDM 9 Dynamic Link Library Architecture 121 Binary files 123 Components 122 Development environment 122 Error messages 157 Functions 124 Installing 121 OWB 121 Error messages Dynamic Link Library 157 Interface error returns 128 Source optics module 213 SWS software 214 Tunable laser source 212 Factory settings Data acquisition board 42 Restoring calibration values 116 Tunable laser source error 212 Fiber Bragg grating Control module 97 Measuring Insertion loss 97 PDL 98 Setup in reflection 97 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Using a circulator and reflector 89 File menu Configuration window 66 Close window 66 Exit 67 New window 66 Open data set 66 Open window 66 Open workspace 66 Print 67 Save analysis results 67 Save data set 66 Save workspace 66 Save data set dialog box 67 Firmware displaying version 59 Flatness 3 85 221 Measuring 224 Flowcharts Programming 160 Troubleshooting 196 Formula Smoothing 93 Four state polarization controller 92 220 Connecting 92 Front panel 58 59 Manual control 62 Fuses 5 General Information and Specifications 9 Getting Started 21 GPIB Addressing 170 Changing address 62 HA9 See Attenuator Hardw
165. l Connector Adapters section for more information on UCAs 26 Getting Started Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com To install the source optics module and the tunable laser source in the transmitter cabinet 1 10 11 12 13 14 Using the hardware provided install the tunable laser source in the lower opening in the transmitter cabinet as shown in Figure 3 Lift the connector cover on the laser source The cover is marked by the laser warning sign and shields the output port Connect the FC APC end of the 2 m FC PC FC APC PM fiber to the Optical Output port on the laser The green sheath on the end of the fiber signifies an FC APC connector This green connector goes into the laser input Route the PM fiber through the left most grommet in the lower fiber routing panel Push the fiber through the rightmost grommet and out to the front of the panel Using the hardware provided install the SOM above this panel Connect the PC end of the 2 m FC PC FC APC PM fiber to the Laser In port on the front of the SOM Using the 0 5 m FC PC jumper connect one end to the Signal Cond In port and the other end into the Signal Cond Out port both of which are at the front of the SOM The space above the laser source behind the fiber routing panel can be used to stow the jumper Using the 9 pin RS232 serial cable connect one end to the RS232 input at the back
166. l receiver can be installed only as the first receiver in a daisy chained series of receiver chassis To install the receiver 1 Connect the supplied parallel port cable to the parallel port on the computer and to the parallel port connector on the two channel receiver If the receiver is being daisy chained connect the 50 pin ribbon cable to the connector on the back panel of the two channel receiver Connect the other end of the 50 pin ribbon cable to the uppermost 50 pin connector on the OWB10002 chassis Plug the unit into a power socket ensuring that the ground for this receiver is the same ground as for the other receiver modules and the computer The optical connections to the two channel receiver are on the front panel Connect the output of the source optics module to the input of the receiver left most FC APC connector The output of the control module is located beside the input of the receiver Use the supplied FC PC FC APC 1 m jumper to connect the output of the control module to Channel 1 or Channel 2 Connect the other end of the FC APC cable to the Control Module output The receiver cannot be tested at this point Proceed with the rest of the installation including installing the software as explained in the following sections Installing the Data Acquisition Board The computer system can use the optional data acquisition board instead of the parallel interface To install the data acquisition board 1 C
167. lable full size ISA slot The minimum hardware requirements for the user supplied personal computer are listed in Table 11 National Instruments is a trademark of National Instruments Getting Started 43 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Table 11 Minimum Hardware Requirements Processor 200 MHz Pentium microprocessor Operating System Microsoft Windows 95 98 or Windows NT Storage 1 GB free hard disk space required 2 GB recommended Monitor SVGA 38 cm 15 in 1024 x 768 resolution required Drives CD ROM drive Pentium is a registered trademark of Intel Corporation To install the software 1 Restart the computer 2 Ensure that the transmitter and receiver are connected and powered on as described earlier in the Connecting the Transmitter section 3 Make sure the SOM is set to sweep in Polarization Mode 0 and press the Execute button on the source optics module to start the transmitter and enable the receiver to process the optical inputs to it 4 Insert the SWS CD ROM which is packed in the receiver box into the computer drive From the Windows Start menu choose the Run option The Run window appears 5 Type d setup if using drive d and click the OK button The SWS software is installed on the computer 6 Follow the steps of the installation program until it brings you to the SWS Testing and Setup Wizard 44 Getting Sta
168. le between the two To install the connectors follow the procedure outlined in the previous section Figure 17 shows a UCA and a connector The difference between the FC PC and FC APC universal connectors is shown in Figure 18 Getting Started 39 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Figure 17 Adapter and Connector In Figure 17 the top part is a connector insert for example FC or SC The bottom part is a UCA Use care when removing and cleaning UCAs There are two types of adapters FC PC and FC APC Figure 18 Do not interchange the two types The UCAs on the source optics module are of the same type FC PC The adapters on the receiver control module are both FC APC The two types can be distinguished by observing the alignment slot on the connector end In FC PC adapters the slot points to the straight edge or side of the square In FC APC adapters the slot points to a corner If an FC PC adapter is installed on the control module the FC APC ferrules do not mate properly which leads to excessive losses Figure 18 Universal Connector Adapters switch 40 Getting Started Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Installing the Compact Two Channel Receiver The compact two channel receiver is an optional substitute for or add on to the larger OWB10002 chassis based receiver The two channe
169. lity Instrumentation Guaranteed 888 88 SOURCE www artisantg com Function Description o O Return Value If there is no error and another IL data value has been acquired but PDL acquisition is not yet finished the return value is 0 If there is no error and all four IL sets of data for all four polarization states have been properly acquired the return value is 1 If there is an error the return value contains the error number processPDL Function Description O O Purpose The processPDL function is used to calculate the PDL for all the channels in the user list The user acquires the IL data for all channels in the channel list through calls to the acquirePDL function If one of the four sets of required IL data S1 S2 S3 or S4 or one channel data value is missing the function returns an error C prototype int processPDL unsigned short chList unsigned short unNumChannels VB prototype Declare Function processPDL Lib SWS15100 ByRef chList ByVal numChannels As Long Input unsigned short chList This is the list of channels selected for acquiring all four references unsigned short uhNumChannels This is the number of channels in the list Return Value If there is no error the return value is 0 If there is an error the return value contains the error number getPDLTrace Function Description Purpose The getPDLTrace function is used to get the PDL traces for a specific channel This funct
170. logy Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com General Information and Specifications General Information This user s manual for the Swept Wavelength System SWS contains complete operating instructions for using the SWS15100 and SWS16100 systems For information on using the tunable laser source as a stand alone unit see the SW515101 and SWS16101 Tunable Laser Source User s Manual document SD000319 For information on the polarization controller see the SW515104 Four State Polarization Controller User s Manual document SD000327 Wavelength division multiplexing WDM and especially dense WDM DWDM has become a key solution to the ever increasing demand for network capacity and flexibility Network device characteristics vary with wavelength therefore WDM systems are forcing the wavelength characterization of all components used in the system Accurate characterization of the wavelength dependence of a device previously required many time consuming measurements For example in the past characterization of a device over a range of 30 nm with 0 1 nm resolution required 300 measurements and took three or four hours to complete The Swept Wavelength System determines wavelength characteristics of devices used in optical networks The SWS tests passive optical components for performance The SWS can be used to test devices under operating conditions to maximize the efficiency of components T
171. lues section Select channels for which analysis is to be performed by highlighting the channel from the list of available channels Select the engineering units by using the radio buttons in the top left of the Analysis Setup dialog box Define the parameters by entering the appropriate values in the following fields e Start Wavelength mandatory This value is the lower bound of the wavelength range over which analysis is conducted For C band the value must be greater than 1520 nm For L band the value must be greater than 1541 nm e Stop Wavelength mandatory This value is the upper bound of the wavelength range over which analysis is conducted For C band the value must be less than 1570 nm For L band the value must be less than 1630 nm e MinPower and MaxPower optional but recommended These values are calculated each time by the SWS program but the user has the option to include these values in the analysis table e Bandwidth Center Wavelength normally optional but mandatory for calculating flatness When this field is checked the user must enter parameters to define how the calculations are performed e Ref Peak Select whether bandwidth and center wavelength are to be measured with respect to maximum peak or minimum peak e Relative To This section consists of two parameters In the first parameter the user selects whether the measure is to be taken with respect to the peak or to the base of the trace
172. m semen On power up the laser displays Initializing for longer than 2 minutes When the Execute button is pressed on the SOM an error message increase span is displayed on the SOM 190 Reference Re initialize the laser e Switch off the laser using the key e Wait at least 30 seconds e Power on using the key If the laser does not initialize contact the local JDS Uniphase representative or call the service hotline Check optical connections e Verify that the green end of the PM fiber is connected to the Optical Output port of the tunable laser source Verify that the other end of the PM cable is connected to the Laser In port of the source optics module Clean the fiber connectors Reconnect and try again If the problem persists check the parameters of the source optics module Verify that the start wavelength is 1519 5 nm for C band or 1540 8 nm for L band Verify that the stop wavelength is 1575 nm for C band or 1635 nm for L band If the parameters are not as indicated reset the parameters and try again If the problem persists check the power from the laser power e Use a power meter to measure the power from the laser If the laser power is significantly gt 3 dBm lower than the value displayed on the laser display the laser needs repair Contact the local JDS Uniphase representative or the service hotline to arrange return of the laser to the factory table conti
173. match the bit values of the binary number SRE 216 sets the service request enable register bits to 11011000 Service Request Enable Query Function Returns the contents of the service request enable register as an integer that when converted to a binary number represents the bit values of the register SRE returns 195 if the service request enable register is set to 11000011 Read Status Byte Query Function Returns the contents of the status byte register as an integer that when converted to a binary number represents the bit values of the register The bit value for bit 6 of the register is the MSS bit value not the RQS bit value STB returns 170 if the status byte register is set to 10101010 Programming Guide 179 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Self Test Query Function Initiates a self test of the source optics module and returns 0 when the source optics module passes the self test or 1 if it fails During self testing established optical paths are interrupted for approximately 10 seconds while the position of the switching mechanism is verified WAI Command Function Prevents the source optics module from executing more commands or queries until all previously pending operations are complete There are no consequences to this command because all commands are executed sequentially therefore any subsequent command
174. mize 75 Pan 75 Reset 75 Zoom 75 Chassis See Receiver Circulator 97 Cleaning connectors 24 Common area 75 Selecting channels 76 Starting and stopping 76 Index 229 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Compact two channel receiver Front panel 57 Installing 41 Rear panel 57 Compliance 8 European Community CE 8 FDA CDRH 8 Computer Connecting 38 Hardware requirements 43 Connecting the Transmitter Receiver and Computer 38 Connectors Cleaning 24 FC APC 26 FC PC 26 Inspecting 52 Troubleshooting 188 Contents 1 Control module Adapters 39 Display 51 Front panel 57 Function 11 Installing 30 41 Output 96 Crosstalk 86 Cumulative crosstalk 86 221 Measuring 225 Total crosstalk 221 Dark voltage Measuring 77 90 Referencing 77 Data acquisition board DIP switch 41 Installing 41 Replacing the parallel port 43 Software 52 Testing 52 DBSSM See Dual band selector switch module Detector adapter Installing 39 Detector cap 39 42 77 Detector module Adding 38 Attaching a DUT 39 Channels 11 96 Display 51 230 Index Front panel 58 Installing 30 38 Diagnostics Wavelength 117 Dialog box Changing Scales 80 Interface configuration 46 Port selection 47 Save data set 67 Selecting Channels 86 DIP switch Data acquisition board 41 Receiver 36 42 DLL See Dynamic Link Library DMA channe
175. mode 69 PDL mode 68 69 Transmitter PDL states 68 Mueller matrix method 92 Noise See also Polarization dependent loss Accuracy of PDL measurement 93 Specification 54 Operating and Maintenance Instructions 55 Operating environment Humidity 22 Storage 22 Temperature 22 Ventilation 22 Output ports Insertion loss 52 Replacing 29 Testing 52 Troubleshooting 53 OWB See Dynamic Link Library Parallel port interface Selecting 46 Testing 52 Parameter values 82 Passband 85 221 Measuring 223 Passive optical devices 93 PDL See Polarization dependent loss Plot Insertion loss 79 Polarization dependent loss 79 PM fiber See Cable Polarization dependent loss 221 Interpreting PDL data 93 Measuring 17 92 95 Plotting 79 Reducing noise Averaging 93 Smoothing 93 Setup 95 Verifying noise 195 Polarization modes 68 Polarization stability 78 232 Index Polarization states 68 Detecting 190 Power Calibration Setup 113 115 Window 114 Output 16 Requirements 5 SOM settings 186 Power meter 52 53 113 115 187 192 Process and Display Options 78 Averaging 79 Changing axes Scales 80 Units 80 Chart properties 80 Display type 79 Inverting a data set 80 Overlaying a trace 80 Retrieving a trace 80 Saving a trace 79 Scan mode 78 Selecting chart line styles 81 Smoothing 79 Tab page 78 Programming 121 Flowcharts 160 Acquire Trace 164 Additional PDL Proces
176. mode the PDL of the device is very noisy While making PDL measurements the PDL shows only noise at all wavelengths 198 Reference If the power going into the SOM is too low below 3 dBm the laser is the source of the problem If the laser is the problem Stop the scanning of the laser through the SOM Press the REMOTE button on the laser if the REMOTE LED is on Calibrate the laser power Measure the output of the laser If the laser power remains low call the local JDS Uniphase representative or the service hotline Verify PDL noise The PDL computation is sensitive to the power at which the measurement is made Ignore PDL measurements for insertion losses greater than 40 dB If the PDL is noisy only at high insertion losses there is no problem If the PDL is noisy at low insertion loss try averaging over a few scans or filtering or both If the problem persists call the local JDS Uniphase representative or the service hotline Verify that PDL measurements are being made Check the LEDs on the front panel of the polarization controller The displayed PDL must cycle from 1 through 4 If the cycle stays at one polarization or if the display shows 0 at any time check the RS232 connection to the polarization controller The correct cable has part number ED009172 A 00 One end plugs into the AUX2 port on the SOM the other end connects to the RS232 Control on the back panel of the polarization
177. mon to C and L band systems SWS15106 Receiver control module for either C or L band operation 14 General Information and Specifications Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Specifications The optical specifications describe the warranted characteristics of a unit Supplementary specifications describe the typical non warranted performance of a unit SWS15100 System Table 5 outlines the optical specifications for the SWS15100 system Table 5 SWS Optical Specifications Fiber type Siecor SMF 28 Transmitter SWS15102 source optics module ferrule style Receiver SW15110 ferrule style General Information and Specifications 15 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com table continued 0 001 nm 25 2 C lt 15 minutes Maximum recommended laser output power 3 dBm Minimum power required by DUT in insertion loss 15 dBm mode Minimum power required by DUT in PDL mode 20 dBm Loss measurement accuracy in insertion loss 0 1 dB 0 to lt 20 dB mode without four state polarization controller 0 2 dB 20 to lt 40 dB 25 5 C gt 15 dBm input to DUT 0 3 dB 40 to lt 50 dB Loss measurement accuracy in PDL mode with 0 1 dB 0 to lt 10 dB four state polarization controller 0 15 dB 10 to lt 20 dB 25 5 C gt 20 dBm input to DUT 0 2 dB 20 to lt
178. mum power measured at output port 4 Action Disconnect Signal Cond Out System l running What is the maximum power measured at output ee a 1 Action Remove the connector at the TX IN port on the CM of the receiver Receiver Measure power at this point What is the power going to the CM How many receiver chassis are connected Is a compact two channel receiver installed How many channels does the receiver have Action Reconnect the input to the CM What is the power going to the DUT Action Check the connection to the receiver Is the receiver connected properly to the computer Are the LEDs on the software Software receiver lit up running Reference 211 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com component Gonation measurement Answer commen What does the CM display read Do the LEDs read C001 YES C002 etc up to the largest channel available Is the SWS program Software running correctly Is an application running that was developed using the DLLs SWS software running What mode has been selected What polarization mode has been selected using software is the averaging setting Mode Weight Number of samples Are the traces displaying properly Have the markers been enabled How many channels have been selected for analysis Is the program r
179. mum of four values is recommended have been acquired by increasing the attenuation clicking the Acquire Voltage button inputting the Input Power and clicking the gt button The Acquire Dark Voltage button becomes active during the process Delete any Input Power and Avg Volt reading by clicking the left arrow button beside the Input Power column Click the Acquire Dark Voltage button Dark voltage is the residual power left in the system when there is no light going through the system A message is displayed asking the user to cap the detector or terminate the fiber To do this for example on the HA9 attenuator press the key Alternately put the cap on the detector module on the receiver The dark voltage is displayed in the Dark Voltage field Click the Calibrate button There is a prompt to save old data to the computer before writing over the data or write over the data without saving the old data The calibration information is saved Repeat the process for each channel Calibrated channels appear in the Calibrated Channels list Click the First button to redo all measurements or the Selected button to redo measurements for selected channels only Activate the HA9 attenuator again by pressing the oo key When the testing is finished disconnect the HA9 attenuator wave meter and power meter Restoring Factory Calibration Values Factory power and wavelength settings can be restored using the SWS software Reset is done for
180. n 125 Initializing and Referencing the SWS rrrrnvnnnrnnnnrnnnnvnnnvnnnrnnnrrrnnnennnvnnnrenenneenn 125 Insertion Loss Functions seansen edabmdaadndssdaet 125 Polarization Dependent Loss Functions c cceeeceeeeeeeeeeeee entree eeeeeeeneeeeeeeeeeaas 126 Choosing between C and L Band mssrnnnvennvnnnnrvnnvvnnnvnnnvnnerrrnnnennnvnnnrenerrnnnnennnene 126 Analytical FUNCOMS REE E antes 127 Miscellaneous Functions cecezsscceecdcucetecsecsnscesevorsscaces 2bcsettasienenaccntesseraversuescaveses 128 Finishing Your SWS Session urnvannvnnavnnnnennnnvnnnvnnavnnnnennnnvennnnnavnnnnennnnnesnennsenenn 128 Interface PETE sts csc charges a ae R E 129 Tel 251 tec ae ti ce cece sect ce wanes E E 129 Ugo 4 11 W ACS EE EET EE EN EN 129 fe EI feels he gt 0 EEE EEE 130 g tChannelPolarizatio RE 130 EDDA E 130 getAverageDarkVoltagePower rrnnnnnnnnnnvnnnnnnvnnnnvnnnnnvnnnnnvnnnrnrennrrrnnnnrrensnrrnnsnnnnne 131 TUNE errereeeee eneree eee ee eer ee eee ere acters reer ener ee ree ere 131 1 18 EE ERE 132 getTracePolarization EN 132 g tDala er RER RE EEE NE ERE 133 AUTEN RE asta Raa aout ae amal ea E 133 PDA VO ee 134 getlLTrace vade 134 PENN en eee eee eee eer ee eee eee 135 PEN 136 GEIS SIS RE 137 Ui SAN areereeyesne tc ores ee ee eer teeter eee ae ere eet eet ee eee eee 138 DEE me ee ee eer NRS 138 SetPolarizatioNCOntrOl cccccceeeceee cece eeeeeeeeee cee eeeeeeeeeeeaeeseaeseaeeeeeseneeseeeneeeeeeteaes 139 9 sj ges 4
181. n the pLamData array unsigned short dataSize This is the size of arrays pLamData and pPowData allocated by the user This is the size of the acquired trace retrieved by the user using the function getDataSize double dStartWave Specifies the wavelength at which to start processing double dStopWave Specifies the wavelength at which to stop processing unsigned short refpeak This is an integer set of values MAX_PEAK_REF 0 find maximum peaks MIN PEAK REF 1 find minimum peaks unsigned short baseref This is Boolean For minimum peaks the baseref is 1 and the bandwidth of the peak is calculated from the base of the peak For maximum peaks the baseref is 0 and the bandwidth is calculated from the peak 150 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com double interLevel The interpolation level is the height from the peak where the bandwidth is calculated unsigned short uhRefWave This is the reference wavelength or the nominal center wavelength around which the passband is computed Output unsigned short pdPassBand This is the computed passband in the wavelength range specified Return Value When there is no error the function returns zero When there is an error the return value contains the error number getFlatness Description The getFlatness function computes the flatness of the trace in the pPowData power
182. n the two wavelengths r AL Finding Bandwidth using a Threshold Relative to the Peak The algorithm used by the SWS to find the bandwidth is 1 Find the specified peak signal level the peak Store the wavelength at which this occurs 2 Ata power level x dB from the peak found in Step 1 find the shorter wavelength L nearest to the signal The wavelength is determined by finding two data points one to the left of the wavelength at which the signal crosses x dB and one to the right of that wavelength The wavelength AL corresponding to x dB is interpolated from these two data points The search is begun starting outward left from the peak position 3 At the same level x dB from the peak find the longer wavelength Ar nearest to the signal as in Step 2 The search is begun moving outward right from the peak position 4 Compute the bandwidth of the device as the difference between the two wavelengths Ar AL Averages Two types of averaging are implemented The first type is averaging over a number of traces which is done in single scan mode In this form of averaging n successive scans are added together and the sum is divided by n The addition and averaging are performed on the insertion loss in linear scale not in dB At the end of each scan the current average is converted to dB and displayed The second method is weighted averaging used in continuous scan mode Weighted averaging is performed using th
183. n wavelength range is added Re calibration for Power is not required when an additional wavelength range is added It is recommended that wavelength calibration be verified once each week when the system is in constant use and each time the system is used when it is used infrequently Calibrating Wavelength in the Swept Wavelength System When do I Confirm Wavelength Accuracy When do I Calibrate The SWS15100 and SWS16100 instruments are designed to operate with a wavelength accuracy of 3 pm To verify System calibration connect a gas reference cell such as that within the SOM as you would at DUT and make a measurement Compare measured absorbtion line wavelengths with the tables given later in this section To Calibrate the Wavelength Scale Wavelength calibration is a relatively simple procedure that takes little time the procedure consists of 7 simple steps Before proceeding ensure that all equipment is fully warmed up ie switched on for at least two hours Ensure the tunable laser source is properly calibrated Connect the acetylene gas cell to your receiver Enter the Calibration Dialog Box in the SWS version 3 0 2 software Acquire a trace of the gas cell with its pronounced absorption peaks Operating and Maintenance Instructions 99 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com e Calibrate the SWS to the acetylene trace e Save the calibration values to the
184. nating current American National Standards Institute Angled polished connector angled physical contact American National Standard for Communication Information Interchange Bandwidth Compact disk read only memory Control module Center wavelength Dual band selector switch module Direct current Dual inline package Dynamic link library Detector module Direct memory access Device under test Dense wavelength division multiplexer Extended capability port parallel printer Electrically erasable programmable read only memory Electrical Industries Association Enhanced parallel port Electrostatic sensitive device Fiber Bragg grating Full width at half maximum Gigahertz General purpose interface bus Graphical user interface Institute of Electronic and Electrical Engineers Insertion loss Input output International Telecommunications Union Light emitting diode Terms 1 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com MAV Message available bit MB Megabyte MDI Multiple document interface NIST National Institute of Standards and Technology nm Nanometer OWB Optical Work Bench PC Polished connector physical contact PDL Polarization dependent loss pm Picometer PM Polarization maintaining PMD Polarization mode dispersion PPI Parallel port interface RAM Random access memory RMA Return material authorization SCPI Standard Commands for Programmable
185. ncy range of 50 to 60 Hz The typical maximum power consumption is 1500 W Fuse Type The fuse type for the receiver is T2A 250 V The fuse type for the source optics module is T1A 250 V The fuse type for the tunable laser source is T4AL 250 V Laser Specifications Laser specifications are outlined in Table 1 Table 1 Laser Specifications Wavelength 1520 to 1570 nm SWS15101 laser source C band 1540 to 1630 nm SWS16101 laser source L band 1310 nm source optics module 6 dBm or 4 mW SWS15101 3 dBm or 2 mW SWS16101 and 3 dBm or 0 5 mW SWS15102 or SWS16102 Safety 5 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Under the laser classification of the US Food and Drug Administration FDA Center for Devices and Radiological Health CDRH the lasers contained in the system are Class lasers CLASS 1 LASER PRODUCT Class lasers are safe under reasonably foreseeable conditions of operation There can be more powerful lasers inside the unit but no harmful radiation can escape the enclosure Safety Instructions The following safety instructions must be observed whenever the unit is operated serviced or repaired Failure to comply with any of these instructions or with any precaution or warning contained in the user s manual is in direct violation of the standards of design manufacture and intended use of the unit JDS Uniphase assumes
186. ndwidth Description The getLocalBandwidth function calculates the bandwidth of the largest peak that is contained in the pPowData power array within a specified wavelength range Call this function only after obtaining the pPowData array through a call to the getlLTrace function The characteristics of the peak as refpeak interLevel and baseref must be filled by the caller C prototype int getLocalBandwidth double pLamData double pPowData unsigned short dataSize double dStartWave double dStopWave unsigned short refpeak double interLevel unsigned short baseRef double pBandwidth VB prototype Declare Function getLocalBandwidth Lib SWS15100 ByRef pLamData As Double ByRef pPowData As Double ByVal dataSize ByVal dStartWave As Double ByVal dStopWave As Double ByVal refPeak ByVal InterLevel As Double ByVal baseRef ByRef pBandwidth As Double As Long Input double pLamData The pLamData array stores wavelength points of the trace double pPowData The pPowData array stores IL power level dB scale points Each point from the pPowData array has a corresponding point in the pLamData array unsigned short dataSize This is the size of arrays pLamData and pPowData allocated by the user and is the size of the acquired trace returned by the function getDataSize double dStartWave This specifies the wavelength at which to start processing double dStopWave This specifies the wavelength at which to stop processing
187. ne output port on the source optics module the two or four output port option can be specified at the time of ordering The ports are labeled Output 1 Output 2 Output 3 and Output 4 on the front of the source optics module To reconfigure the system the output modules can be changed Order option ED006412 A 00 for one output option ED006412 A 01 for two outputs or ED006412 A 02 for four outputs To replace an output module 1 Unscrew and gently remove the output port cassette from the front of the source optics module Figure 5 eg O00 OUTPUT 1 OUTPUT2 OUTPUT3 OUTPUT 4 Figure 5 Four Output Ports on Source Optics Module 2 Disconnect the FC PC connector attached to the back of the module Ensure that no stress is applied to the jumper while disconnecting or connecting the output module 3 Clean and connect the FC PC connector to the new module being inserted 4 Insert the output cassette by feeding the fiber back into the source optics module and pushing the cassette back horizontally into its slot Screw the plate to the front of the source optics module Installing the Standard Receiver Chassis The receiver chassis houses three elements Getting Started 29 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com e Control module e Detector module e Dual Band Selector Switch Module optional The control module and detector module are wrapped in ant
188. new image Next click the Pan button The image is moved so that the desired location is at the center of the plot Clicking the Pan button again results in the image moving by the same amount as before Reset The Reset button is pressed to change the plot scales to fixed values This button is used to return the image to a standard scale Autoscale Pressing the Auto Scale button redraws the plots with the most suitable scales for both y axes All data is then displayed at the highest resolution Crosshairs The crosshair feature enabled by checking the Show Crosshair check box displays the coordinates in the boxes to the right of the check box Common Area The Common area of the configuration window shown in Figure 65 is for channel selection and to acquire new data and references Channels Available Selected 0002 0001 gt 0006 gt gt Refresh Ea lt lt Start Acquisition Stan Acauisitiar i Figure 65 Common Area Operating and Maintenance Instructions 75 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Channel Selection All available channels are shown in the list on the left of the screen To select all channels press the gt gt key To deselect all channels press the lt lt key To select a particular channel highlight the channel in the list on the left and press the gt key To highlight one or more
189. ng Guide 155 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Function Description When there is any error in information retrieval the function returns an error number 156 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com setUnits Description The setunits function sets the units for the X axis to either nm or GHz and the Y axis to dB or linear C prototype void setUnits unsigned short uhXunits unsigned short uhYunits VB prototype Declare Function setUnits Lib SWS15100 ByVal uhXunits ByVal uhYunits Inputs unsigned short uhXunits Two constants UNITS NM and UNITS GHZ are valid inputs for the X units unsigned short uhYunits Two constants UNITS DB and UNITS PERCENT are valid inputs for the Y units Return Value When there is no error the function returns zero When there is an error the function returns an error number getUnits Description The getunits function finds the current units for the X axis either nm or GHz and the Y axis dB or linear C prototype void getUnits unsigned short uhXunits unsigned short uhYunits VB prototype Declare Function getUnits Lib SWS15100 ByRef uhXunits ByRef uhYunits Outputs unsigned short uhXunits One of two constants UNITS NM and UNITS GHZ are returned for the X units unsigned s
190. nge for the Bands tested Subsequent calibration see Calibrating the Equipment may be necessary to ensure the specified accuracy 4 JDS Uniphase SWS Testing and Setup Category Current Settings Status 1 Checking far VO interface and YO bedoos AT DIO 32x Passed Connection between the PC and thy Emsa OWB Receiver ue NO Add 06249 Factory Song 2 Checkiny for Dual Bund Switch Swa oa b Feed SWS16103 es T OC Passed Ongs 3 Checking for Communication between the Source Optie Module SOM Transmitter andthe OWB gt 1520 Passed Receiver Update the Nominal Size Gaal suu 188 1810 p for cach Band gt re re ae ate 4 Update Wavelength Calibration Constant MO and L 9 amas W Bend 51916319755995 549579531 3761 4 Bend 900 264 54185101 312 Passed Figure 28 The SWS Testing and Setup Wizard Test complete 16 This section will fail if the MO and L wavelength calibration values are missing or out of range Once all the sections are successfully completed click the Close button to return to the SWS Setup program 17 Please also note that the SWS Testing and Setup Wizard can be run at any time when you make any changes in the SWS setup and you wish to test an overall system s performance The Wizard can be launched using a shortcut located under the Start button 50 Getting Started Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com
191. nit only to the address given at the beginning of this document Getting Started 23 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Cleaning Connectors Caution e Connecting damaged or dirty fibers to the unit can damage the connectors on the unit Never force an optical connector Some connectors have a ceramic ferrule that can easily be broken Optical cable ends need to be cleaned before using them with the unit The following items are required for cleaning e Filtered compressed air or dusting gas for example Tech Spray Envi Ro Tech Duster 1671 gas available from http www techspray com 1671 htm e Lint free pipe cleaners for example from 3M or lint free swab Lint free towels for example 10 x10 cm or 4 x 4 in HydroSorb Ill wipers available from http Awww focenter com acctech hydrosobr_wipers htm e Optical grade isopropyl alcohol or optical grade 200 ethanol do not use rubbing alcohol which contains 30 water To clean the connectors 1 Blow the sleeve with filtered compressed air Figure 2 sleeve ferrule Figure 2 Connector Cleaning connector type can vary N Apply optical grade isopropyl alcohol or optical grade ethanol do not use rubbing alcohol to a small area of a lint free towel and rub the end of the ferrule over the wet area 3 Wipe the ferrule on a dry area of the lint free towel Using the dusting gas or compr
192. nnnnnnnnne 90 Figure 77 Setup for Zeroing f r an FB Lu csc ccssseencenssecadentideenstsaencormenrsscennendadendaanenserasnteeatorseeeides 91 Figure 78 Acquiring a Zero Loss Reference aaevssenenagsumsmiddusaseddkknletniddvgmeke 95 Figure 79 Characterizing a Single Output Device rrrnvrnnnvnnrnnenvrnnnvnrnvnrrrrnrnvennnvnnnrenernnennennnne 96 SD000317 Rev G January 2001 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Figure 80 Characterizing a Multiple Output Device urrarnrvrnrrnnn venn vvnnnvnrrrrnrnvennnvnrnrnnerrernrennnne 97 Figure 81 Setup for Characterizing the FBG sciisciccccccsstcscecsseectscesscetacesssctteneseandeastnedsanencenscebeasedies 98 Figure 82 Tunable Laser Source Calibration Setup urrrn ran vrrvrnnrnnnvnnnnnnvrnnrrrrnnnrnrnnennennvennnn 100 Figure 83 Set up the system in this way to calibrate receiver rmranrrannvrrnrvnrr vnr renn nvernrnnrrnennn 101 Figure 84 Select the Calibration option from the menubar ee eee eeeeeeeeeeeeeeeeeeneeeeteeteereeaes 102 Figure 85 Select the Calibration option from the menubar eee eee eeteeeeeeeeteeeteeneeeeteeeeeeeeaes 102 Figure 86 C Band Trace using 12C2H2 Acetylene Cell surnrnnnrrnnnvvnnnvnrnrnnrrrnnnrennnvnnnvnnrrnnenn 103 Figure 87 L Band Trace using 13C2H2 Acetylene Cell urrnrrnrnnnrrnnnvvnnnvnnnvnnvrrnrnrennnvernrnrernennn 104 Figure 88 Absorption Lines of CoH Ac
193. nnnvnnnvnnnvnnnnnnnnnnnnnvnnnvnnnnnnnnnnnnnnnnnvnnnnnnnnennn 5 SE ENST ieee emer emer eter pee ear one re eee are RE rer 5 lS 00 ERE a E cae 5 Disconnecting from Line POWer srnrnnvnnnnnvnnnnnvnnnnnvnnnnnnnnnnnvnnnnnnnnnnnnnnnnnnnnnnnnnnennnennn 5 Line Power Requirements rranvnnnnnvnnnnnvnnnnnvnnnnnvnnnnnvnnnnnvnnnnnvnnsnnnnnnnnnnnnnnnnnnnnnnnnnnnennn 5 EE ERE EE EEE EE EN ENE 5 Laser SPECNGAONS Lana an ee ee 5 Safety DELE 0 ER EE EE 6 Before Initializing and Operating the Equipment srernrenonrnnnvvnnnvnnnrnnerrnnnvennnvnnnnnrnn 6 Operating GE EE 6 Safety SANE Leren E aa Ee EA E EAA A EAE E AAK EAN R EES 7 511 9 RT RE a ee E Te 8 CE ONIN ONAN cnet eee eterna toca tee emaciated de 8 FDA CDRH NELS 8 General Information and SpecificatiOnS rrssrrravnnnvnnnnvnnnnnnnnvnnnvnnnnnnnnnnnnnnnnnvnnnnnnnnnnnnnnnnnvnnnnnnnnennn 9 General UT OIA EE EE 9 Transmitter and Cabinet RER 11 FN 11 Da taAcgq isition ao EE 12 JO EE EE ARE EEE EE RE 12 User Supplied Computer rrnnnrnnnnvnnnvonnrnnnnvvnnnonnnvennrnnnnrennnennnnenernnnnnennnennnrenennnenn 12 FN 12 ee es REE RR 12 Standard CCesSories mmsnnnarnnnnennnnvannvnnavnnnnennnnvennnnnaennnnennnnnennennsennnnesnnnresnennsenen 13 Optional Components and Accessories mrrvnrnvrnnnvnnnvenrrrnrn venn nvnnnrenerrernrennnnernnennn 14 Se RR eee 15 SVS TS 100 SEE Ludde ntueepdues 15 TERM EL vanene 17 FAN 20 Getting SATTE sara 21 Before Initializing and Operating the Equipm
194. no liability for the customer s failure to comply with any of these safety requirements Before Initializing and Operating the Equipment M Inspect the equipment for any signs of damage and read the user s manual thoroughly M Install the equipment as specified in the Getting Started section M Ensure that the equipment and any devices or cords connected to it are properly grounded Operating the Unit Warning To avoid the risk of injury or death always observe the following precautions before initializing the equipment e Never look into the end of an optical cable connected to an optical output device that is operating Laser radiation is invisible and direct exposure can severely injure the human eye For more information see the user s manual of the laser source in use If using a voltage reducing autotransformer to power the system ensure that the common terminal connects to the earthed pole of the power source Connect the power cord only to a power outlet equipped with a protective earth contact Never connect to an extension cord that is not equipped with this feature Turning off the power switch does not always block the externally supplied power to the connector at the output of the unit To prevent potential fire or shock hazard do not expose the unit to any source of excessive moisture Do not use the unit outdoors 6 Safety Artisan Technology Group Quality Instrumentation Guaranteed 888 88
195. nsansnudstewencspagasiehpabeeasensuaiaceanuesaedaubesuubieis atensmuriunaivanirsanviees 72 Figure 63 Help Men s he 73 Figure 64 Configuration Window sarennrnnenvnnnnvnnnvonnrnnnnvennnvnnnvenernnenvennnennnvnnerenenvennnennnrenernnennennnee 74 Figure 65 COMMON ATGA sernassa ae aa aE akaid araa 75 PUNE 66 Status Mae 76 Fig re 67 Reference Scans Tab Page chistes tase aia east ce cee 77 Figure 68 Process and Display Page cc cceescceeeneeeeeeceeeeeceeeeeceseaeeeeseeeseeeeeseeeeessneaeenenees 78 Figure 69 Dialog Box to Modify Axis Properties rrrrrrrnnnrrnnnnrnnnnnvnnnnnvnnnnnrnnennnnnennnnnrnnnnnnnrnnnnnvennr 81 Figure 70 Dialog Box to Modify Trace Properties rrrrannrnnnnnvnnnnnvnnnnnrnnnnnvnnnnnnnnennnnennvnnnrnnnnrnnvennr 81 Figure 71 Analysis Tab Window to Display Analysis Results rrrrnnrnnonvrnnonnvnnnnvrnnnnvnnnnnrnnnnnrennr 82 Figure 72 Analysis Setup Dialog Box rrrrnvrnnnvnnnvonnrnnnnvennnvnnnvenrnnnnvrnnnenrnvenrrrnenvennnennnrenernnnnnennnee 84 Figure 73 Selection of Channel or ITU Grid Settings arrnrnvennrrnnnrrnnnvnrnvenrrrnnnvennnvnnnvenerrnnnnennne 86 Fig re 74 Markers PP AGG asi ties ttc cease teustadaccamedons Pestva beeen eek Aa 88 Figure 75 Zeroing the System for a DUT rannvnnnvnnnrnnnnvvnnnvnnnvenernnenrennnvnrnvenrrrnenvennnennnrenernnsnnennnee 89 Figure 76 Acquiring a Reference rrrrnnnrnnvnnnnvvnnnnvnnnnvenanavnnnnavnnnnnvnnnnnennnnnvnnnnnennnnnnnnnnnnnnn
196. ntation Guaranteed 888 88 SOURCE www artisantg com Figure 117 shows how to measure right crosstalk Left crosstalk is measured in a similar manner Crosstalk Shown below is an example of Right Crosstalk The crosstalk is the difference in pow between our reference channel and the adjacent channel SWS calculates the worst case scenario by using as its values the minimum power level in the range around the reference channel a and the maximum power level in the range around the adjacer channel b The crosstalk is the difference between these two power levels a b dB To calculate Left Crosstalk repeat this process using the adjacent left channel To calculate Cumulative Crosstalk add the peak levels afl the adjacent channels and subtract that from the minimum power level in the range around the reference channel Crosstalk a b nm or GHz i E z0 i i F E H 3 23 P s 3 2 f i i__XTalk Range L XTalk Range y i XTalk Range XTalk Range am tired by user I gt am bend by unar Ea atna ye en etry ner gt Figure 117 Calculating Right Crosstalk 228 Reference Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Index Accessories Optional 14 Standard 13 Acquisition Stopping and starting 76 Adapters FC APC 40 FC PC 40 Ferrules 40 Universal UCA 40 Analysis Analysis definition file 83 85 Def
197. nued Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com olem seem When the Execute button is pressed on the SOM an error message increase span is displayed on the SOM LEDs on the Control Module and the Detector Module show garbled digits during SWS software start up not the CM01 C001 C002 etc that is normally expected Computer display is blank on SWS start up If the laser power is within limits Press STOP on the SOM When SOM scanning has stopped press REMOTE on the laser source front panel if the LED is lit Set the laser wavelength to 1520 0 nm Press ENABLE on the laser source Use a wave meter to measure the wavelength If the wavelength varies from 1520 0 nm by more than 200 pm recalibrate the laser Set the laser wavelength to 1575 0 nm Measure the wavelength If the wavelength varies from 1575 0 nm by more than 200 pm recalibrate the laser If the measured power continues to remain low call the JDS Uniphase sales representative or the service hotline Check the pins on the connectors Turn the power off Remove the 50 pin ribbon cable at the back of the receiver chassis OWB Repair or replace pins on the connector that are bent or broken Repair or replace pins on the connector on the computer interface card Reconnect the cable and start the program again If the problem is not solved the receiver needs repair C
198. number of channeis See flowchart GET INSERTION LOSS See flowchart PROCESS INSERTION LOSS TRACE Figure 97 Insertion Loss Mode Processing 164 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com SELECT CHANNEL Call isZeroLossDone to determine if Zero loss measurement is necessary If it is TRUE get the pst ome time when measurement was taken REFERENCE It is recommended that a reference SED e be done at least once a day Yes y pg Take Dark Voltage measurements lt VOLTAGE vr when the system is first set up It is REQUIRED recommended that a dark voltage y measurement be made at least once a day Yes SET UP FOR DARK VOLTAGE GET DARK VOLTAGE GET REFERENCE lt lt WL REQUIRED C CHANNELS DONE Prompts the user to cap or terminate the channel so that no light goes to the detector Follow steps in flowchart ACQUIRE TRACE Next call getDarkVoltage The routine performs all computations necessary and stores the new dark voltage parameter Verify that the user has jumpered the output of the control module to the specified channel Follow steps in flowchart ACQUIRE TRACE Next call getReference Figure 98 Zero Loss Data in Insertion Loss Mode Programming Guide 165 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com START E
199. number of active channels detected and updates the channel list array When there is an error the function returns an error number getOWBInfo Function Description S Purpose The getOWBInfo function retrieves the factory information pertaining to a physical channel C prototype int getOWBInfo unsigned short chID short bPresent char acID char acSN char acREV char acDESC VB prototype Declare Function getOWBInfo Lib SWS15100 ByVal chID ByRef bPresent ByVal acID ByVal acSN ByVal acREV ByVal acDESC As Long Input unsigned short chID This is the channel ID that the user selects to query for information To retrieve the information related to the control module the channel ID must be 0 Output short bPresent When bPresent is 1 then channel chID is present When bPresent is zero the channel hardware does not exist char acID This is a string of size MAX_ID_LEN 9 that contains the module identification char acSN This is a string of size MAX_SN_LEN 17 that contains the serial number char acREV This is a string of size MAX_REV_LEN 9 that contains the revision number char acDESC This is a string of size MAX_DESC_LEN 41 that contains the description Constants MAX ID LEN MAX SN LEN MAX REV LEN and MAX DESGC LEN are defined in the SWS15100 H file Return Value When all required information has been successfully retrieved the function returns a zero Programmi
200. o Option Setup refers to the setup of data transfer hardware the switch configuration and parameters in the SWS15100 INI file The Setup option displays a dialog box with three option tabs General Setup Switch Setup and System Setup General Setup General Setup allows the user to enable or disable the wavelength diagnostics for each available band and to set parameters to fine tune the diagnostics The user can also change the number of points in a trace for each band The General Setup option is shown in Figure 59 70 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Setting Pages X General Setup Switch Setup System Setup Maximum Points 28700 Lambda Max nm 1630 Caneel Figure 59 General Setup Tab Switch Setup Switch Setup allows the user to set the switch configuration The default settings for the SWS are TX1 for C band TX2 for L band and Output is to the control module The Switch Setup option is shown in Figure 60 Setting Pages x General Setup Switch Setup System Setup Switch Number Ej f Ea Txi Bana yx v Tx2 Bend L v Output CM v Figure 60 Switch Setup Tab Operating and Maintenance Instructions 71 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com System Setup System Setup allows the user to s
201. of points in a complete scan char Path This is the path specifying the root directory Output No output Return Value When there is no error the function returns 1 When there is an error the return value contains the error number The error numbers are defined in the file SWS15100 h which is on the SWS CD ROM triggerTrace Purpose The triggerTrace function is used to trigger a new trace Before this function is called call getTraceStatus to ensure that no data is being collected C prototype int triggerTrace VB prototype Declare Function triggerTrace Lib SWS15100 As Long Return Value When there is no error the function returns zero When there is an error the return value contains the error number Programming Guide 129 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com getTraceStatus Declare Function getTraceStatus Lib SWS15100 As Long Return Value When there is no error the function returns the status The status is bit encoded as follows Bit 1 LSB Card busy 1 Card Idle 0 Bit 2 Card Overflow 1 Card Normal 0 Bit 3 ND Active 1 A D Idle 0 Bit 4 to15 Undefined When there is an error the return value contains the negative error number getChannelPolarization Function Description S Purpose The getChannelPolarization function retrieves the polarization of the trace for the specified channel in cache memor
202. old the equipment in the rack Setting and Verifying Default Source Optics Module Values The system as supplied is set with the correct default values To check or change values the default values are e Start wavelength wavelength at which laser scanning of the DUT begins for a C band transmitter 1519 5 nm or for an L band transmitter 1540 8 nm Do not change this value e Stop wavelength wavelength at which laser scanning of the DUT ends in a C band system 1575 nm or in an L band transmitter 1635 nm e Delay _1 s is the time delay between sweeps e Polarizer mode 0 e Power 3 dBm is the output power from the laser e Sweep rate 20 nm s is the rate of wavelength change laser scanning The default values are set at the factory and are based on the model of the SOM To verify or modify defaults see the Setting Source Optics Module Parameters section Powering Up the Source Optics Module and Tunable Laser Source Caution e Acclimatize the tunable laser source for one to two hours after removing it from the shipping carton Allow an additional hour of warm up after the unit has been cycled and left on Always use the key to power down the laser Wait for the laser to park before switching the power off on the back panel After turning off the tunable laser source wait at least 30 seconds before powering it on again To start the source optics module and the tunable laser source 1 Ensure that the tuna
203. onfigure the data acquisition board a Ensure the computer is powered down b Remove the data acquisition board from its ESD bag c Verify the settings of the DIP switches and jumpers on the board Set the DIP switches settings as shown in Figure 19 Getting Started 41 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Figure 19 Dip Switch Settings on the Data Acquisition Board 2 Verify that the DMA channel is selected properly For this place jumpers in the upper right two rows and the lower middle two rows 3 Set the interrupt level by jumpers in Row 4 from the left and Row 3 from the left on W2 4 Verify that STANDBY and BRDCLK OSC are jumped together on W3 These settings are factory default settings They need not be changed unless some other board on the computer uses the same address on interrupt level There is no need to install the driver and diagnostics software supplied with the data acquisition card 5 Connect the data acquisition board s 50 pin ribbon cable found at the back of the computer in a 50 pin slot to the Computer connector at the back of the receiver chassis top port 6 At the back of the receiver chassis arrange the DIP switches as shown in Figure 20 The first three DIP switches set the address for the receiver and chassis and the fourth DIP switch is always in the position shown The fifth DIP switch is used to select either the parallel
204. oning properly 1 3 Clean the connectors of the Output port on the front of the source optics module Test the output ports again If this fails proceed to Step 2 Remove the output port plate from the source optics module disconnect the FC PC connector from the back of the plate and measure the power directly from this FC PC connector cable The power measured is ideally at gt 8 dBm If the power is correct reinstall the output cassette and test the output ports again If the problem persists call JDS Uniphase Testing the System Prior to any functional testing of the SWS hardware verify that the optical connections and components are correct To verify connections 1 Set the tunable laser source to manual mode ensuring that the Remote key on the front panel is not lit The Remote key toggles on and off when it is pressed If the key does not toggle press the Stop button on the source optics module then the Execute button on the source optics module Set the tunable laser source to 3 dBm Connect a power meter to the To Device port on the front of the receiver by using a jumper Verify that the power reading on the power meter is gt 15 dBm If it is not clean all fiber connections ensure that all connectors are tight and redo the test If the condition persists contact JDS Uniphase When component testing is complete the assembled SWS can be tested to ensure that parameters for example IL minimum and max
205. onnect the other transmitter to the port marked TX2 using the FC APC end of the fiber from the second transmitter Finally use the supplied FC APC FC APC jumper to connect the output of the DBSSM to the input to the Control Module Connecting the Parallel Port Interface To connect the parallel port interface PPI to the receiver make sure that the computer you are about to use has its parallel port configured to SPP or bi directional protocol Please contact your system support specialist to verify the settings if needed 1 Connect the supplied 25 pin cable to the printer port on the computer 2 Connect the other end of the cable to the connector labeled Parallel Interface on the back of the receiver 3 Press down the upper part of the right most DIP switch labeled Parallel Port Enable on the back of the receiver Power up the OWB The Parallel Interface LED should come on Parallel Port Interface DIP Switches PARALLEL PORT ENABLED VW WRIT UNE 50 48 103 240 V 170 VA MAX FUSE TIAIDSO renn OWB Power Switch Figure 9 DIP switch settings 4 If you already have SWS software installed on the computer please start Configure SWS I O Interface program A shortcut is located under the Start button in the Programs SWS15100 section Choose the parallel port interface option and also select the LPT port to which you Getting Started 33 Artisan Technology Group Quality Instrumentation Guaranteed 888
206. onnvnnonnrnnennvnnenvvnnenvnnennvnnnsrvnnenrrnnnrrrensnrnnennn 41 Installing the Software uuasmasvnnovnnnnennnnvnnnvnnavnnnnennnnvesnvnnavnnnnennnnnesnnnnsennnnennnnnesnennsennnnenenne 43 Minimum Hardware Requirements aronnnnvnnnnnvnnnnnvnnnnnvnnnnnvnnnnnvnnnnnvnnnnnnnnnnnnnnnnnnn 43 Testing the SWS Components essien a e aden eee aati ea 51 Testing the Receiver asessicahiccticawsntetesicsnmeseattunecatustaderdentnscaiseneneebsinesccstarsddesucttsesscease 51 Testing the Parallel Port Interface rrrnnonvrnnnnvvnnnnvvnnnnvvnnnnvnnnnrvnnnnrrnnnnrrnnrnrnnnenr 52 Testing the Data Acquisition BOI casipuussiciieesculisaneddnsdluaselksunpldeeieotetactawsidnetasnaee 52 Testing the Output Pork cinch catia cew cig ana veceshanisecerdadiesusbinctined tusszausbensecesucevececeaies 52 Eie 40 2 SE PR renee a rere eer et ere eT 53 Testing System AEE EE EE 53 Operating and Maintenance InStructionS rnsvrnnnvrnnnvnnnvnnnnnnnnnnnnnnnnnvnnnnnnnnnnnnnnnnnvnnnnnnnnnnnnnnennn 55 source Optics Module Front PanekL unsusamuustmme unjmneheendnuveumunvhiv 55 Source Optics Module Rear Panel avse eetedee een 55 Tunable Laser Source Front Panel rannvnnnvnnnvnnonrnnnnvnnnvonnrnnnnvennnvnnnvenernnnnvennnvnrnrenernnnnn 55 Tunable Laser Source Rear Panel rnrnannvnnnvonnvnnnnrvnnnvnnnvennrnnnnvennnvnnnvenernnnnvennavernrenernnenn 56 Receiver Front Panel eee 56 Fecever Rear PE Asser a a a a E 56 Compact Two Channel Receiver Front Panell
207. operating Maximum 90 RH at 65 C non operating 20 General Information and Specifications Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Getting Started The Swept Wavelength System consists of six main components Transmitter consisting of a source optics module and a tunable laser source Transmitter cabinet Receiver with a control module and detector modules Parallel port interface or data acquisition board Software User supplied computer Before Initializing and Operating the Equipment M Inspect the units for any signs of damage M Read the users manual thoroughly and become familiar with all safety symbols and instructions to ensure that the units are operated and maintained safely Initial Inspection Warning To avoid electrical shock do not initialize or operate any unit if it bears any sign of damage to any portion of its exterior surface such as the outer cover or panels Caution e Acclimatize the tunable laser source for one to two hours after removing it from the shipping carton Allow an additional hour of warm up after the unit has been cycled and left on Always use the key to power down the laser Wait for the laser to park before switching the power off on the back panel After turning off the tunable laser source wait at least 30 seconds before powering it on again Check that the units and contents are complete 1 Wea
208. or 29700 L band This sequence of commands enters the parameter required to configure the SOM for wavelength diagnostics Verify that the parameter Points has been entered into the SOM correctly To verify this press the DISPLAY button on the SOM when it has stopped not scanning The correct value of Points is 18500 for C band and 29700 for L band Calibrating Wavelength for Diagnostics When the SWS software is run the program prompts the user to perform wavelength calibration Wavelength diagnostics cannot be used until the calibration has been performed See the Error Reference source not found section for more information on calibration Using Wavelength Diagnostics When a trace is obtained a wavelength check is performed If the wavelength is shifted by more than 3 pm the user is warned that there is a drift The message Wavelength measurement If the wavelength is shifted by more than 30 pm the user is prompted to perform a wavelength calibration The message Laser out of calibration is generated Maintaining the System The Swept Wavelength System does not require user maintenance See the Cleaning Connectors section for maintenance of connectors Operating and Maintenance Instructions 121 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Programming Guide Application Development using the SWS DLLs The Swept Wavelength System is delivered
209. oup Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com This flowchart lists optional routines START They can be called only after a call to getiLTrace getTracePotarization is called only after a trace has been acquired GET POLARIZATION Call getTracePolarization if PolarizationControl is active returns polarization state of current trace T Call getPeakPower For the parameter GET PEAK refpeak use 0 to find a maximum and POWER 1 to find a minimum The routine retums the power and the wavelength of the peak position Y GET CENTER Call getCenterWave to get the center WAVELENGTH wavelength The value of the parameter refpeak is 0 for a minimum or 1 for maximum GET BANDWIDTH Gall getBandwidth with refpeak 0 for a minimum and refpeak 1 for a maximum END Figure 101 Process Insertion Loss Trace 168 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com SELECT CHANNELS TO PROCESS GET JERO LOSS REFERENGES ACQUIRE FIRST TRACE REMAINING TRACES PROCESS POL PERFORM ANY ADOMONAL PROCESSING of ew See flowchart ZERO LOSS DATA IN POL MODE Do this for all required channels first This step is optional Call acquirePDL specifying channel list and with last parameter 1 Check return value Call acquirePDL specifying channel list and with l
210. port interface or data acquisition board interface whichever is installed in the computer First Chassis Parallel Port Enable pass ic e amp 2 I OFF Position Up ee Master Slave Always slave in SWS Figure 20 Receiver Address DIP Switch Setup 7 Attach the power cord to the back of the chassis and connect the other end to a power supply 8 On the front of the unit unscrew the detector caps on the detector module and attach the FC detector adapters There are two adapters for each detector module 42 Getting Started Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Installing the Software The software performs several functions including controlling the testing process retrieving data summarizing data plotting results and storing data The software displays measurement results versus wavelength Markers can be programmed to show specific results such as bandwidth A zoom feature provides the capability to expand the display in both wavelength and amplitude A plot can be superimposed on another plot Minimum Hardware Requirements The standard interface used to acquire data from the receivers is the parallel port interface As an option the National Instruments AT DIO 32F data acquisition card can be used When installing the SWS software specify which interface is installed If the AT DIO 32F is installed the user supplied computer must have at least one avai
211. put unsigned short chID This is the channel to be checked short polar This is the polarization state for which the user checks for zero loss reference Output char timeStamp This is the time of the last zero loss reference for the specified polarization Return Value When there is a zero loss reference done for the specified polarization the return value is 1 TRUE When there is no zero loss reference done for the specified polarization the return value is 0 FALSE When there is an error the return value contains the error number Programming Guide 141 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com getPDLReferences Function Description o O Purpose The getPDLReferences function is used to get the references zero loss for all four polarization states S1 S2 S3 and S4 used to calculate the PDL of a device This function automatically acquires all four references for each of the four polarization states If one of the polarization states is not detected in a specified amount of time the function returns a timeout error C Fr int NNN unsigned short chID VB VB prototype Declare Function Declare Function getPDLReferences Lib SWS15100 ByVal chID As Long Lib SWS15100 ByVal chID As Long Input unsigned short chID This is the channel selected for acquiring all four references Return Value If there is no error and all four references
212. r an anti static wrist strap and work in an electrostatic discharge ESD controlled area 2 Inspect the shipping containers for any indication of excessive shock to the contents and inspect the contents to ensure that the shipment is complete 3 Inspect the units for structural damage that can have occurred during shipping 4 Ensure that the power switch is set to O off 5 Connect each unit to a power source using the AC power cord provided Getting Started 21 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com 6 Set the power switch to I on 7 Keep the packaging Immediately inform JDS Uniphase and if necessary the carrier if the contents of the shipment are incomplete if the equipment or any of its components are damaged or defective or if any unit does not pass the initial inspection Operating Environment In order for the units to meet the warranted specifications the operating environment must meet the following conditions for temperature humidity and ventilation Temperature The source optics module can be operated in the temperature range of 10 to 40 C The tunable laser source can be operated in the temperature range of 15 to 30 C The receiver can be operated in the temperature range of 10 to 40 C Humidity The equipment can be operated in environments with up to 80 humidity 10 to 40 C Do not expose it to any environmental conditions o
213. r changes to environmental conditions that can cause condensation to form inside the unit Ventilation Do not install the equipment in any location where the ventilation is blocked For optimum performance of the fan the source optics module transmitter cabinet and receiver chassis require 10 cm 4 in front clearance and 8 cm 3 in rear clearance The tunable laser source and receiver chassis contain built in cooling fans When installed in the transmitter cabinet the ventilation requirements for the tunable laser source are met Blocking the air circulation around the instruments can cause the instruments to overheat compromising their reliability Warning e Do not use the units outdoors e To prevent potential fire or shock hazard do not expose the units to any source of excessive moisture Storing and Shipping To maintain optimum operating reliability do not store the units in locations where the temperature falls below 40 C or rises above 70 C Avoid any environmental condition that can result in internal condensation Ensure that these temperature and humidity requirements can also be met whenever the unit is shipped 22 Getting Started Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Claims and Repackaging Immediately inform JDS Uniphase and if necessary the carrier if e The contents of the shipment are incomplete e The unit or any of its component
214. r from the desktop if a shortcut is copied to it To execute the program a number of parameters must be selected first The menu allows the 64 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com proper selection of required parameters The software can operate in one of two modes insertion loss IL or polarization dependent loss PDL The user must select one of these The polarization mode must also be selected SWS User Interface Main Menu When the program is executed a window similar to the one shown in Figure 53 is opened The top of the window displays the menu items File Mode System and Help that are available for controlling the execution of the SWS wept Wavelength System Figure 53 SWS15100 Main Program Window File Menu The File menu is shown in Figure 54 Operating and Maintenance Instructions 65 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Mode System Window Help i New Configuration Window Ctrl N Open Configuration Window Ctrl O Close Configuration Window Open Workspace Ctrl V Save Workspace Ctrl 5 Save Workspace s Open Data Set Save Analysis Results As Print Ctrl P Print Setup 1 SWSConfiguration000 cfg 2 SWS GPIB Monitor Exit Alt F4 Figure 54 File Menu The File menu provides the user with the file sele
215. rLevel unsigned short baseRef double pCenLam double pCenPow VB prototype Declare Function getLocalCenterWave Lib SWS15100 ByRef pLamData As Double ByRef pPowData As Double ByVal dataSize ByVal dStartWave As Double ByVal dStopWave As Double ByVal refPeak ByVal InterLevel As Double ByVal baseRef ByRef pCenLam As Double ByRef pCenPow As Double As Long Input double pLamData The pLamData array stores wavelength points of the trace double pPowData The pPowData array stores IL power level dB scale points Each point from the pPowData array has a corresponding point in the pLamData array unsigned short dataSize This is the size of arrays pLamData and pPowData allocated by the user This is the size of the acquired trace retrieved by the user with the function getDataSize double dStartWave This specifies the wavelength at which to start processing double dStopWave This specifies the wavelength at which to stop processing unsigned short refpeak This is an integer type that has the following set of values MAX_PEAK_REF 0 MIN PEAK REF 1 double interLevel The interpolation level is the height from the peak where the bandwidth is calculated unsigned short baseref This is Boolean For minimum peaks the baseref is 1 and the bandwidth of the peak is calculated from the base of the peak For maximum peaks the baseref is 0 and the bandwidth is calculated from the peak Programming Guide
216. ranteed 888 88 SOURCE www artisantg com 1 Turn off the power at the back of all existing receiver chassis The units do not need to be unplugged 2 Find the DIP switch on the back of the chassis It should look like one of the following Figure 12 Black DIP switches on older Figure 13 Red DIP switches on newer versions of chassis chassis 3 Set the DIP switch at the back of the new chassis to the next available address Figure 14 Figure 14 Additional Chassis DIP Switch Setup 4 As shown in Figure 15 remove the short termination cable from the middle and bottom 50 pin connectors Additional Chassis and Termination ports at the back of the last chassis in the set Connect the jumper to the same connectors on the new chassis For example take the jumper from the fourth chassis and connect it to the fifth chassis rei oes baan meas 900 we w ee bit 00 Set DIP Set DIP switches switches 50 pin ribbon cable i 50 pin ribbon cable os g T Attach short mm cable here es First receiver chassis To power Second receiver chassis To power supply supply 36 Getting Started Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Figure 15 Setup for Adding a Receiver 5 Using the 50 pin ribbon fiber cable provided with the new chassis attach one end to the middle Additional Chassis connector of the last chassis in the s
217. re PDL 1 Perform the zero loss measurement with the software in PDL mode and the polarization mode set to M1 on the source optics module Connect the device as shown in Figure 79 for IL measurement Select the types of traces to be displayed and the analysis to be performed as described in the Using SWS Software section Acquire a trace The selected outputs are displayed in the Chart Area and can be manipulated in the same way as insertion loss plots The additional analyses that can be performed the formats in which the data can be stored and markers that can be used on these plots are described in the Using SWS Software section 96 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Multiple Output Devices Devices with more than one output can be measured using the SWS in a manner similar to measuring simple passive optical devices To measure multiple output devices 1 Acquire zero loss reference Zero loss references need to be acquired for each of the selected channels in the selected processing mode IL or PDL To acquire the required zero loss references proceed as for a single output device but repeat the process for each of the output channels 2 Measure insertion loss To measure the insertion loss of a multiple output device connect the device into the SWS as shown in Figure 80 The output of the control modul
218. restored If there is more than one receiver chassis hooked up to your transmitter use the instructions above to calibrate one receiver chassis and then copy the calibration constants to the Control Modules in the other receivers This saves you time Calibrating Multiple Receivers Up to four receiver stations can be connected to each transmitter station To copy the calibration constants from the first receiver to other receivers 1 Perform the wavelength calibration on one receiver Save the new calibration data but do not save the old calibration Save the calibration data again by selecting as if to save the old calibration data This procedure saves the current calibration data in the SWS15100 INI file in the C WINDOWS directory Copy the SWS15100 INI file to a diskette At each additional receiver station edit the SWS15100 INI file using a text editor such as Notepad by copying the old calibration data from the diskette to the file Save the new SWS15100 INI file as text Run the SWS program From the main window of the software select the System menu choose the Calibration option and select the Wavelength Calibration tab The Wavelength Calibration window appears Operating and Maintenance Instructions 109 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com 7 Do not perform the calibration Click the Restore Calibration button Select Yes to restore the la
219. rface If problems are encountered with the parallel port interface it can be tested easily by unplugging the receiver and substituting a standard printer Use an application program such as Notepad to print a small file If the print procedure is successful the parallel interface works Verify that the parallel port installed in the computer is a standard DB25M port The printer port must be in SPP mode to operate with the SWS Testing the Data Acquisition Board Test the data acquisition board if the software does not produce the expected results For example if listing channels is not possible test the data acquisition board Prior to testing the data acquisition board ensure that the 50 pin connector on the board is not damaged Remove the 50 pin ribbon cable and inspect the pins on the connector Verify that none are broken or bent Reinsert the cable and try again If the problem persists test the data acquisition board Set the DIP switch or jumper settings for the board to the default values which are listed in the board s user s manual The default addresses need to be changed only when there is a conflict on the computer To test the data acquisition board its software needs to be installed following the instructions in the user manual for the board The SWS software does not need to be installed to test the data acquisition board Likewise the data acquisition board software is not needed for the SWS to run To test the da
220. rmation for every port of the switch e g Tx1 is set to C band and Tx2 is set to L Band 14 The third section of the Wizard tests the communication between the SOM and the receiver by counting the number of data points collected by the Control Module of the receiver while sweeping over any of the bands C L or both Please choose a band in the drop down list of the dialog box 48 Getting Started Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com tina Sue Collec minal Size Collection for spe 5W 315100 Varsion 300 and above has tHuliple Bench capability system datactad n switch on O B Recsiver Please make sure thet Detsult Nominal See tor All Bends is corecti botore 1 zot ary mensuremert 6 Nomina Site for each band wil be colectad AN enualy tha SOM at each band to tha OWA Recener e SV VS15100 Version 3 0 0 end ebove has Multiple Bands copahilty e System Cetected no switch on OW Receiver Please make sure that Dotsut Names Size for All Bancs connect batore to text any measurement e Norinal Size tor eoch band wil be collected by connecting analy the SCM of aech band to tha OWE Receiver Please connect nowthe fber cable tom the SOM ofthe Selected Band Fiesso connect now the fher cable tom the SOM ofthe Selected Band helow to the OWE Revealer below to the CWB Receiver a C Band b L Band Figure 26 Testing the data collection procedure in C a and
221. rns zero When there is an error the return value contains the error number getDataSize Function Desoription o O Purpose The getDataSize function retrieves the number of data points in the trace from the start wavelength to the maximum wavelength defined by LambdaMax in the SWS15100 INI file C prototype int getDataSize VB prototype Declare Function getDataSize Lib SWS15100 As Long Return Value When there is no error the function returns the length of the data array or the number of data points from the start wavelength to the maximum wavelength When there is an error the return value contains the error number is negative getReference Function Description o Purpose The getReference function acquires a new reference for the specified channel The polarization of the new reference is stored in the variable pola This function is called after the user acquires raw data through a call to the triggerTrace and isTraceDone functions with the setup for channel reference measurement in place C prototype int getReference unsigned short chID short pola VB prototype Declare Function getReference Lib SWS15100 ByVal chID ByRef pola As Long Input unsigned short chID This is the channel ID to be referenced short pola Variable pola contains the polarization of the new reference Return Value When there is no error the function returns zero When there is an error the return
222. rom the peak position 4 At the same level x dB from the baseline find the longer wavelength Ar nearest to the signal as in Step 3 The search is begun moving outward right from the peak position 5 Compute the center wavelength CW as the mean of the two Ar A_ 2 6 Find the two data points of the signal nearest the CW Reference 221 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com 7 8 Get the power at each of these points Interpolate to find the power at the center wavelength from these points Center Wavelength using a Threshold Relative to the Peak The SWS calculates center wavelength using the following procedure 1 2 6 7 Find the specified peak signal level Store the wavelength at which the level occurs At a power level x dB from the peak found in Step 1 find the shorter wavelength AL nearest to the signal The wavelength is determined by finding two data points one to the left of the wavelength at which the signal crosses x dB and one to the right of that wavelength The wavelength AL corresponding to x dB is interpolated from these two data points The search is begun starting outward left from the peak position At the same level x dB from the peak find the longer wavelength Ar nearest to the signal as in Step 2 The search is begun moving outward right from the peak position Compute the center wavelengt
223. rom tunable laser source to source optics module supplied with tunable laser source RS232 cable All AC power cords SWS15100 and SWS16100 Swept Wavelength System User s Manual SWS15101 and SWS16101 Tunable Laser Source User s Manual General Information and Specifications 13 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Optional Components and Accessories Optional components and accessories are listed in Table 4 Table 4 Optional Accessories SWS15101 Tunable laser source for C band SWS SWS16101 Tunable laser source for L band SWS J j SWS15103 Dual band selector switch module C to L band switching for either C or L band system SWS15110 Receiver two channel receiver with software used either for C or L band operation includes Chassis OWB10002 Receiver control module SWS15106 Dual detector module SWS15107 Interconnection cable Fiber jumper J FAFP B 001 J1 A0103979 Data acquisition board SWS15115 Compact two channel receiver SWS15104 Four state polarization controller for either C or L band operation SWS15113 Calibration kit includes an acetylene cell and an HA9 Series Extended Range Programmable Optical Attenuator SWS16117 L band calibration kit includes a gas cell and an HA9 Series Extended Range Programmable Optical Attenuator SWS15116 Parallel port converter table continued OWB10002 Chassis for the receiver com
224. rt refWave double pdPassBand baseRef ByVal interLevel as Double ByVal refWave ByRef pdPassBand As Double As Long VB Declare Function getPassBand Lib SWS15100 ByRef pLamData As Double prototype ByRef pPowData As Double ByVal dataSize ByVal refPeak ByVal 148 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Double pLamData The pLamData array stores wavelength points of the trace Double pPowData The pPowData array stores IL power level dB scale points Each point from the pPowData array has a corresponding point in the pLamData array unsigned short dataSize This is the size of arrays pLamData and pPowData allocated by the user This is the size of the acquired trace retrieved by the user using the function getDataSize unsigned short refpeak This is an integer set of values MAX_PEAK_REF 0 find maximum peaks MIN_PEAK_REF 1 find minimum peaks unsigned short baseref This is Boolean For minimum peaks the baseref is 1 and the bandwidth of the peak is calculated from the base of the peak For maximum peaks the baseref is 0 and the bandwidth is calculated from the peak double interLevel The interpolation level is the height from the peak where the bandwidth is calculated unsigned short uhRefWave This is the reference wavelength or the nominal center wavelength around which the passband is computed Outp
225. rted Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com 7 4 1 IDS Uniphase SWS Testing and Setup Category _ Current Settings Status 1 Checking for V O Interface and interface AT D 0 32 Untecied Connection between the PC and the tn AE Senna OWB Receiver Part das Txt 2 Checking for Dual Band Switch Sw 8 Found SWS16103 amp he ia Uneste Oulpet 3 Checking for Carnmunication between the Source Optic Module N A N A th j 1520 1570 SOM Transmitter and the OWB Receiver Update the Nominal Size 1540 1620 hv for each Band gt 4 Update Wavelength Calibration Constant MO and L 541265101212 Figure 21 Starting SWS Testing and Setup Wizard It is going to test four sections of the setup I O Interface a Dual Band Switch if applicable optical communication between the receiver and the SOM and initial wavelength calibration Click Start button to run the Wizard Firstly the Wizard allows the user to choose what kind of interface is to be used The I O Data Acquisition card is a default option If it is the option you are currently using in your setup the Wizard checks the communication between the computer and the receiver If the I O interface does not match the default option the user is prompted to reconfigure the interface When the program executes a dialog box appears Figure 22 The text boxes at the top show the defaul
226. rtion losses finding bandwidth and center wavelength turning markers on or off and finding peaks The analysis can be performed in a selected wavelength or frequency range The advanced analysis section allows the user to add a comment to the analysis provides selections to compute passband flatness crosstalk and cumulative crosstalk and sets up ITU channels used in the analysis The analysis definition file must be saved or an old analysis definition file loaded before analysis can be performed Setting the Analysis Parameters Before conducting analysis on the data the analysis parameters in the Analysis Setup dialog box must be defined Open the Analysis Setup Dialog Box by clicking the Select Analysis button on the Analysis tab page This dialog box is shown in Figure 60 Senpi Wovelength System SWSCanheerationU0 Engiasenna Unit Fn GR FR OA Analysis Type Cente Wavelength Nearsat Oharnalio OW F Pessbard F Fishess Pesameters Fermats Theeshold Flamass Range as sod SWS 15100 Reedy LBond TPSNSM a NUM Figure 72 Analysis Setup Dialog Box 84 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com This section of the manual describes how to enter parameters using the user interface to conduct analysis For information on how the SWS program conducts its analysis see the How the SWS Calculates Va
227. s are completed by the time this command is parsed SCPI Status Commands The following tables describe SCPI status commands STATus OPERation CONDition converted to a binary number represents the bit values of the register STATus OPERation ENABle Function Sets the bits in the operation enable register The NRf value is rounded to the nearest integer and converted to a binary number The bits of the register are set to match the bit values of the binary number STATUS OPERATION ENABLE 33 sets bit 0 and bit 5 of the operation enable register to 1 180 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com STATus OPERation ENABle STATus OPERation ENABIe Function Returns the contents of the operation event enable register as an integer that when converted to a binary number represents the bit values of the register STAT OPER ENAB 23 ENAB returns 23 STATus OPERation EVENT STATus OPERation EVENT Function Returns the contents of the operation event register as an integer that when converted to a binary number represents the bit values of the register STAT OPER EVENT STATus QUEStionable CONDition STATus QUEStionable CONDition Function Returns the contents of the questionable condition register as an integer that when converted to a binary number represents the bit values of the register STAT QUES COND STATus QUE
228. s are damaged or defective e The unit does not pass the initial inspection In the event of carrier responsibility JDS Uniphase allows for the repair or replacement of the unit while a claim against the carrier is being processed Returning Shipments to JDS Uniphase JDS Uniphase only accepts returns for which an approved Return Material Authorization RMA has been issued by JDS Uniphase sales personnel This number must be obtained prior to shipping any material to JDS Uniphase The owner s name and address the model number and full serial number of the unit the RMA number and an itemized statement of claimed defects must be included with the return material Ship return material in the original shipping container and packing material If these are not available typical packaging guidelines are as follows 1 Wear an anti static wrist strap and work in an ESD controlled area 2 Wrap the unit in anti static packaging Use anti static connector covers as applicable 3 Pack the unit in a reliable shipping container 4 Use enough shock absorbing material 10 to 15 cm or 4 to 6 in on all sides to cushion the unit and prevent it from moving inside the container Pink poly anti static foam is the best material 5 Seal the shipping container securely 6 Clearly mark FRAGILE on its surface 7 Always provide the model and serial number of the unit and if necessary the RMA number on any accompanying documentation 8 Ship the u
229. s on the SOM cesccceceseceeeneeceeeeeeeeeeeeesaeeceaeseeeseneesaaeseaeeeneetees 62 Figure 48 Setting Parameters in Manual Mode rrrnnrnnnnvnnnvennrnnenrrnnnvnrnvenerrnnnvennnennnvenernnsnvennnee 62 Figure 49 Remote Option on the SON egg oiccd sein tacucatennuieduniaeGenedadelueedviesaeiaeisiesels 63 Figure 50 Display Option on the SOM cccccesceceeeeeeeeeeeeeeaeeceaeeeeeeeeeesaeeseaeseeeeseneesaaeeeaeeeeeeeaes 63 Figure 51 SOM Status DiS Olay sesssicsccicadsccanatebjenesateneaicaas de nestanctaslenscummtiaubiee iadeaiaionebiedvolientaaeds 64 Figure 52 Components of SWS15100 Software rrrrnnnvnnnvnnnrnnnnrrnnnvnnnvnnrrrnnnvennnvnnnvenernnnnnennnee 64 Figure 53 SWS15100 Main Program MN speed 65 Figure 54 File MEN seit aalacected eeneisl catseuesaiestiey see tasustevsech duce cetestaraedeninaeceicthecteabateeseucstanscaesussteasltees 66 Figure 55 Dialog Box to Save Data Set ccccceececeeeeeeeeeeeeeeaeeeaeeeeeeseeeesaeeeeaeseeeseeeesaaeeeaeeeeeesaes 67 FE 56 M de ME cbse jr Jake E 68 16 JET 10 tcc cice seca eects cnciestncsncesanlesiehuie cigs ana vou shavsedyrtadiesuiseectestucsteaustansecesuceueserae 69 Figure 58 OWB Nesa emaanide 70 iQue 59 General Setup Tab arnan aa A E aaia 71 Fig re 60 Switch SANT ee a a errr re a 71 Figure 61 System Setup Tab cic ciccececed ca ssccersedacstagactedeansedaistanecdutnedelenagsotbausutedalatucsaduaniecectengaenanes 72 Figure 62 Window Menu sais socucaicbiicis eito
230. s s0 sou reusssedsssnsdicestnusaecniinsdnussomandaisusdueenduatuesadbedauarmunmeieasasceuss 94 Characterizing Specific Devices mmmvrnovrnrnerrnvennvnnavnnnnennnnvnnnonnaennnnennnnnnsnennsennnnennnnnesnene 94 ET DEG 94 Acquiring Zero Loss Reference for a Device rrnrrnvnnnnnrnnnrnvnnnrrrnnnrrrnnrnrrnnrnrrnnenn 95 Measuring Insertion Loss Of a Device mrrrrnannrnnonnvnnnnvvnnnnvvnnnnvrnrnnrnnnrrrensrrrnnrnrnen 95 Measuring PDL of a Device re 96 Multiple Output Devices rrnrrnnnvnnnvennrnnonrnnnnvnnnvnnnvnnnnrnnnnennnvnnnrenenrnannennnvennnnnenneenne 97 Example Application Characterizing Fiber Bragg Gratings in Reflection 98 Measuring Insertion Loss of an FBG cccccesceceeeeeeeeeeeeeeeeeeeeeeeaeeeeeeseneesneeeeaeees 98 Me s ring PO Cran ge NE a ae 99 Calibrating the EQUIOMIGIM sacsncs ctaicesecesrtenctsunstastins sneeecenarenerteeeesservetinn haptcevaneexnacteretarte 99 General Information sk siesta cadet esses RE nesen ennen 99 When do Confirm Wavelength Accuracy When do I Calibrate 99 Calibrating Multiple Recevers u4e 4ec4eaaersasasa vem 109 Using Alternative Gas CellS rrrnrnnnnnnnnvnnnvnnnnnnnnnnnnnvnnnvnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnennn 110 Er GE ER RE ET 110 REE ENE EE EE EN EEE 110 L Band or C Band Calibration Using the H C N Cell 112 Verifying Power Calibration vvs 114 Calibrating PoWek sususneasnimeme eu v vdonnevmetunandetksubstente 115
231. s two types of modules a control module and a detector module The control module is a hardware controller for the receiver chassis It synchronizes the transmitter and the receiver It decodes the wavelength data sent by the transmitter and combines them with the power data read from the detector module s The detector module is a dual power detector each detector module records power for two channels The outputs from the DUT are connected to the detector module s The chassis also houses the optional dual band selector switch module DBSSM if two transmitters are used for transmission of signals to the control module The DBSSM can be switched to either input to obtain a wider wavelength span than is normally available using one transmitter Up to eight detector modules can be installed in each receiver chassis with each detector module containing two detectors Up to eight chassis can be used for each receiver station therefore up to 128 channels at a time can be measured for each receiver station The SWS can also be expanded to four receiver stations for each transmitter A compact two channel receiver is available as an option for users who do not need the expansion and multichannel capabilities of the standard receiver but instead require a compact General Information and Specifications 11 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com unit This version of the recei
232. s zero When there is an error the return value contains the error number getITUSize Description The function getITUSize returns the number of ITU channels between specified wavelengths or frequencies C prototype int getITUSize double diITUSpacelnGHz double dStartWave double dStopWave unsigned short uhITUunits VB prototype Declare Function getlTUSize Lib SWS15100 ByVal dITUSpacelNGHz As Double ByVal dStartWave As Double Byval dStopWave As Double ByVal uhlTUunits As Long Input double dITUSpacelnGHz Specifies the spacing of ITU channels This must be in GHz double dStartWave Specifies the start wavelength or frequency double dStopWave Specifies the stop wavelength or frequency unsigned short uhITUunits This integer specifies the units for the stop and start wavelength or frequency The allowed values are UNITS NM and UNITS GHZ specified in the file swsConst h eturn Value When there is no error the function returns the number of ITU channels When there is an error the return value contains the error number getITU Description The getITU function returns the current ITU grid in a specified wavelength or frequency range C prototype int getITU double dITUSpacelnGHz double dStartWave double dStopWave unsigned short uhlTUunits double pdITUGrid VB prototype Declare Function getITU Lib SWS15100 ByVal dITUSpacelnGHz As Double ByVal dStartWave As Double Byval dStopWave As Dou
233. scription Purpose The setPolarizationControl function is used to set a flag that enables or disables operations involving any polarization related function C prototype int setPolarizationControl short polarFlag VB prototype Declare Function setPolarizationControl Lib SWS15100 ByVal polarFlag As Long Input short polarFlag To detect at the receiver side all polarization states sent by the transmitter the polarFlag value must be 1 If the polarFlag value is 0 any polarization sent by the transmitter is seen as polarization state SO Return Value When there is no error the function returns zero When there is an error the return value contains the error number getPolarizationControl Function Description o O The getPolarizationControl function is used to get the status of the polarization flag C prototype int getPolarizationControl VB prototype Declare Function FFF Lib SWS15100 As Long Programming Guide 139 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Function Description o O Return Value When there is no error the function returns the value of the polarFlag as set by the function setPolarizationControl When there is an error the return value contains the error number isDarkVoltageDone Function Description Purpose The isDarkVoltageDone function is used to check if a dark voltage measurement has been
234. ser source 11 25 Acclimatizing 21 28 Calibration setup 99 Cycle power 29 Error messages 212 Front panel 55 Initializing 187 Installing 26 Rear panel 56 Specifications 18 Start up 28 Two channel receiver See Compact two channel receiver UCA See Universal connector adapter Universal connector adapter Installing 39 User interface 17 User s manuals 9 Using SWS Software 64 See Software Utilities 64 Wavelength 16 218 Calibrating scale 98 Calibration Constants 63 Guaranteed 888 88 SOURCE www artisantg com Setup 99 Enabling diagnostics 117 Placing markers 87 Verifying Characteristics 191 Wavelength meter 99 113 115 191 WDM 9 Workspace 66 88 Zero loss See also Zeroing Acquiring reference 94 96 Measuring 78 91 Setup 94 Zeroing See also Zero loss Fiber Bragg grating 88 With reflection 89 Without reflection 88 Setup 89 Index 235 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com A rtisan Artisan Technology Group is your source for quality TecmologyGrap new and certified used pre owned equipment FAST SHIPPING AND SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT DELIVERY Experienced engineers and technicians on staff Sell your excess underutilized and idle used equipment TENS OF THOUSANDS OF at our full service in house repair center We also offer credit for buy backs and trade ins I
235. signed column stored in a specific column Reference Scans Process amp Display Option Marker Thresh Minimum Peak Maximum Peak Cent Wavelength Bwidth PBand Flatness LxTalk RXTalk TxTalk Power Wave IL Wave IL Wave IE Wave Wave IL IL L IL Channels reser gt I Auto Analysis Select Analysis Analyze Clear Table IV Logtofile FSS Browse Figure 71 Analysis Tab Window to Display Analysis Results The Analysis tab page shows the channels selected for analysis and computed parameters for each of the channels There are one or two columns under each heading The columns are Threshold Power shows the power level below the peak or above the base at which the parameters are computed Minimum Peak two columns show the wavelength at which the minimum peak occurs and the insertion loss at that wavelength Maximum Peak two columns show the wavelength at which the maximum peak occurs and the insertion loss at that wavelength Center Wavelength two columns show the center wavelength and the insertion loss at that wavelength Bandwidth the column shows the computed bandwidth If a peak has multiple bandwidths at a specified threshold the value shown is the minimum bandwidth Passband the column shows the computed passband Flatness the column shows the computed flatness between two specified wavelengths The flatness has the same units as insertion loss LXTalk
236. sing 169 Get Insertion Loss 165 Insertion Loss Mode Processing 162 PDL Mode Processing 167 Process Insertion Loss Trace 166 SWS Data Collection and Processing 161 Zero Loss Data in Insertion Loss Mode 163 Zero Loss Data in PDL Mode 168 Source optics module 173 Programming Guide 121 Receiver 11 Assembling 30 Channel capacity 35 Chassis 11 38 41 DIP switch 42 Front panel 56 Installing 29 Multiple chassis 31 35 Rear panel 56 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Setup 30 SOM output ports 29 Specifications 20 Start up 37 Testing 51 Receiver chassis See Receiver Reference Acquiring zero loss reference 94 Reference scans tab page 77 Measuring dark voltage 77 Measuring zero loss 78 Reference table 77 Single output devices 94 Taking a reference 77 Reflector 97 Relay port 28 Remote control 170 RS232 See also Cable Connecting 170 186 Safety Information Instructions and Symbols 5 Safety instructions 6 Safety symbols 7 Save settings 88 Scan mode 78 SCPI Command tree 173 Common commands 175 SOM commands 173 Status commands 178 User commands 180 Smoothing 79 93 Formula 93 Software 12 121 Configuration windows 74 Features 12 File menu 65 See also File Menu Files used by SWS 123 Help menu 73 Installing 43 44 Interface descriptions 128 See Contents section for individual entries Progr
237. sition processing analysis and display of the data by using controls in each of these areas Chart Area When data is collected and processed plots of the computed IL or PDL are displayed as a function of the wavelength and frequency The plots are shown in the Chart Area Controls and key options are provided to manipulate this image Window Separator A window separator is provided to expand or contract the height of the chart area The 3D raised line can be moved up or down by clicking it and dragging it to where desired This action changes the vertical scale of the plot 74 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Maximize Button The Maximize button is located in the top right hand corner of the Chart Area If the button is clicked the plot is expanded to fill the screen If the button is clicked again the plot returns to its former size Zoom In Pressing the Zoom In button causes the plot to expand The center of the image is left unchanged but both the x axis and y axis scales are reduced to a smaller range Zoom Out The Zoom Out button does just the opposite of the Zoom In button The ranges of both the axes are increased and the image is made smaller The center of the image is left unchanged Pan The Pan button is used to move the image without changing the scale Click the left mouse button on the center of the
238. smoothing is n the power at any point k is P k y P k r n 1 r n 1 where P k is the power at point k The sum is for values of r from n to n for a half filter size of n The effect of smoothing is to average noise over a few wavelengths It reduces the wavelength resolution Use smoothing with care for devices in which the insertion loss changes rapidly with wavelength Display Type The display type that can be selected depends on the processing mode In IL mode only the insertion loss can be displayed However in PDL mode there are four possibilities PDL minimum IL maximum IL and average IL Any two can be selected at one time e The minimum IL plotted is the minimum insertion loss at each wavelength for all possible polarizations of the incident light as it passes through the device The minimum is computed from the Mueller matrix which in turn is derived from the insertion measurements for the four polarization states that are the output of the polarization controller The quantities are computed from the Mueller matrix elements for each wavelength e The maximum IL is the maximum insertion loss without respect to the polarization state of the input to the device e The average IL is the average insertion loss over all possible polarization states of the input to the device e The PDL is the difference between the maximum and minimum insertion losses After the selection is made click the Refresh button to c
239. srarnnnnnnnnnnrnnnnvnnnvennrnnnnvennnvnnnvennrrnnnvennnennnvenernnsnnennnee 56 Figure 35 Receiver Chassis Rear Panel jiiicajstetitia dai cessiussteiadedetasieds ul aon duneieenandesaigalea 56 Figure 36 Compact Two Channel Receiver Front Panel mrsnnnonvnnnnvnnnrnnrrrnrnrvnnnvrnnrnnrrrnrnvennnne 57 Figure 37 Compact Two Channel Receiver Rear Panel rmrsnnnanrnnnvvnnnvnnerrnnnvennnvennrnnerrennvennnne 57 Figure 38 Control Module Front Panel sicccccccscctetiesccstestinsctiejceaid tec cxtachn anes sedtedscseddlasracntenvastbaes 57 Figure 39 Detector Module Front P heluuussssevasvdnepagsmnsbvdejaninpumidsujaee 58 Figure 40 Dual Band Switch Selector Module Front Panel ms usranvnvrannvnrnvnnnvnnvrnnrrrrrnvrnrnverneen 58 Figure 41 Four State Polarization Controller Front Panel rrrnannrnnnvnnnvnnnrrnnnvvnnnvnnnvnnvrrnrnrennnne 59 Figure 42 Four State Polarization Controller Rear Panel usrnnanrrnnnvnrnvennrrnnnvennnvnnnvnnvrnnnnnennne 59 Figure 43 SOM Power Up Screen cccccceccesecceeneeceeeeeeeeseeeeeaeeceaeeaesaeeeeaeecaeseeeseeneesaeeseaeeeeeseaes 60 Figure 44 Main Menu of the SOM arernrnnnnrnnnnvnnnvennrnnnnrennnvnnnvenernnnnvennnenrnvenernnenvennnennnvenernsnnnennnee 60 Figure 45 Setting SOM Parameters c cccccscecdcsceteceestsasceessecesdenescetscensdesnecteaaeensdscesnsnsncensensanenaes 61 Figure 46 Changing Parameter V R 4 see euguiein saa eigeieields dels eee 61 Figure 47 Manual Mode Setting
240. ssly permitted by applicable law notwithstanding this limitation 2 2 You may not rent or lease the SOFTWARE or any portion of the SOFTWARE 2 3 You may permanently transfer all your rights under this EULA provided you retain no copies you transfer all of the SOFTWARE including all components parts the media and printed materials you transfer JDS Uniphase supplied hardware and the recipient agrees to the terms of this EULA 3 SUPPORT AND UPGRADES Where JDS Uniphase provides support and optional upgrades you may fr SOFTWARE support and optional upgrades for the SOFTWARE upon payment of any applicable ees 4 WARRANTIES AND INDEMNIFICATION 4 1 JDS Uniphase warrants that the SOFTWARE under normal use and service as originally delivered to you will function substantially in accordance with the functional description set out in the user manual supplied with the SOFTWARE for a period of 90 days from the date of shipment when used in accordance with the user manual JDS Uniphase s sole liability and your sole remedy for a breach of this warranty shall be JDS Uniphase s good faith efforts to rectify the nonconformity or if after repeated efforts JDS Uniphase is unable to rectify the non conformity JDS Uniphase shall accept return of the SOFTWARE and shall refund to you all amounts paid in respect thereof This warranty is void if failure of the SOFTWARE has resulted from accident misuse abuse misapplication or modification 4 2 JDS UNIPHASE E
241. st calibration values The calibration data is copied from the INI file to the control module of the receiver 8 Repeat the procedure for each receiver station When the procedures are complete all receivers connected to the same transmitter have identical wavelength calibration 9 Repeat the procedure on all receivers if the source optics module or the tunable laser source is changed Using Alternative Gas Cells As an alternative to the gas cell built into the SOM other gas cells can be used The table below shows recommended alternative gas cells for calibration of C and L Band receivers Wavelength Gas Cell Refer to this Range Table and Graph C Band Carbon 13 Table 15 This is the cell fitted within the 13C2H2 Wavelengths of L Band SOM Absorption Lines for 13C2H2 Acetylene Cell Figure 86 C Band Trace using 207H Acetylene Cell L Band Hydrogen Cyanide Table 16 This gas cell is available in an H C N Wavelengths of external configuration Due to Absorption Lines shipping restrictions may not for H13C14N Cell be available in all areas Figure 93 Absorption Lines of H13C14N Cell C Band Hydrogen Cyanide Table 16 This gas cell is available in an H C N Wavelengths of external configuration Due to Absorption Lines shipping restrictions may not for H13C14N Cell be available in all areas Figure 93 Absorption Lines of H13C14N Cell In order to set up the system for calibration with alternative gas cells
242. t or current if changed configuration Getting Started 45 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com SWS IO Interface Configuration x Current Setting Port or Base IO Address Interface fo jews Parallel MIO Interface Type SWS Parallel C AT DIO 32x SWS Parallel Warning The SWS Parallel Interface ONLY works with OWB1 DLL version 2 0 0 or above The earlier version may damage the device connected to the parallel port or may cause the system crash Please use with caution Finish Figure 22 Interface Configuration 10 Click the SWS Parallel radio button to select the parallel interface or the AT DIO 32x button if the data acquisition card is installed The text boxes do not change when the radio button is pressed 11 To effect the change click the Modify button A new dialog box appears Figure 23 In this dialog box the parallel port is selected If the port number is unknown there is only one port or the first port is in use select 0 If the port is LPT1 or LPT2 select it by clicking the arrow to highlight the selection The selection appears in the text boxes at the top Verify that the configuration is correct Click the Finish button 46 Getting Started Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com SWS IO Interface Configuration x
243. t made with a fiber against which relative power measurements are made Expands an image by reducing the X and Y scales The center of the image is unaffected Reduces an image by increasing the X and Y scales leaving the center of the image in the same position Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Safety Information Instructions and Symbols Safety Information Classification The equipment consists of an exposed metal chassis that is connected directly to earth via a power cord and therefore is classified as a Class 1 instrument Class 1 refers to equipment relying on ground protection as a means of shock protection The following symbol is used to indicate a protective conductor terminal ETN T NE Disconnecting from Line Power Some of the circuits are powered whenever the units are connected to the AC power source line power To ensure that a unit is not connected to the line power disconnect the power cord from either the power inlet on the unit s rear panel or from the AC line power source receptacle The power cord must always be accessible from one of these points If a unit is installed in a cabinet the operator must be able to disconnect the unit from the line power by the system s line power switch Line Power Requirements The equipment can operate from any single phase AC power source that supplies between 100 and 240 V at a freque
244. ta acquisition board 1 Follow the instructions provided in the data acquisition board manual specifically the Installation and Troubleshooting sections Testing the Output Ports To test that the output ports are functioning properly on the source optics module 1 Ensure that the source optics module is not scanning The Laser Sweeping light on the front of the unit is off when the unit is not scanning 2 Put the tunable laser source into manual mode by ensuring that the Remote key on the front panel is not lit The Remote key toggles on and off when it is pressed 3 Set the power on the laser source to 3 dBm Press the Enable key on the front panel Verify that the output laser power is within 0 5 dB of the set value using a power meter 4 Measure the IL through the SOM to the output ports using an external power meter hooked up to the Output 1 Output 2 Output 3 or Output 4 port on the front of the source optics module The nominal IL value for one output is approximately 6 dB There is a 3 dB increase in loss for the two output module and a 6 dB increase in loss for the four output module The measured power specifications are 1 output cassette gt 8 dBm 52 Getting Started Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com 5 2 output cassette gt 11 5 dBm 4 output cassette gt 15 dBm Test the remaining output ports If the unit does not appear to be functi
245. te PDL Moves the image so that the last clicked position is brought to the Terms 3 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Passband Process and Display Options tab page Reference marker Reference tab page Window resize buttons Window title area Zero loss Zoom in Zoom out 4 Terms center of the plot Subsequent pans use the same translation The operational region of a filter in spectral space It is sometimes defined as the 6 dB bandwidth of a filter The tab page where the user selects the type of trace to be displayed and the type of smoothing and averaging to be applied A special marker from which the coordinates of other markers in wavelength and power are measured Where the user selects what reference is to be taken dark voltage zero loss or both and whether prompts are required after each channel If a window can be resized there are three buttons The left button is the Minimize button to minimize the window as an icon the middle button is the Restore or Maximize button to toggle between the custom sized window and the screen size window and the right one is the Close button to close or quit the current configuration window If the window cannot be resized only the Close button is available Contains the name of the saved configuration window The default is SWSConfiguration00n where n 0 to 255 A reference measuremen
246. the SWS15100 ini file must be modified The ini file view below shows how the calibration parameters are grouped as C Band and L Band The C Band Calibration Parameters for example are shown for Carbon 12 Carbon 13 and HCN all but the Carbon 12 are commented out by the use of at the 110 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com beginning of the line The effect of this is that the Carbon 12 parameters are used for C Band calibration To calibrate using an alternative cell remove the from the 4 lines relating to that cell and add them before the lines for the Carbon 12 section Save these changes and restart the SWS15100 program to perform calibration with your new choice of gas cell kli SWS15100 ini Notepad OF x File Edit Search Help Calibration C Band Calibration paramaters Peak1 1526 656 Carbon Peak2 1556 178 Carbon Threshold1 1 3 Threshold2 6 1 Peak1 1521 6611 Carbon Peak2 1546 8281 Carbon Threshold1 1 Threshold2 6 1 Peak1 1528 486 Peak2 1561 6344 Threshold1 89 3 Threshold2 89 3 L Band Calibration parameters Peak1L 1543 1148 HCN Peak2L 1561 6344 HCN 3 Threshold1L 6 3 Threshold2L 9 3 Peak1L 1542 3837 Carbon 13 Peak2L 1556 178 Carbon 13 Threshold2L 6 1 Figure 92 View of the INI file in Microsoft Notepad Operating and Maintenance Instru
247. to the polarization To compute this the Mueller matrix is computed from the insertion loss measurement at the four linearly independent polarization states produced by the four state polarization controller From the Mueller matrix the polarization vector that produces the maximum insertion loss is computed The Mueller matrix is then used to find the insertion loss for this polarization state The maximum insertion loss shown is the maximum that is possible for the device at the stated wavelength without respect to the polarization state Any insertion loss measurement made on the device must fall within the minimum and maximum envelopes as defined Polarization Dependent Loss The PDL of a device is the positive difference between the maximum and minimum insertion losses in linear power scale The loss is converted to dB and displayed as a function of wavelength Passband The passband of a device is the bandwidth calculated at a specified threshold relative to the center wavelength of the device the ITU center wavelength or the center wavelength of a predefined custom channel This wavelength is referred to as the reference wavelength The power at the specified threshold is found relative to the reference wavelength and the bandwidth is computed at this power level Flatness The flatness of the device is a measure of the slope of a straight line that is a best linear fit to the top of the trace in a given channel Flatness is cal
248. to 1630 nm at 20 nm s for the L band version Although operating instructions are contained in this manual for using the tunable laser source within the SWS see the SWS15101 and SWS16101 Tunable Laser Source User s Manual document SD000319 for more information The source optics module provides real time measurement of the wavelength of the signal filters the signal to improve its signal to noise ratio and controls the tunable laser operation The standard SWS package includes a single output on the front of the unit Two or four output options are also available The source optics module comes with standard FC PC universal connectors The source optics module and the tunable laser source can be installed in the supplied transmitter cabinet The cabinet is a standard half rack wide and three units high in accordance with Standard EIA 310 D Receiver The receiver measures the power throughput from the DUT and uses a proprietary protocol to communicate with the computer The standard SWS package includes one receiver chassis but more can be added to increase the number of channels and therefore the number of devices that can be tested The receiver chassis communicates with the user supplied computer through the parallel port A data acquisition board available as an option can replace the parallel interface The board can be used to speed up data acquisition on systems with a large number of detector modules The chassis usually house
249. to the receiver control module If the problem persists call the local JDS Uniphase representative or the service hotline table continued 192 Reference Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com olem semen 8 Polarization state status bar on the right bottom corner of the plot window shows unknown or unknown OR Error message TPS Error or error 4006 is displayed Error message Scan Request Error appears when an attempt is made to acquire a trace This message can appear if the optional PDL controller is used or not To ensure that the polarization state is detected properly e Stop the software e Press STOP on the SOM e When the laser stops scanning press DISPLAY e Inthe display that appears on the SOM record the value of the parameter Points e f Points value is not displayed the version of the firmware is not current Call JDS Uniphase for assistance in determining the value of Points e In the SWS15100 INI file in the CAWINDOWS directory ensure that the MaxPoints parameter is the same as the value of Points read from the SOM If the file has been changed close the software and re open it before trying again e If there is a data collection problem as indicated by the continuation of the error message inspect the ribbon connection to the I O card on the back of the computer If possible replac
250. ts specifications for the source optics module Table 6 Source Optics Module Specifications Input voltage 100 to 240 V AC 50 to 60 Hz autosensing Power consumption 100 VA maximum Fuse type T1A 250 V table continued General Information and Specifications 17 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Physical Weight Dimensions W x H x D 48 3 x 13 3 x 37 5 cm 48 3 cm or 19 in subrack 3 U high in accordance with EIA 310 D allow 10 cm front clearance and 8 cm rear clearance for cables Number of outputs 1 2 or 4 option is specified Environmental Fr temperature 10 to 40 C Storage temperature temperature 40 to 70 C Humidity Maximum 80 RH at 40 C operating Maximum 90 RH at 65 C non operating Table 7 lists the optical specifications for the tunable laser source Table 7 Tunable Laser Source Optical Specifications Mode hop free range P 3 dBm in C band 1520 to 1570 nm Mode hop free range P 3 dBm in L band 1540 to1630 nm 1 Measured with a 100 MHz resolution Fabry Perot interferometer IEEE is a registered trademark of the Institute of Electrical and Electronics Engineers Inc Table 8 outlines other specifications for the tunable laser source 18 General Information and Specifications Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Table
251. turns the error number and an error message from the error queue See Table 19 for a list of error numbers and their associated messages SYST ERR returns 0 No error SYSTem VERSion Syntax SYSTem VERSion Returns the formatted numeric value the of the SCPI version number SYST VERS returns 1995 0 SYSTem INFOrmation Syntax SYSTem INFOrmation Returns the system information for the port specified Example SYST INFO 1 returns Module Type Serial Number Version Number Description User Commands The following tables describe SCPI user commands ROUTe SCAN Syntax ROUTe SCAN Returns the available channel list from the source optics module system ROUT SCAN 182 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ROUTe CLOSe ROUTe CLOSe lt space gt lt channel_list gt Function Selects the channel list on which the GPIB processor is to operate on subsequent commands ROUT CLOS 1 4 ROUTe CLOSe STATe ROUTe CLOSe STATe Function Returns the currently selected channels For example if channels 1 to 3 4 to 5 and 5 to 7 are closed the channel list is 1 3 4 5 5 7 Example CLOS 1 2 3 5 CLOS STATE returns 1 2 3 4 5 Do not forget the space between CLOS and the bracket SOURce WAVElength START SOUR WAVE START lt space gt lt NRf gt Function Causes the source optics
252. ue When a dark voltage measurement has been done for the specified channel the return value is 1 TRUE When a dark voltage measurement has been done for the specified channel the return value is 0 FALSE When there is an error the return value contains the error number getAverageDarkVoltagePower Function Description o O Purpose The getAverageDarkVoltagePower function is used to get the average power measured during a dark voltage measurement This function is called after the dark voltage measurement for the specified channel has been performed C prototype int getAverageDarkVoltagePower unsigned short chID double dAvePower VB prototype Declare Function getAverageDarkVoltagePower Lib SWS15100 ByVal chID ByRef dAvePower As Double As Long Input unsigned short chID This is the channel number Output double dAvePower This is the average dark voltage power in dBm Return Value If there is no error the return value is 0 If there is an error the return value contains the error number isTraceDone Description Purpose The isTraceDone function checks for the status of data acquisition Programming Guide 131 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Function Description C prototype int isTraceDone VB prototype Declare Function isTraceDone Lib SWS15100 As Long Return Value When the trace is done the function ret
253. um of once each day Specifications are written based on a reference made directly before device testing To zero the system 1 Select the physical channel and follow the instructions in the Using SWS Software section Zeroing for a DUT To zero the system for a DUT such as a Fiber Bragg Grating without using a circulator and reflector 1 Setup the equipment as shown in Figure 75 Receiver Chassis Source Optics Module FC APC FC PC se eye e po Qas eiaa soome ate Figure 75 Zeroing the System for a DUT Operating and Maintenance Instructions 89 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com 2 Select the channels and follow the instructions in the Using SWS Software section An example of the fiber setup for zero loss is shown in Figure 76 in this case to detector Channel 2 No messages are displayed if there is a problem such as the wrong detector module channel being used or forgetting to turn the transmitter unit on The scans are stored by the system Receiver Chassis Source Optics Module FC APC FC PC eye 7s E 73 a s Q wt riptane eerie kal L L e i e FC APC FC PC FC PC mating sleeve Figure 76 Acquiring a Reference The next set of reference scans taken overwrites the currently saved scans To avoid connector loss variation do not disconnect the jumper or mating sleeve from the output of t
254. unable Laser Source The tunable laser source box contains the following items SWS15101 or SWS16101 tunable laser source FC APC FC PC 2 m polarization maintaining fiber jumper Mounting hardware Power enable key AC power cord SWS15101 and SWS16101 Tunable Laser Source User s Manual document SD000319 Transmitter Cabinet The transmitter cabinet box contains the following item e OWB10001 transmitter cabinet The transmitter cabinet is completely assembled Getting Started 25 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Installing the Source Optics Module and Tunable Laser Source Figure 3 and Figure 4 show the transmitter unit setup from the front and back The polarization controller shown on the top shelf is optional Polarization Controller jens e e amp a Source Optics Module A i FOrPC e 6 090 080 6 o Tunable Laser Source G g FGJAPC FCPC Transmitter Cabinet Figure 3 Transmitter Unit Front Setup Transmitter Cabinet Polarization Controller Source Optics Module Tunable Laser Source power cord Fi X e ee 4 l power cord power bar to power supply Figure 4 Transmitter Unit Rear Setup The source optics module comes with standard FC PC universal connectors Do not interchange them with the FC APC universal connectors on the receiver control module See the Attaching Universa
255. unction is used to write a string of characters to the LED display of a selected channel C prototype int writeLED unsigned short chID char atext VB prototype Declare Function writeLED Lib SWS15100 ByVal chID ByVal atext As Long Input unsigned short chID This is the channel selected for writing char atext This is a string that the user writes to the channel s LED The string must have exactly four characters Return Value When there is no error the function returns zero When there is an error the return value contains the error number blinkLED Function Description o O Purpose The blinkLED function is used to control the blink of the LED display of the selected channel C prototype int blinkLED unsigned short chID unsigned short OnOff 138 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Function Description S O VB prototype Declare Function blinkLED Lib SWS15100 ByVal chID ByVal OnOff As Long Input unsigned short chID This is the channel selected for blinking unsigned short OnOff This is Boolean When the value is 1 blinking is turned ON When the value is 0 blinking is disabled The previous state is irrelevant Output None Value Se there is no error the function returns zero When there is an error the return value contains the error number setPolarizationControl Function De
256. units in the Configure Chart Properties section of the Process and Display Options tab page e The units for the x axis can be either wavelength nm or frequency GHz e The units for the y axis can be either linear or logarithmic dB Changing Scales on the Plot Axes The scale factors used to display the acquired traces can be changed easily To change the parameters for the axes press the Axes button on the Process and Display Options tab page A dialog box appears as shown in Figure 69 Use this dialog to change the minimum displayed value the maximum displayed value and the origin 2D Chart Control Properties x Axes Scale Axis Grid Lines AxisStyle GridStyle z Data Max 1630 IV IsDefault Data Min 1541 16 IV sDefault Max 1630 I IsDefault Min 1540 I IsDefault Origin 1540 IV IsDefault 80 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Figure 69 Dialog Box to Modify Axis Properties Selecting Chart Line Styles Press the Line Styles button in the Process and Display Options tab page to display a dialog box shown in Figure 70 This dialog can be used to change the line thickness the line style and color of any trace Select modifications from those displayed and click the Apply button to view the changes 2D Chart Control Properties x ChartGroup1 LineStyle Pattern Solid v Width
257. unning smoothly with no long unexplained delays 212 Reference Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com component Gonation measurement Answer commen a Ler SWS Software Computer Interface Are there insertion loss YES errors NO Are there wavelength YES errors NO Has a wavelength YES calibration been performed NO Has the SWS software YES crashed during operation NO Are DIAGNOSTICS enabled YES in the SWS15100 INI file NO Is VALIDATE 0 in the YES SWS15100 INI file NO Is a data acquisition card YES installed and in use NO Measurement SWS15100 program running Is a parallel port interface YES installed and in use NO Are all receiver components including all receiver chassis and the YES computer and the monitor plugged into the same NO electrical circuit ona single power bar Is the electrical circuit YES properly grounded T Aee 1 Install device as DUT Are references taken periodically at least once a day when characterizing devices Has a dark voltage measurement been performed NO When measuring an FBG YES in reflection is the transmitted light properly NO Reference 213 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com component Gonation measurement Answer Commen temina PP What scan rate is being
258. urement for the selected channel connecting the system as shown in Figure 78 Receiver Chassis Source Optics Module FC APC FC PC ve EEE B R Se 8 TV s Q 05 vegve o AAGE ut L a La e a FC APC FC PC FC PC mating sleeve Figure 78 Acquiring a Zero Loss Reference 2 Connect the device using the same jumpers as used for the zero loss reference Follow the procedure outlined in the Measuring Insertion Loss section for IL measurements or the Measuring Polarization Dependent Loss section for PDL measurements to acquire and display the trace Measuring Insertion Loss of a Device To measure the insertion loss of a device 1 Connect the DUT to the SWS as shown in Figure 79 Follow the instructions provided in the Using SWS Software section to acquire and analyze an insertion loss trace The section contains an explanation of the types of markers that can be placed on the plot the various types of analyses that can be performed on the data and the ways in which the plot can be manipulated Operating and Maintenance Instructions 95 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Receiver Chassis Source Optics Module FC APC FC PC Device Figure 79 Characterizing a Single Output Device Measuring PDL of a Device The PDL of a device can be measured if the SWS includes the four state polarization controller SWS15104 To measu
259. urn value contains the error number getBandwidth Function Description o O Purpose The getBandwidth function calculates the bandwidth of the largest peak that is contained in the pPowData power array Call this function only after obtaining the pPowData array through a call to the getlLTrace function The characteristics of the peak as refpeak interLevel and baseref must be filled by the caller C prototype int getBandwidth double pLamData double pPowData unsigned short dataSize unsigned short refpeak double interLevel unsigned short baseRef double pBandwidth VB prototype Declare Function getBandwidth Lib SWS15100 ByRef pLamData As Double ByRef pPowData As Double ByVal dataSize ByVal refPeak ByVal InterLevel As Double ByVal baseRef ByRef pBandwidth As Double As Long Input double pLamData The pLamData array stores the wavelength for each data point in the trace double pPowData The pPowData array stores the measured power levels dB scale for each point in the trace Each point from the pPowData array has a corresponding point in the pLlamData array unsigned short dataSize This is the size of arrays pLamData and pPowData allocated by the user and is the size of the acquired trace returned by the function getDataSize unsigned short refpeak This is an integer type that has the following set of values IMAX PEAK REF 0 MIN PEAK REF 1 double interLevel The interpolation level is the heig
260. urns 1 When the trace is not done the function returns 0 When there is an error the return value contains the error number lt 0 getTraces Description The getTraces function stores the raw data to cache acquired through a call to the triggerTrace function C prototype int getTraces unsigned short channelList unsigned short numChannels VB prototype Declare Function getTraces Lib SWS15100 ByRef channelList ByVal numChannels As Long Input channelList is a pointer to the channel list numChannels is the number of channels from which data is to be collected Output None Return Value When there is no error the function returns the number of bytes written to cache When there is an error the return value contains the error number getTracePolarization Function Description o O Purpose The getTracePolarization function retrieves the polarization of the acquired trace collected with the getTraces function C prototype int getTracePolarization short polar VB prototype Declare Function getTracePolarization Lib SWS15100 ByRef polar As Long Output short polar This is a set of integers defined as SO 0 S1 1 S2 2 S3 3 S4 4 POLARIZATION END MARKER 5 132 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Function Description o Return Value When there is no error the function retu
261. ut unsigned double pdPassBand This is the computed passband for the full wavelength range Return value When there is no error the function returns zero When there is an error the return value contains the error number Programming Guide 149 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com getLocalPassBand Description The getLocalPassBand function computes the passband of the largest peak contained in the pPowData power array within a specified wavelength range Call the function after obtaining pPowData array through a call to the getILTrace function The refpeak parameter must be specified by the caller C prototype int getLocalPassBand double pdLamData double pdPowData unsigned short dataSize double dStartWave double dStopWave unsigned short refPeak unsigned short baseRef double InterLevel unsigned short refWave double pdPassBand VB prototype Declare Function getLocalPassBand Lib SWS15100 ByRef pLamData As Double ByRef pPowData As Double ByVal dataSize ByVal dStartWave As Double ByVal dStopWave As Double ByVal refPeak ByVal baseRef ByVal interLevel as Double ByVal refWave ByRef pdPassBand As Double As Long Input double pLamData The pLamData array stores wavelength points of the trace double pPowData The pPowData array stores IL power level dB scale points Each point from the pPowData array has a corresponding point i
262. uter interface to the receiver Confirm that the data acquisition board or parallel port connector is properly configured and operational See the Testing the Data Acquisition Board section 54 Getting Started Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Operating and Maintenance Instructions Source Optics Module Front Panel Figure 30 shows the front of the model SWS15102 source optics module Model SWS16102 is similar 421 105 Uniphase sws ss22 SOURCE OPTICS MODUS sate O RED J O vile eens O aars Figure 30 Source Optics Module Front Panel Model SWS15102 Source Optics Module Rear Panel Figure 31 shows the back panel of the source optics module Gi CONTROL RELAY PSIG DANEN Figure 31 Source Optics Module Rear Panel Tunable Laser Source Front Panel Figure 32 shows the front of the tunable laser source A 105 Uniphase SWS1510 TUNABLE LASER SOURCE DATA MODE SETUP z Pe 3 01 dBm l 46 8 MA Figure 32 Tunable Laser Source Front Panel Operating and Maintenance Instructions 55 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Tunable Laser Source Rear Panel Figure 33 shows the rear panel of the tunable laser source output Med Syre Wd Ov Figure 33 Tunable Laser Source Rear Panel Receiver Front Panel Figure 34 shows the front of the OWB10
263. utput port If the power is less than 11 dBm the power is low Measure another port If the other port is within specification take another reference Acquire another scan If the problem is resolved the source of the noise is either the UCA or the output port on the SOM Replace the UCA and perform the measurements again If the problem is caused by the output port of the SOM contact the local JDS Uniphase representative or the service hotline to arrange replacement of the output cassette The correct power at each of the output ports varies with the number of output ports The correct power levels are 1 output 5 dBm 2 outputs 8 dBm 4 outputs 11 dBm If not enough power is output by the SOM Measure the power going into the SOM The correct power level is 3 dBm Measure the power coming out of the SOM at the Signal Cond Out port The correct power level is 2 dBm If the power levels are not within specification call the local JDS Uniphase representative or the service hotline to arrange repair of the SOM If the input power levels are within specification but there is no output power verify that the Signal Cond In port and the Signal Cond Out port are connected table continued Reference 197 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com The noise seen on a trace with only a fiber jumper is greater than 0 02 dB In PDL
264. value contains the error number Programming Guide 133 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com getDark Voltage Function Description o Purpose The getDarkVoltage function acquires a new dark voltage value for the specified channel This function is called after the user acquires raw data through a call to triggerTrace and isTraceDone functions with the setup for a dark voltage measurement in place for example detector capped C prototype int getDarkVoltage unsigned short chID VB prototype Declare Function getDarkVoltage Lib SWS15100 ByVal chID As Long Input unsigned short chID This is the channel ID for which the dark voltage measurement is updated Output Return Value When there is no error the function returns zero When there is an error the return value contains the error number getiL Trace Function Description o Purpose The getILTrace function calculates the IL of a DUT that is connected to the specified channel chID The user must allocate space for pLamData and pPowData arrays that become filled with IL trace points C prototype int getILTrace unsigned short chID double pLamData double pPowData unsigned short dataSize short pola VB prototype Declare Function getlLTrace Lib SWS15100 ByVal chID ByRef pLamData As Double ByRef pPowData As Double ByVal dataSize As Long ByRef pola As Long Input unsi
265. velength Difference Wavelength Reading nm within 0 003 nm nm 1 1525 6190 525 6190 ooo o Le AE ee a E a E a EE a a ed ooo o ooo o a ee i E 15274007 a E HE er a a ooo o C a ae ed a ae a ae a a a a pe Hi a a a gt a Ed 15393855 15399735 15405674 15411670 Lc Ea a a Ss he 4 a SS a a 1529 7566 529 7566 1531 7436 531 7436 NK 23 22 21 20 19 18 17 16 15 14 13 12 11 10 7 r OJ B amp B Ww Ph oO oO N P 7 10 11 12 13 14 15 16 20 21 22 23 24 25 26 27 Operating and Maintenance Instructions 107 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Wavelength Difference Wavelength Difference Wavelength Reading nm within 0 003 Wavelength Reading nm within 0 003 nm nm oo l soe Calibrate the SWS to the acetylene trace 1 The objective of calibrating the SWS is to get a best fit match between the gas cell reference values and the acquired trace values 2 On the plot double click at The first peak position to be recalibrated The wavelength will then be shown in the Peak 1 field in the Acquired Acetylene Cell Peaks area of the window Double click at a second peak position to be recalibrated The second wavelength will then be shown in the Peak 2 field 3 Click the Re Calibrate button The user is asked to
266. vennnnernnennr 222 5 eg ET EEE EE ER RT EE 222 NJ seen 223 Minimum Loss in PDL Mode rennnnvonennvonnnnvnnnnnvnnnnnvnnnnnvnnnnnvnnnnnnnnnnnnnnsnnnnnnnnnnnnne 223 Maximum Loss in PDL Mode 52225 224 Polarization Dependent LOSS suvasaagspassennGujdnnapnqumnnnmnende 224 BS oTe Lo RE cet ec oy Seas ER EE AE ER EN 224 EE ET EE NE beens 224 TN 224 C m lative Crosstalk TXT s ee a 224 Measuring PaAraniGlel Sc icsczcceceretschcaeed ciucdteciscnonblonuntenaiacsdeeditcctetladacsntaaveteneeanele 225 DENS EE EE reese eee cae ee eee aes 229 Figure 1 Swept Wavelength System with Polarization Controller and Device Under Test 10 Figure 2 Connector Cleaning connector type can vary ccscccetceeeeeeeeeteeceeeeeeeeeeeesaeeseaeeeeeeeaes 24 Figure 3 Transmitter Unit Front Setup rrannvnnnvennrrnnnvvnnnvnnnvenrnnnn venn nvnnnvennrnnnnvennnennnnenernnnnnennnee 26 Figure 4 Transmitter Unit Rear Setup rrannvnnnvonnrnnnnvvnnnvnnnvennrnnnnvennnvnnnnnnnrnnnnvennnennnrenernnsnnennnee 26 Figure 5 Four Output Ports on Source Optics Module case ussicesselesensetadsacesacsantsass tess eainamiveedensw es 29 Figure 6 Receiver Front Setup cc ccccceceesceeeeeeeeceaeeeeeeeeeeeeaeeceaeeaeeeneeeaeesaeseaesseneesaaeseaeeeeeeeaes 30 Fig re 7 Receiver Rear SoU Ker SAGE ng 31 Figure 8 Front panel of the Dual Band Selector Switch Module DBSSM runrrernrnrerrnnnvvnnnne 32 Figure 9 DIP switch settings avenue 33 Figure 10 Start
267. ver uses the parallel port interface for communication with the computer The system has a distributed architecture that is a transmitter with a single tunable laser source can be connected to multiple independent receivers saving considerable test instrumentation costs Optical fiber is used to connect each receiver station to the transmitter Data Acquisition Board The optional data acquisition board is a parallel interface through which the computer communicates with and controls the receiver It is installed in a user supplied computer Software The software performs several functions including controlling the testing process retrieving data analyzing and summarizing data plotting results and storing raw data or processed results It displays measurement results versus wavelength or frequency A zoom feature provides the capability to expand the display in both wavelength and amplitude Retrieval of a plot for superimposition on an existing plot is possible The software has a graphical user interface GUI that enables the selection of various data processing options analysis functions and display and storage options User Supplied Computer A computer is used to run the software control the testing process and use and store the results Key Features e Ability to test simultaneously multiple outputs from a device e Reduction in total test time as the number of outputs increases e Distributed architecture the las
268. w artisantg com Parallel Port Interface Troubleshooting Start OVWB10002 Check parallel port cable yes 310 System Error Contact JDSU css ye to page 2 OWE dip switch is Open SWS Setup Test Wizard OAB LEDs are on Re start OWB10002 Restart SWS set tn Parallel SetupTest Wizard Port option OAB LEDs are on Run Test Wizard Set Test Vizard to Parallel Port VO section pass Autodetect Re start OVWB Restart Test yes Wizard VO section pass ni Contact JDSU css Oo to page 2 Figure 112 PPI Troubleshooting Procedure Section 1 Reference 207 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Array Size pass dumber of data points below the floor limit Check SOM to CM communication Calibration no values pass yes Copy M and LO i Start SWS values from the Launch OVE info Program DISPLAY section of the SOM sah td Stup Is dn ves successfully values pass completed Configure PC DM CM need parallel port for calibration SPP ar Contact JDSU Bi Directional css protocol Start SWS Program Take a reference and Acquire a trace on the same setup no Afe the values eg within 0 03 dB Figure 113 PPI Troubleshooting Procedure Section 2 208 Reference Artisan Technology Group Quality
269. with a set of Dynamic Link Libraries DLLs that can be used to develop software to suit unique measurement requirements The DLLs access the SWS receiver hardware thereby allowing access to all SWS functionality Using the supplied DLLs applications can be developed in the following environments e Microsoft Visual Basic VB e Cor C e Pascal e National Instruments LabVIEW The DLLs provide all the hardware control capability such as trace triggering data acquisition and front panel LED control that are required to build applications to suit research production or test environments These DLLs can be used to perform all the basic processing of raw data This section explains the development of user specific applications using the DLLs In addition to the DLL information provided in this document examples using SWS DLLs are provided in the distribution CD ROM and can be accessed from the SWS15100 Development examples directory after software installation DLL Architecture The SWS15100 DLL software is built as a Win32 C subroutine library on top of a set of three DLLs that control and manage all system hardware and its basic functions Table 17 These DLLs are OWB1 DLL OWB2 DLL and OWB3 DLL Table 17 DLL Architecture 6 highest Client Applications written in Visual Basic C LabVIEW and others SWS15100 DLL located in the Development directory OWB3 DLL located in the SWS15100 directory OWB2 DLL located in the
270. within nm 0 003 nm 0 003 nm 1513 2007 1525 7607 De all EE E 1516 4419 1530 3718 Operating and Maintenance Instructions 105 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Peak Wavelength Difference Wavelength Reading nm within nm 0 003 nm 1516 8754 1517 3152 1517 7613 1518 2138 1518 6725 1519 1376 1519 6090 1520 0867 1520 5707 1521 0611 1521 5579 1522 0610 1522 5704 1523 0862 1523 6084 1524 1369 Peak Difference Wavelength Reading nm within nm 0 003 nm oss sms seer zs wa iso see iss oo o a a oo a a E AE ME a AE ae gt OT 1 k D N NI RIO k OJA 29 15072000 z 2 2 2 2 3 4 25 N J tae 1550 178 1 or af 1544 567 Power dE 1536 532 114 1526 056 i 5 26 947 1523757 1539 974 1527 860 1520 1530 1540 1550 1560 Wavelength nm Figure 89 Absorption Lines of C H Acetylene Cell 106 Operating and Maintenance Instructions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Table 15 Wavelengths of Absorption Lines for C2H2 Acetylene Cell Peak Wavelength Difference Wavelength Reading nm within 0 003 nm nm Peak Wa
271. within this specification but the noise persists call the local JDS representative or the service hotline Verify power to the control module e f the power to the DUT is less than expected measure the power going into the control module Power is 11 dBm without a polarization controller or 14 dBm with a polarization controller If power to the DUT is within specifications power is being lost in the control module If power is lost in the control module clean the UCAs on the control module Remove the UCA connectors on the CM Clean the connectors and exposed ferrules thoroughly Re install the UCAs Perform a reference Acquire a trace A persistent problem indicates that one of the UCAs is damaged Verify the power at the UCA on the control module e Measure the loss through each UCA A small loss such as 0 02 dB is acceptable e If the loss is larger replace the UCA and try again table continued Reference 195 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Problem semen The noise seen on a trace Verify the power to the control module CM from the with only a fiber jumper is transmitter greater than 0 02 dB Verify that the UCAs are good Disconnect the polarization controller if one is installed Attach a jumper between the Signal Cond Out port and the Signal Cond In port Verify that the laser is scanning M
272. y Note This function returns the last polarization for specified channel the last time any data was collected for the channel To find the latest polarization use getTracePolarization instead C prototype int getChannelPolarization unsigned short chID short polar VB prototype Declare Function getChannelPolarization Lib SWS15100 ByVal ChID ByRef polar As Long Input Unsigned short chID Channel ID for which polarization is sought Output short polar This is a set of integers defined as S0 0 S1 1 S2 2 S3 3 S4 4 POLARIZATION END MARKER 5 Return Value When there is no error the function returns zero When there is an error the return value contains the error number isDarkVoltageDone Description Purpose The isDarkVoltageDone function is used to check if a dark voltage 130 Programming Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Description measurement has been performed for the specified channel C prototype int isDarkvolatgeDone unsigned short chID char timeStamp VB prototype Declare Function isDarkVoltageDone Lib SWS15100 ByVal chID ByVal timeStamp As Long Input unsigned short chID This is the channel to be checked Output char timeStamp This is the time of the last zero loss reference for the specified polarization At least 32 characters must be assigned to this array Return Val
273. yVal dStartWave As Double Byval dStopWave As Double ByVal refPeak ByRef PeakIndex ByRef pPowPeak As Double ByRef pLamPeak As Double As Long Input double pLamData The pLamData array stores wavelength points of the trace double pPowData The pPowData array stores IL power level dB scale points Each point from the pPowData array has a corresponding point in the pLamData array unsigned short dataSize This is the size of arrays pLamData and pPowData allocated by the user This is the size of the acquired trace retrieved by the user using the function getDataSize double dStartWave Specifies the wavelength at which to start processing double dStopWave Specifies the wavelength at which to stop processing Output unsigned short refpeak This is an integer set of values MAX_PEAK_REF O find maximum peaks MIN PEAK REF 1 find minimum peaks unsigned short peakIndex This is the position of the peak in the pPowData array double pPowPeak This is the power of the peak the maximum power of the pPowData array within the wavelength range specified double pLamPeak This is the wavelength of the peak that corresponds to the pPowPeak value Return Value When there is no error the function returns zero When there is an error the return value contains the error number Programming Guide 145 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com getLocalBa

Artisan Technology Group is your source for quality new and

Contents

Download Pdf Manuals

Related Search

Related Contents