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TA-7600 User Manual - Newport Corporation

1. Newport Corporation Calling Procedure If there are any defects in material or workmanship or a failure to meet specifications promptly notify Newport s Returns Department by calling 1 800 222 6440 or by visiting our website at www newport com returns within the warranty period to obtain a Return Material Authorization Number RMA Return the product to Newport Corporation freight prepaid clearly marked with the RMA and we will either repair or replace it at our discretion Newport is not responsible for damage occurring in transit and is not obligated to accept products returned without an RMA E mail rma service newport com When calling Newport Corporation please provide the customer care representative with the following information Your Contact Information Serial number or original order number Description of problem i e hardware or software To help our Technical Support Representatives diagnose your problem please note the following conditions Is the system used for manufacturing or research and development What was the state of the system right before the problem Have you seen this problem before If so how often Can the system continue to operate with this problem Or is the system non operational Can you identify anything that was different before this problem occurred Preface Table of Contents i EU Declaration of Conformity 0 eee eccssceccceeeeceseen
2. 54 Computer Interfacing Remarks This command turns the laser ON or OFF When turning the laser ON the light above the front panel s LASER POWER switch will flash for six seconds default before the power is turned ON The flash time can be changed using the ONDELAY command If no value is specified e The Tapered Amplifier returns NO PARAMETER SPECIFIED e No other action is taken If the value specified is not equal to 0 or 1 e The Tapered Amplifier returns VALUE OUT OF RANGE e No other action is taken If the value is 0 or 1 e The amplifier output is turned OFF or ON e The Tapered Amplifier returns OK Argument Value Description State Integer 0 turns the laser OFF 1 turns the laser ON See Also ONDELAY OUTPut STATe OUTPut STATe Description Amplifier output enable state query Syntax OUTPut STATe Remarks This command returns the amplifier output enable state Response Description Value 0 amplifier output OFF 1 amplifier output ON See Also ONDELAY OUTPut STATe SENSe CURRent DIODe Description Syntax Remarks Response See Also Actual tapered amplifier diode current query SENSe CURRent DIODe This command returns the magnitude of actual tapered amplifier diode current Description Value Actual tapered amplifier diode current in milli Amperes mA SOURce CURRent DIODE SOURce CURRent DIODE Computer Interfacing 55 SENSe POWer DIODe Description Syntax Remarks Respo
3. New Focus TA 7600 LN Figure 20 A sample title screen 4 3 4 Instrument Firmware Version Screen Immediately after the title screen the next screen shows the instrument firmware version and date TA 7600 LN Fwr v1 8 12 09 13 Figure 21 A sample Firmware Instrument Version Screen 4 3 5 Amplifier Head Startup Information Screen The Amplifier Head Information screen is displayed for a few seconds after the Instrument Firmware Version screen every time the instrument is powered ON This screen is used to display the model and serial number of the laser head connected to the Tapered Amplifier Controller A sample screen is shown in Figure 22 System Operation 41 4 3 6 4 3 7 TA 7613 S N TA 0005 Figure 22 A sample Amplifier Head Information screen Main Screen The Main screen is displayed after the Amplifier Head Information screen When the unit is turned ON for the first time the main screen will show 0 0 mA laser current The User can then set the desired current value using the Control Knob The value in mA will be displayed on the top line of the Main Screen The bottom line will reflect this value relative to the maximum diode current as a horizontal bar Figure 23 shows what the Main Screen will look like on startup Current 0 0mA Figure 23 A sample Main Screen Information Screen EL 1 The Information screen is displayed by pressing the button labeled on the top rig
4. SENSe POWer INPUT Sense input power SENSe TEMPerature TEC Sense TEC diode temperature Source Commands Syntax Description SOURce CPower Set constant current or constant power mode SOURce CPower Returns mode of operation constant power or constant current SOURce CURRent DIODe Set amplifier diode current setpoint SOURce CURRent DIODe Query amplifier diode current setpoint SOURce POWer DIODe Set amplifier diode power setpoint SOURce POWer DIODe Query amplifier diode power setpoint System Commands Syntax Description SYSTem BAUDRATE Set RS 232 baud rate SYSTem BAUDRATE Query RS 232 baud rate SYSTem ENTIME Query Tapered amplifier usage time SYSTem MCONtrol Set Tapered Amplifier operation mode remote or local SYSTem MCONtrol Query Tapered Amplifier operation mode remote or local SYSTem LASer MODEL Query laser model number SYSTem LASer SN Query laser serial number SYSTem LASer REV Query laser revision number SYSTem LASer CALDATE Query laser calibration date SYSTem LASer WAVElength Query laser wavelength SYSTem LASer CONDition Query laser condition register SYSTem LASer POWer Query minimum input and maximum output power levels 50 Computer Interfacing IDN Description Identification string query Syntax IDN Rema
5. 5 3 6 Response Terrinalion ies RR eed De se es 46 5 4 Tapered Amplifier Operation Mode iese ee 46 5 5 USB Communication a cricice NS se EER GE Giron Ge SE Ne ee fe 46 5 6 RS 232 Communication s 6 4naiawaianasstianabawurtass 47 5 7 Commands Summary 25 5205 nes EER ga RE RR Bes es Bee see ie es eks Ge 47 5 7 1 Oe EE aa EEE a wanna 47 57 2 TPES OF COMMAS as cis RS ES eN ee ES be ed 48 5 7 3 Index of Commands sees De Ge Re De 48 6 Tips and Techniques 66 6 1 ers ie sie ER e RE N EE eats 66 6 2 Grounding a Laser Head Este Ego Ne Ee GE RE EE bee ees 66 7 Maintenance and Service 68 T L Enclosure Cleaning se N SR N Re N Ee WS a 68 Peds Fechmical Supporte sities EE Me ee eo ee EN GE ie bl oe ee 68 dos Obtaining SErvi e 2434 6 hae ed n oe aidan Ra eN 69 TA AR ML EE HE N EK 69 7 5 Sevice BOER SEN ERENS GE EG GE ESE SG RE Ee ee 70 8 Appendix A Error Messages 72 Beli Introd cti N se ee ER N GE GE N ge T2 8 Error Description oerien a E a R E 72 Preface ix List of Figures Figure 1 General Warning or Caution Symbol iese see ee 13 Figure 2 Electrical Shock Symbol iee sesse sees see ee Ge Gee 13 Pisure 3 GE Mark oes EA Ge Ee se Rd ae De Ad eee 13 Figure 4 Alternating Voltage Symbol ou esse see ee ee Re ee ee 13 Figure 3 On Symbol issie Ve kke SERS REEKS R Des be SV EG RS SS RES RS ee gie Ke N AG 14 Fipite 6 O Symbol se EE erat dank tte EA EE accents 14 Figure 7 Fuse symmbol sie SE ER einai e
6. s Manual Start Up Guide 2 IEC320 AC line cord with a NEMA 5 15P USB Cable for connecting the Tapered Amplifier to a computer If you are missing any parts or have questions about the parts you have received please contact New Focus 3 4 Choosing and Preparing a Suitable Work Surface The Model TA 7600 LN and the Tapered Amplifier Head may be placed on any reasonably firm table or bench during operation 3 5 Optical Requirements Three seed laser requirements must be met for amplification laser wavelength power and FC APC PM single mode fiber coupled input The seed laser must be at or near the specified center wavelength of the TA to achieve specified amplification output power The seed laser must be 2 10 mW The TA 7600 system has a safety feature that limits the TA current if the input power is lower than 10 mW This is to protect the tapered amplifier chip and to ensure system performance While not recommended the minimum input power can be reset by the user via computer interface Contact New Focus for further information The seed must be fiber coupled with an FC APC PM single mode fiber Contact New Focus or your local representative should you need further information on seeding requirements Getting Started 31 3 6 Electrical Requirements Before attempting to power up the unit for the first time the following precautions must be followed WARNING To avoid electric shock connect the instrument to properly e
7. sequence 5 3 6 Response Termination All the responses from the driver are terminated by a lt CR gt lt LF gt sequence 5 4 Tapered Amplifier Operation Mode The Tapered Amplifier supports two modes of operation LOCAL and REMOTE The Tapered Amplifier will be in LOCAL mode by default following a power reset In this mode all the main setpoints and system parameters can be adjusted by turning the control knob on front panel of the Tapered Amplifier Controller Output can be turned ON and OFF by pressing the CURRENT ON OFF button Please refer to Chapter 4 System Operation for a detailed description on how to accomplish these tasks When the Tapered Amplifier Controller is in REMOTE mode knob control is disabled setpoints and other settings can be adjusted only by issuing appropriate commands from a host PC The Tapered Amplifier Controller can be put into REMOTE mode by issuing the command SYSTem MCONtrol REM It can be put back in LOCAL mode by issuing SYSTem MCONtrol LOC command 5 5 USB Communication The instrument is designed to communicate with a host PC via a standard USB interface Before connecting the instrument to the USB interface the User should install the New Focus Tapered Amplifier application included in the software CD that accompanies the tapered amplifier The application automatically installs the right USB drivers The User can communicate with the tapered amplifier through this interface by using the appli
8. ECDL converting milliwatts of input power into watts of output power One such diode is the GaAs tapered amplifier diode In a GaAs tapered amplifier diode a tapered gain region of GaAs is electrically pumped inverting the carrier population in this region The output of an ECDL at a power Pseea can then be focused into the tapered portion of the GaAs tapered amplifier chip by way of a focusing lens As the beam propagates through the gain region it will experience amplification due to stimulated emission from electron hole recombination Anti reflection coatings on both the input and output facets of the tapered amplifier chip prevent self lasing and allow for the amplified beam to exit at the wide end of the taper with a power Pout Sufficient seed power from the seeding ECDL is necessary to surpass the lasing threshold of the tapered amplifier chip In addition for optimal amplification the seed wavelength must match as closely as possible the center wavelength of the gain band of the tapered amplifier diode and the seed beam polarization must be in accord with the polarization condition of the tapered amplifier diode When these conditions are met the seed beam can be optically amplified to yield nearly diffraction limited beam quality while preserving important spectral and spatial seed beam characteristics single longitudinal mode narrow linewidth etc Getting to Know Your Tapered Amplifier System CAUTION There are no user servi
9. SYSTem BAUDRATE Description RS 232 baud rate set Syntax SYSTem BAUDRATE Value Remarks This command controls the instrument s RS 232 baud rate If no value is specified e The Tapered Amplifier returns NO PARAMETER SPECIFIED e No other action is taken If the value specified is less than 0 or greater than 6 e The Tapered Amplifier returns VALUE OUT OF RANGE e No other action is taken If the value is between 0 and 6 e The RS 232 baud rate is changed per table below e The Tapered Amplifier returns OK Argument Value Description Value 0 Baud rate 1200 bps 1 Baud rate 2400 bps 2 Baud rate 4800 bps 3 Baud rate 9600 bps 4 Baud rate 19200 bps 5 Baud rate 38400 bps 6 Baud rate 57600 bps See Also SYSTem BAUDRATE SYSTem BAUDRATE Description RS 232 baud rate query Syntax SYSTem BAUDRATE Remarks This query returns the RS 232 baud rate Response Description Value 0 Baud rate 1200 bps 1 Baud rate 2400 bps 2 Baud rate 4800 bps Computer Interfacing 59 3 Baud rate 9600 bps 4 Baud rate 19200 bps 5 Baud rate 38400 bps 6 Baud rate 57600 bps See Also SYSTem BAUDRATE SYSTem ENTIME Description Laser enable time query Syntax SYSTem ENTIME Remarks This query returns the amount of time laser diode output has been enabled Response Description Value Laser diode enable time in minutes min See Also OUTPut STATe SYSTem MCONtrol Description Syntax Remarks Arg
10. The symbol in the figure above identifies the USB connector location on the Model TA 7600 LN Tapered Amplifier Controller Safety Precautions 15 1 3 9 Frame or Chassis Figure 9 Frame or Chassis Terminal Symbol The symbol in the figure above appears on the Model TA 7600 LN Tapered Amplifier Controller This symbol identifies the frame or chassis terminal 1 3 10 Waste Electrical and Electronic Equipment WEEE Figure 10 WEEE Directive Symbol This symbol on the product or on its packaging indicates that this product must not be disposed with regular waste Instead it is the user responsibility to dispose of waste equipment according to the local laws The separate collection and recycling of the waste equipment at the time of disposal will help to conserve natural resources and ensure that it is recycled in a manner that protects human health and the environment For information about where the user can drop off the waste equipment for recycling please contact your local New Focus representative 1 3 11 Control of Hazardous Substances RoHS Compliant Figure 11 RoHS Compliant Symbol This label indicates the products comply with the EU Directive 2002 95 EC that restricts the content of six hazardous chemicals 16 Safety Precautions 1 3 12 Laser Radiation Warning Label Figure 12 Laser Radiation Warning Label This label indicates the presence of visible and invisible laser radiation as well as the wavelength
11. range and maximum output power 1 3 13 Avoid Direct Eye Exposure Label Figure 13 Avoid direct eye exposure label This label indicates the presence of laser radiation Users are advised to avoid direct eye exposure 1 3 14 Laser Aperture Label Figure 14 Laser Aperture Label This label indicates the location of the laser aperture Safety Precautions 17 1 3 15 Eyewear Required Label N Eyewear O Required Figure 15 Eyewear Required Label This symbol indicates that the product users need to use appropriate protective eyewear at all times 1 4 Warnings and Cautions The following are definitions of the Warnings Cautions and Notes that are used throughout this manual to call your attention to important information regarding your safety the safety and preservation of your equipment or an important tip WARNING Situation has the potential to cause bodily harm or death CAUTION Situation has the potential to cause damage to property or equipment NOTE Additional information the user or operator should consider 1 4 1 General Warnings Observe these general warnings when operating or servicing this equipment e Heed all warnings on the unit and in the operating instructions e Do not use this equipment in or near water e This equipment is grounded through the grounding conductor of the power cord 18 Safety Precautions 1 4 2 1 4 3 Route power cords and other cables so that t
12. set query laser operating parameters Queries return the value of various Tapered Amplifier set points Sense Commands return the value of various laser operating conditions Sense Commands read actual voltages currents and temperatures the value returned is the same as that seen on the Tapered Amplifier front panel at the time the command is executed The next section has an index of all the possible computer control commands Then the pages that follow the index of commands give detailed information about each command including a description of the command and examples of how the command is used Index of Commands Standard Commands Syntax Description IDN Identification string query RCL Recall Tapered Amplifier settings RST Reset the Tapered Amplifier SAV Save Tapered Amplifier settings BEEP Set Tapered Amplifier beeper status BEEP Query Tapered Amplifier beeper status LOCKOUT Set Tapered Amplifier front panel state Computer Interfacing 49 LOCKOUT Query Tapered Amplifier front panel state ONDELAY Set amplifier output ON delay ONDELAY Query amplifier output ON delay Output Commands Syntax Description OUTPut STATe Set amplifier output state OUTPut STATe Query amplifier output state Sense Commands Syntax Description SENSe CURRent DIODe Sense diode current SENSe POWer DIODe Sense output power
13. shown in Figure 24 CE and RoHS Model labels Serial WEEE symbol Fuse Interlock label input RS 232 interface USB interface Lapara Chassis Amplifier o tid Max Control I O Br power Figure 25 Rear panel Label IEC 320 as it s referred to in text System Operation 43 4 4 1 USB Interface The TA 7600 LN is designed to communicate with standard USB host interfaces The connector on the rear panel is a standard USB B full size device 4 4 2 RS 232 Serial Interface The TA 7600 LN can also communicate via a standard RS 232 serial interface The connector on the rear panel is a standard female 9 pin Dsub Note that the built in serial port on a PC is a DTE device A straight through cable is used to connect a DTE device PC to a DCE device e g TA 7600 LN The TXD RXD and RTS CTS pins are not cross connected in this case hence the term straight through cable Simple Straight Through Cable 10 Ground 5 60 RX exe TO TX TX Mo 8 O7 O 40 RX o 2 O1 4 4 3 Chassis Ground This 4 mm banana jack is connected to chassis ground It is intended to be used as an additional earth ground connection for the Model TA 7600 LN s enclosure 4 4 4 AC Power Cord The Model TA 7600 LN will operate on either 50 or 60 Hz mains power The instrument has an auto ranging power supply and will operate with a nominal AC input voltage of 100 to 240 VAC The line cord supplied with each unit should be plugged only into
14. A prior to return of item Address Date Country Phone Number P O Number FAX Number Item s Being Returned Model Serial Description Reason for return of goods please list any specific problems 71 This page is intentionally left blank 8 Appendix A Error Messages 8 1 Introduction The errors generated by the Tapered Amplifier can be retrieved by pushing the 1 button on front panel of the Tapered Amplifier scrolling to Errors menu and pressing the Enter button These errors can also be retrieved remotely by issuing ERRSTR command through USB or RS 232 communication interfaces Some of these errors can be cleared by switching the laser Tapered Amplifier OFF and then back ON If the errors persist please contact New Focus for assistance The next section tabulates and includes a brief description of each error 8 2 Error Description A table listing all error codes is shown below The second column gives the error string assigned to the error while the third column gives a brief description of the error Error Error String Description Code 0 NO ERROR No error exists in the error buffer 116 SYNTAX ERROR This error is generated when the instrument receives a command that cannot be processed Some typical causes a Using ASCII characters outside of a string constant that are not defined by the command language syntax b Missing space between a se
15. CONtrol SYSTem LASer MODEL Description Syntax Remarks Response See Also Laser head model number query SYSTem LASer MODEL This command returns the model number of the laser head connected to the Tapered Amplifier Description Value String laser head model number SYSTem LASer SN SYSTem LASer SN Description Syntax Remarks Response See Also Laser head serial number query SYSTem LASer SN This command returns the serial number of the laser head connected to the Tapered Amplifier Description Value String laser head serial number SYSTem LASer MODEL SYSTem LASer REV Description Syntax Remarks Response Laser head revision number query SYSTem LASer REV This command returns the revision number of the laser head connected to the Tapered Amplifier Description Computer Interfacing 61 See Also Value String laser head revision number SYSTem LASer SN SYSTem LASer CALDATE Description Syntax Remarks Response See Also Laser head calibration date query SYSTem LASer CALDATE This command returns the calibration date of the laser head connected to the Tapered Amplifier Description Value String laser head calibration date SYSTem LASer SN SYSTem LASer WA VElength Description Syntax Remarks Response See Also Laser diode wavelength query SYSTem LASer WA VElength This query returns the laser diode wavelength Descr
16. Class 4 laser system Its output beam is by definition a safety and fire hazard Take precautions to prevent exposure to direct and reflected beams Diffuse as well as specular reflections can cause severe skin or eye damage 1 2 Precautions for the Safe Operation of Class 4 Lasers DANGER The infrared radiation that the TA 7600 emits is extremely dangerous to the eye Infrared radiation passes easily through the cornea which focuses it on the retina where it can cause instantaneous permanent damage WARNING AM Wear protective eyewear at all times Selection depends on the Eyewear O R wavelength and intensity of the radiation the conditions of use and equired the visual function required Protective eyewear vendors are listed in the Laser Focus World Lasers and Optronics and Photonics Spectra buyer s guides e Wear protective eyewear at all times Selection depends on the wavelength and intensity of the radiation the conditions of use and the visual function required Protective eyewear vendors are listed in 12 Safety Precautions 1 3 the Laser Focus World Lasers and Optronics and Photonics Spectra buyer s guides Consult the ANSI or ACGIH standards listed at the end of this section for guidance Maintain a high ambient light level in the laser operation area This keeps the eye s pupil constricted thus reducing the possibility of eye damage Avoid looking at the output beam even di
17. DE Remarks This query returns the tapered amplifier current setpoint Response Description Value Tapered amplifier current setpoint in milli Amperes mA See AlsoSOURce CURRent DIODe SOURce POWer DIODe Description Diode laser output power set Syntax SOURce POWer DIODe Value Remarks This command sets the Tapered Amplifier output power setpoint If no value is specified e The Tapered Amplifier returns NO PARAMETER SPECIFIED e No other action is taken If the value specified is less than 1 0 or greater than 99 0 e The Tapered Amplifier returns VALUE OUT OF RANGE e No other action is taken If the value is in range e The Tapered Amplifier power is changed to specified value e The Tapered Amplifier returns OK Argument Value Description Value MAX If the string MAX is specified as value the diode power setpoint is set to 99 MIN If the string MIN is specified as value the diode power setpoint is set to 1 Float Desired diode laser power in percentage of laser amplifier s output power rating See Also SOURce POWer DIODe SOURce POWer DIODe Description Diode laser output power setpoint query Syntax SOURce POWer DIODE Remarks This query returns the Tapered Amplifier output power setpoint Response Description 58 Computer Interfacing Value Tapered Amplifier power setpoint in percentage of laser amplifier s output power rating See Also SOURce POWer DIODe
18. Description Valuel Value2 Valuel is the minimum input power level in milli Watts mW Value2 is the maximum output power level in milli Watts mW See Also SOURce POWer DIODe SOURce CPower Computer Interfacing 63 This page has been intentionally left blank This page has been intentionally left blank 6 Tips and Techniques 6 1 Introduction This section explains operational details of the Model TA 7600 LN tapered amplifier controller and head Application examples are provided 6 2 Grounding a Laser Head The TA 7600 LN Tapered Amplifier outputs are isolated from earth chassis ground Isolating the laser head case avoids damaging the device from multiple ground loop potentials AC transients or static discharge Since test equipment probes signal sources and package mounts are often partially earth grounded it is often necessary to also bond the device case to earth ground It is strongly recommended that a single point ground scheme be established specifically at the binding post This will help minimize noise transients and ground loop hazards Be sure to include any signal generators in your ground circuit CAUTION Only one connection to ground is accepted Failure to do so may result in the unit malfunction and or damage Be careful when connecting other instruments to TA 7600 LN Tapered Amplifier as they may have their ground connected to the Earth Ground For example oscilloscopes have the p
19. Model TA 7600 Senes Tapered Amplifier Users Manual p New Focus A Newport Corporation Brand Preface EU Declaration of Conformity We declare that the accompanying product identified with the CE mark complies with requirements of the Electromagnetic Compatibility Directive 2004 108 EC and the Low Voltage Directive 2006 95 EC Model Numbers TA 76XX Series Year C mark affixed 2013 Type of Equipment Electrical equipment for measurement control and laboratory use in industrial locations Manufacturer Newport Corporation 1791 Deere Avenue Irvine CA 92606 Standards Applied Compliance was demonstrated to the following standards to the extent applicable BS EN61326 1 2013 Electrical equipment for measurement control and laboratory use EMC requirements for use in a controlled electromagnetic environment This equipment meets the CISPR 11 2009 A1 Class A Group 1 radiated and conducted emission limits BS EN 61010 1 2010 Safety requirements for electrical equipment for measurement control and laboratory use MEE Mark Carroll Sr Director Instruments Business Newport Corporation 1791 Deere Ave Irvine CA92606 USA Preface iii Warranty New Focus warrants that this product will be free from defects in material and workmanship and will comply with the New Focus published specifications at the time of sale for a period of one year from date of shipment If found to
20. a properly grounded receptacle to prevent electrical shock in the event of an internal short circuit to the metal cabinet The detachable line cord should be connected to the IEC320 connector on the power entry module 44 System Operation 4 4 5 Fuses The correct fuses must be installed into the fuse holder that is part of the AC power entry module Please check the fuse label on the rear panel before installing new fuses see Figure 25 WARNING To avoid electric shock the appropriate fuses for the AC input power voltage must be installed in the instrument Only qualified service personnel should replace fuses Failure to observe these precautions can result in fire severe injury or death 5 5 1 5 2 5 3 5 3 1 Computer Interfacing Introduction The Model TA 7600 LN Tapered Amplifier Controller has USB and RS 232 interfaces to receive commands from and send responses to a host PC The commands supported by the Tapered Amplifier Controller can be divided into two categories set commands that cause it to take a desired action and query commands that cause it to return a stored value The query commands are used to query the state of the controller and must end with a question mark Set commands on the other hand are used to configure setup the Tapered Amplifier for a desired mode of operation These commands take at least one parameter If the Tapered Amplifier Controller executes the command s
21. aired 20 Safety Precautions WARNING While the Model TA 7600 LN Tapered Amplifier Controller s front panel key switch turns power OFF to the internal electronics it should not be depended upon to fully disconnect the unit from MAINS power Disconnect the power cord to fully isolate the Model TA 7600 LN from MAINS power Do not position the TA 7600 LN Tapered Amplifier Controller so that it is difficult to disconnect the power cord WARNING Do not power up the Model TA 7600 LN without a Tapered Amplifier Head connected WARNING Do not attempt to power up the Tapered Amplifier if the cable between the Tapered Amplifier Controller and the Tapered Amplifier Head is damaged WARNING Use only New Focus Part Number 90035117 cable or New Focus approved alternative to connect the TA 7600 LN Tapered Amplifier Controller to a TA 76xx series Tapered Amplifier Head WARNING Do not disconnect the cable between the Model TA 7600 LN Tapered Amplifier Controller and the attached amplifier head while the Model TA 7600 LN Tapered Amplifier Controller is powered up WARNING Secure the connector screw locks at both ends of the cable between the Model TA 7600 LN and the attached amplifier head The Model TA 76xx Tapered Amplifier System is intended for use in an industriaV laboratory environment Use of this product in other environments such as residential may result in electromagnetic compatibility difficulties due to cond
22. arth grounded 3 prong receptacles only Failure to observe this precaution can result in severe injury WARNING The TA 7600 LN Tapered Amplifier Controller is supplied with a detachable power cord Do not replace this cord with an inadequately rated cord e Have a qualified electrician verify the wall socket that will be used is properly polarized and properly grounded e Provide adequate distance between the Models TA 7600 LN and the amplifier head and adjacent walls for ventilation purposes Do not let any other equipment blow hot air towards the devices Verify that correct rated fuses are installed according to the fuse marking on the rear panel The unit has temperature sensors If the unit overheats it will generate an error message and stop operation to protect itself until the user takes the necessary steps to lower the temperature 3 7 Controller Power Supplies AC power is supplied through the rear panel power entry module connector that provides in line transient protection and RF filtering The power entry module also contains the instrument s fuses The fuses are accessed by opening the power entry module using a flat bladed screwdriver The AC line cord must first be removed before the power entry module can be opened Verify that the correct value fuses are installed in the power entry module WARNING AN To avoid electric shock connect the instrument to properly earth grounded receptacles only Failure t
23. ation with virtually no maintenance except for ensuring that the unit is not damaged contaminated or used in an unsafe manner The TA 7600 LN tapered amplifier controller and head contain no user serviceable parts To obtain information regarding factory service contact New Focus or your New Focus representative Please have the following information available 1 Instrument model number on the rear panel 2 Instrument serial number on rear panel or bottom of enclosure 3 Description of the problem If the instrument is to be returned to New Focus you will be given a Return Number which you should reference in your shipping documents Please fill out a copy of the service form located on the following page and have the information ready when contacting Newport Corporation Return the completed service form with the instrument 7 4 Warranty New Focus a division of Newport Corp guarantees its lasers to be free of defects for one year from the date of shipment or for 3000 hours of operation whichever comes first This is in lieu of all other guarantees expressed or implied and does not cover incidental or consequential loss The laser head watranty is void if the inner laser cavity box is opened 70 Maintenance and Service 7 5 Service Form New Focus U S A Office 408 980 4300 FAX 408 919 6083 Name Return Authorization Please obtain RA prior to return of item Company Please obtain R
24. ations Environmental Specifications Voltage Requirements 100 240 VAC 50 60Hz Power Requirements MAX POWER 105 Watts Chassis Ground 4 mm banana jack Size H x W x D in mm 3 48 88 4 x 14 0 355 6 x 16 51 419 4 Storage Temperature Mainframe Weight lb kg 17 9 8 1 Operating Temperature Ee P 8 P lt 90 humidity non condensing 0 C to 50 C lt 90 humidity non condensing Relative Humidity Storage lt 90 humidity non condensing Altitude lt 2000 meters 6550 feet Installation Category I Pollution Degree 2 Use Location Indoor use only The Model TA 7600 LN Tapered Amplifier Controller and Tapered Amplifier Head were designed to operate in a controlled electromagnetic environment While they will not be damaged by operation in an industrial electromagnetic environment as defined in EN61326 1 2013 such operation may not yield optimal performance For this reason New Focus does not recommend operation of these devices in close proximity to mobile telephones hand held radio transmitters and similar devices 3 Getting Started 3 1 Unpacking and Handling It is recommended that the Model TA 7600 LN Tapered Amplifier Controller and the Tapered Amplifier Head be unpacked in a lab environment or work site Unpack the system carefully small parts are included with the instrument Inspect the box carefully for loose part
25. avelength fine tuning System Operation 37 4 2 The digital layer includes a Digital Signal Processor DSP and user interface circuitry There is a digital circuit in the amplifier head that contains information specific to each head such as the optimal temperature current settings and the laser head serial number The current driver is a low noise analog DC current supply which provides up to several A of current to the amplifier diode The AC ripple in the output is sub LA RMS The temperature driver controls the amplifier head s internal temperature by supplying current to thermoelectric Peltier elements in the amplifier head A DSP is used to perform PID feedback control for each element In this way the tapered amplifier gain element temperature and the surrounding environment are stabilized to within plus or minus 10 millikelvin The DSP based digital board controls all of the other modules runs the digital displays and provides USB interfacing capability It also communicates with the circuit board in the amplifier head to determine what kind of amplifier head it is WARNING Before powering up or operating the Model TA 7600 LN Tapered Amplifier Controller please read and understand all of Section 1 Using the Front Panel The front panel of the Model TA 7600 LN Tapered Amplifier Controller is designed for easy operation It has various distinct areas each with a specific set of related functions and cont
26. be consulted to determine the nature of a potential hazard and any actions that have to be taken A Figure2 Electrical Shock Symbol 1 3 2 Electric Shock The Electrical Shock Symbol in the figure above appears throughout this manual This symbol indicates a hazard arising from dangerous voltage Any mishandling could result in irreparable damage to the equipment and personal injury or death 1 3 3 European Union CE Mark CE Figure3 CE Mark The presence of the CE Mark on New Focus branded equipment means that this instrument has been designed tested and certified compliant to all applicable European Union CE regulations and recommendations 1 3 4 Alternating Voltage Symbol ow Figure 4 Alternating Voltage Symbol This international symbol implies an alternating voltage or current 14 Safety Precautions 1 3 5 On Figure5 On Symbol The symbol in the figure above represents a power switch position on the Model TA 7600 LN Tapered Amplifier Controller This symbol represents a Power On condition 1 3 6 Off O Figure6 Off Symbol The symbol in the figure above represents a power switch position on the Model TA 7600 LN Tapered Amplifier Controller This symbol represents a Power Off condition 1 3 7 Fuses Figure 7 Fuse Symbol The symbol in the figure above identifies the fuse location on the Model TA 7600 LN Tapered Amplifier Controller 1 3 8 USB Figure 8 USB Symbol
27. be defective during the warranty period the product will either be repaired or replaced at New Focus option To exercise this warranty write or call your local Newport office or representative or contact Newport headquarters in Irvine California You will be given prompt assistance and return instructions Send the product freight prepaid to the indicated service facility Repairs will be made and the instrument returned freight prepaid Repaired products are warranted for the remainder of the original warranty period or 90 days whichever occurs first Limitation of Warranty The above warranties do not apply to products which have been repaired or modified without Newport s written approval or products subjected to unusual physical thermal or electrical stress improper installation misuse abuse accident or negligence in use storage transportation or handling This warranty also does not apply to fuses batteries or damage from battery leakage THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE NEW FOCUS SHALL NOT BE LIABLE FOR ANY INDIRECT SPECIAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE PURCHASE OR USE OF ITS PRODUCTS First printing 2014 2014 by New Focus Santa Clara CA All rights reserved No part of this manual may be reproduced or copied without the prior written approval of New Focus This manual ha
28. cation or by developing software in the user s preferred programming language The software CD contains communication drivers and example programs in LabVIEW and C NET Computer Interfacing 47 5 6 5 7 5 7 1 RS 232 Communication The instrument is designed to communicate with a host PC via RS 232 communication interface The pin out of the 9 pin D sub connector located on the rear panel of the Tapered Amplifier is designed to interface directly with an IBM compatible PC using a straight through cable To communicate with the instrument the host PC s RS 232 settings must be configured as follows 8 data bits no parity checking 1 stop bit and no hardware handshake The Tapered Amplifier can support baud rates between 1200 and 57600 bps the default baud rate is 19200 bps Setting the Baud Rate for RS 232 1 Press the Menu button and scroll down to System Params menu Press Enter button to see this menu The first menu item is Baud Rate 2 Turn the right knob to select desired baud rate Turn the knob clockwise to increase the value counter clockwise to decrease the value Available baud rates are 1200 2400 4800 9600 19200 38400 and 57600 3 Press the Back button to exit the System Params menu Commands Summary Conventions There are two types of device commands commands that cause the instrument to take a desired action and queries that return a stored value or state of the instrument Queries must end
29. ceable parts inside the Model TA 7600 LN and the associated Tapered Amplifier Head Work performed by persons not authorized by New Focus will void the warranty For instructions on obtaining warranty repair or service please refer to Section 7 26 General Information 2 2 1 Key Product Features Flexible configurations e Standards models available at 767nm 780nm 795nm 852nm 915nm e Use your own seed laser or a New Focus ECDL for a complete MOPA system e Custom wavelengths and powers available Protections e Laser current limit and fault protection e Active seed power monitoring helps prevent self lasing that can damage the tapered amplifier chip Active temperature control closed loop Ability to turn off the output current if a fault is detected with the TEC e Over temperature protection TA 7600 LN Controller e Improved data presentation and system control via large display e Ergonomic adjustment knob e Integral LED pushbuttons e Autoranging power supply that can operate on 100 240 volt AC power Plug amp play Pre aligned FC APC fiber input e USB and RS232 remote interface e Amplifier head recognition e Intuitive graphical user interface provided 2 2 2 Instrument Features Intuitive Controls and VFD Display Improved data presentation and system control are achieved using a large wide viewing angle 2 row by 20 character vacuum florescent display VFD ergonomic adjustment knob and thought
30. e Ne GE Ee GE ais 14 Figure 8 USB Symbols ESE eae eaves halls Gk Rs ache 14 Figure 9 Frame or Chassis Terminal Symbol iese sesse ees se de ee 15 Figure 10 WEEE Directive Symbol iie sesse ee esse ee ees es ee ee ee ee gee ee eed 15 Figure 11 RoHS Compliant Symbol sesse ees sesde es ede ee ee ee 15 Figure 12 Laser Radiation Warning Label iese ees see ee ee 16 Figure 13 Avoid direct eye exposure label esse esse ee ee 16 Figure 14 Laser Aperture labels Pe Es Se EE ee ale Di gegee Ese EES 16 Figure 15 Eyewear Required Label steeds se ek aun sek nd de Ge 17 Figure 16 Rear Panel Labels and WarningS ee esse ee esse ee ee 22 Figure 17 TA 7600 Amplifier Head labels and warnings eee 23 Figure 18 Tapered Amplifier Block Diagram 00 sees see se Ke ee 36 Figure 19 Front Panel ayouts si ee De N de 38 Figure 20 A sample title SCre n susse se See ee ee N ee se eed Deeg ee eg 40 Figure 21 A sample Firmware Instrument Version Screen eee 40 Figure 22 A sample Amplifier Head Information screen eee 4 Figure 23 A sample Main Screen siese ESE Gee ae ge Re Re De De Ee 4 Figure 24 A sample Information SCreen sees see es ee ee 42 Figure 25 Rear panel Label IEC 320 as it s referred to in teXt i e 42 List of Tables Preface This page is intentionally left blank 1 Safety Precautions 1 1 Classification and Limitations DANGER The TA 7600 Tapered Amplifier is a
31. e order of minutes then press the Power Lock button The power level can be adjusted in Constant Power mode by_turning the knob Allow the system time on the order of minutes to stabilize after changing the Current set point or Power set point in either mode Note that Constant Power mode operation is limited to 1 99 of the total tapered amplifier current range Turning the Amplifier OFF To minimize the risk of power surges damaging the amplifier diode and to preserve the lifetime of the diode push the CURRENT ON OFF button to turn OFF the amplifier when it is not in use the LED on the button will turn off and before shutting down the system Turn the front panel keyswitch to O position to shut down the entire system Software Installation For instructions on how to install the software provided with the Tapered Amplifier please refer to TLB 7600 ReadMe pdf file You need to have a PDF reader to view its contents 4 System Operation 4 1 4 1 1 Description of Tapered Amplifier System Tapered Amplifier Head The New Focus TA 7600 is designed to amplify coherent laser radiation in the near infrared spectrum Fiber coupled seed radiation is amplified by up to 20 dB 100 times while substantially retaining the spectral and noise characteristics of the seed The TA 76xx can provide up to 2 W of coherent radiation in the region of 755 920 nm A key feature of the TA 7600 tapered amplifier head is the FC APC optical
32. eded safe levels Please allow the unit to cool down before turning the output ON again 919 LASER DISCONNECTED This error is generated when user tries to turn the Tapered Amplifier Driver subsystem output ON without having a tapered amplifier head connected to the controller 920 LASER EEPROM ERROR This error is generated when user tries to connect an amplifier head to the controller using an incompatible cable 921 LD HEAD ACCESS OFF This error is generated when user tries to modify select tapered amplifier head parameters New Focus Worldwide Headquarters 3635 Peterson Way Santa Clara CA 95054 In U S 877 835 9620 Tel 408 980 4300 Fax 408 919 6083 Internet sales newfocus com Vv New Focus A Newport Corporation Brand Visit New Focus Online at Newport Corporation Irvine California Evry and Beaune La Rolande France have all been certified compliant with ISO 9001 by the British Standards Institution Mountain View California is DNV certified Printed in U S A
33. ediately and display an error message This protection feature avoids transients from being sent to the tapered amplifier To return to normal operation the user needs to reduce the laser current level below the limit and then turn the current ON from the CURRENT ON OFF button 4 3 Menu Section In addition to showing status parameters on the display the Menu section of the front panel enables the User to view and change settings 4 3 1 Control Knob The TA 7600 LN control knob can be used to change values of the parameter shown in the area of the display directly above the knob The control knob can also be used to set the value of the Current or Power depending whether in constant current or Power Lock mode respectively The knob has an acceleration algorithm that causes the rate of change of the value to increase as the knob is turned faster Turning slowly allows for fine adjustment at the smallest displayed digit 40 System Operation 4 3 2 Display Elements The Model TA 7600 LN Tapered Amplifier Controller uses a character display to depict information about the current state of the system The display screens shown by the instrument can be classified as follows title screen laser head information screen main Setup screen parameter setup screen and error message screen 4 3 3 Title Screen The title screen is displayed for a few seconds every time the instrument is powered ON A sample title screen is shown in Figure 20
34. eeeeeeeee 18 1 5 Location of Labels and Warnings eeeeeseeeeeeeeeeeeeeenaneees 22 1 5 1 TA 7600 LN Rear Panel ee de AA 22 1 5 2 EG sd CAC EE EE E GE IE Ef 23 2 General Information 25 2 1 Theory of Tapered Amplifiers sesse Re EIERS SG SG 25 2 2 Getting to Know Your Tapered Amplifier System 000 25 2 2 1 Key Product Features kossies eds ee se Rees geeis 26 2 2 2 Instrument Peatures 34s aides sani Anan meas 26 2 3 Controller Input POWER Bi ein oe eS 27 Preface vii ZA Specifications RE RS NEE land ach Ed oe ed EG 2 4 1 Tapered Amplie id Aste N EN ee 2 4 2 System SpeeilieAHONS iS N ila ae 2 4 3 General Specifications ss Vee Res We Essie 3 Getting Started 3 1 Unpacking and Handling s iss ie ald keane 3 2 Inspection for Damage ss bes Si bg Ek be re RA Parts St EER Ee ie ed EE e 3 4 Choosing and Preparing a Suitable Work Surface 3 5 Optical Requirements ss ee atacand EG Re cate 3 6 Electrical Requirements rs Re Ie oe Re ES ER N ve 3 7 Controller Power Supplies iss ee ee 3 8 Quek SAMEL AR Ee ee aes 3 8 1 Connecting the Amplifier Components 3 8 2 Grounding and Powering the Laser System 3 8 3 Seeding the Amplifier cc eceesssseeeereeeeeees 3 8 4 Turning the Amplifier ON sees see ee ee 3 8 5 Turning the Amplifier OFF esse ee ee esse ee 3 8 6 Software InstallatioM sesse ss ss de Se ie 4 System Operation 4 1 Description o
35. f Tapered Amplifier System 4 1 1 Tapered Amplifier Head esse ese ese sees es see 4 1 2 Tapered Amplifier Controller eee 4 2 Using the Front Patel wis csasincandi es Geseende De n ee Ese 4 2 1 Setting the Tapered Amplifier Gain Current 4 2 2 Tapered Amplifier Current Limit Protection 4 3 Menu Section ie os ios Bias ss EE es SR essa es Sei Se 4 3 1 Control Knob 0 0 a ee ee RE EE 4 3 2 Display Elemente ees REG ee ese oe ee 4333 THUG Nerens A A le Ee AG 4 3 4 Instrument Firmware Version Screen 4 3 5 Amplifier Head Startup Information Screen 43 6 Main Screen sesse see ee Ge eed RE 4 3 7 Information SCrEEn esse ee ee RE 44 ie EE EE OR iren 44 1 USB Wniterface sce ct ves i EE Gee Ee ERGE Ge ede 44 2 RS 232 Serial Interface ees ees ee ee ee 4 4 3 Chassis Ground sesse sees ee ee 4 4 4 AC Power Cord ss sesse ee eed EE E AAD BUSES ME EE EE OE N 5 Computer Interfacing viii Preface Del oe ese ER N 45 5 2 GU APppliEAUON Ee oid ood ee Shs Wied hee ene 45 5 3 Computer Interface TerminolOgY i e ee ee 45 5 3 1 lt gt Delimiting PunetuatOn sesse se ee Ne 45 5 3 2 CRS Carriage Return lt oie pa ee cecdicacdsehs Gaston eects DE Ge Ee 46 33 9 MPS Lime POCO A se Ee Ge ie de De wasn sacked anton 46 Sad C SOMICOIONS GER ERG VER Ve EG ER ee ge sb Ee de De 46 5 3 5 Command Termination fesecccesctecistecosastatessacetecondetekxs 46
36. ffuse reflections are hazardous Avoid wearing jewelry or other objects that may reflect or scatter the beam while using the laser Use an infrared detector or energy detector IR viewer to verify that the laser beam is off before working in front of the laser Operate the laser at the lowest beam intensity possible given the requirements of the application Expand the beam whenever possible to reduce beam power density Avoid blocking the output beam or its reflection with any part of your body Establish a controlled access area for laser operation Limit access to those trained in the principles of laser safety Post prominent warning signs near the laser operation area Set up the laser so the beam is either above or below eye level Provide enclosures for beam paths whenever possible Set up shields to prevent specular reflections Set up an energy absorbing target to capture the laser beam preventing unnecessary reflections or scattering Definitions and Symbols The following terms and symbols are used in this documentation for the Model TA 7600 LN and on the attached TA 76xx Tapered Amplifier Head where safety related issues occur Safety Precautions 13 1 3 1 General Warning or Caution AN Figure 1 General Warning or Caution Symbol The Exclamation Symbol in the figure above appears on the product and in Warning and Caution tables throughout this document This symbol designates that documentation needs to
37. fully arranged pushbuttons some with integral LEDs General Information 2 3 2 4 2 4 1 2 4 2 Controller Input Power The Model TA 7600 LN Controller has an autoranging power supply that can operate on 100 240 volt AC power Specifications Tapered Amplifier Model Number arene un Maximum Power mW Coverage Range nm TA 76XX 350 755 1 W at maximum free space output TA 7612 755 7715 1W at 765 nm free space output TA 7612 P 755 7715 0 5 W at 765 nm fiber coupled output TA 7613 7715 785 1W at 780 nm free space output TA 7613 P 7715 785 0 5 W at 780 nm fiber coupled output TA 7613 H 779 790 2 W at 780 nm free space output TA 7614 P 787 805 0 5 W at 795 nm fiber coupled output TA 7614 H 787 805 1 8 W at 795 nm free space output TA 7616 825 855 1 W at 850 nm free space output TA 7616 P 825 855 0 5 W at 850 nm fiber coupled output TA 7618 910 920 1 W at 915 nm free space output TA 76XX X 920 5000 5 W at maximum free space output Typical Beam Divergence lt 2 5 mrad Maximum Beam Spot Size at 60 cm 2x4 mm from laser aperture System Specifications AMPLIFIER CHIP CONTROLLER Current Control Constant Current Mode Control Range Compliance Voltage Laser Driver Output Power Resolution Resolution Display OtosA 100 uA 28 General Information TEC Driver TEE Compliance Voltage 0 to 4 5V TEC Driver Output Power max 19 35W 2 4 3 General Specific
38. he desired operating parameters with the AC Power on but while the amplifier head is not generating light System Operation 39 4 2 1 Setting the Tapered Amplifier Gain Current To set the desired Current level turn the knob control below the display screen The system is set so that the maximum drive current is below the damage threshold and self lasing threshold It is not possible for the end user to increase the drive current beyond the factory set limit Following initial 30 minute warm up allow additional warm up time order of minutes for the system to stabilize after changing the Current or Power set point 4 2 2 Tapered Amplifier Current Limit Protection One of the parameters stored in the amplifier head s internal memory is the Tapered Amplifier Maximum Current Limit Normal operation occurs only when the tapered amplifier current set point does not exceed the maximum limit To protect the tapered amplifier from being inadvertently driven over the limit TA 7600 LN employs two over the limit conditions SOFT LIMIT and HARD LIMIT If the current limit is exceeded by more than 2 mA the system enters the SOFT LIMIT condition in which the set point is limited as set by the limit level When the user decreases the laser current level below the limit the system returns to normal operation If the current limit is exceeded by more than 7 mA the system enters the HARD LIMIT condition in which the unit will shut the laser imm
39. hey are not likely to be damaged Disconnect power before cleaning the equipment Do not use liquid or aerosol cleaners use only a damp lint free cloth Lockout all electrical power sources before servicing the equipment To avoid fire hazard use only the specified fuse s with the correct type number voltage and current ratings as referenced in the appropriate locations in the service instructions or on the equipment Only qualified service personnel should replace fuses To avoid explosion do not operate this equipment in an explosive atmosphere Qualified service personnel should perform safety checks after any service General Cautions Observe these cautions when operating this equipment If this equipment is used in a manner not specified in this manual the protection provided by this equipment may be impaired To prevent damage to equipment when replacing fuses locate and correct the problem that caused the fuse to blow before re applying power Do not block ventilation openings Do not position this product in such a manner that would make it difficult to disconnect the power cord Position the equipment so that access to the mains disconnect On Off switch is readily available Use only the specified replacement parts Follow precautions for static sensitive devices when handling this equipment This product should only be powered as described in the manual There are no user serviceable parts inside the M
40. his command sets the Tapered Amplifier mode of operation Argument Value Description Value 0 Sets mode to constant current 56 Computer Interfacing 1 Sets mode to constant power See Also SOURce CPower SOURce CPower Description Queries mode of operation Syntax SOURce CPower Value Remarks This query returns the tapered amplifier mode of operation as constant current or constant power Description Value Description Value 0 constant current 1 constant power See Also SOURce CPower SOURce CURRent DIODe Description Syntax Remarks Amplifier current set SOURce CURRent DIODe Value This command sets the Tapered Amplifier current setpoint If no value is specified e The Tapered Amplifier returns NO PARAMETER SPECIFIED e No other action is taken If the value specified is greater than the diode current rating e The Tapered Amplifier returns VALUE OUT OF RANGE e No other action is taken If the value is in range e The Tapered Amplifier current is changed to specified value e The Tapered Amplifier returns OK Argument Value Description Value MAX If the string MAX is specified as value the diode current setpoint is set to the diode s current rating Float Desired tapered amplifier current in milli Amperes mA See AlsoSOURce CURRent DIODe SOURce CURRent DIODe Description Tapered amplifier current setpoint query Computer Interfacing 57 Syntax SOURce CURRent DIO
41. ht corner of the controller front panel The knob is used to scroll down the Information list The values reported for S N Date of manufacture ON Time and Tot Time refer to the tapered amplifier head that is connected to the controller and cannot be changed by the user ON Time is the duration that the TA current has been on and resets when the current is turned off Tot Time is the total number of hours the current has been on since the manufacture date The user is allowed to enable or disable the front panel knob a useful feature to prevent unintentional adjustment of the TA current To disable the knob scroll down the menu until the diamond is located next to Knob Enable then press the 1 button The screen will return to Main Screen and Knob Disabled will appear on the Main Screen to indicated the knob is disabled In order to enable the knob press the 1 button scroll down to Knob Enable and then press the 1 button Powering down the controller will also reset the Knob Enable to ON The Information screen can be excited by pressing the 1 button Avoid changing the Knob Enable setting by ensuring the diamond is not next to Knob Enable when exiting the Information Screen 42 System Operation Tot Time 0035 0hr Knob Enable ON Figure 24 A sample Information Screen 4 4 Rear Panel The Model TA 7600 LN rear panel has various dedicated input and output connectors as well as important labeling as
42. input fiber connection which is standard with all New Focus tapered amplifiers This allows the seed laser to be coupled into an internal fiber that has been carefully prealigned to the tapered amplifier diode This prealigned internal fiber ensures reliable and trouble free user alignment The amplified laser output can be fiber coupled or free space A 35 dB isolator at the output comes standard with every amplifier Thermal isolation of the laser head is achieved by enclosing the tapered amplifier diode block with thermally insulating foam In addition the base of the tapered amplifier housing acts as a heat sink An on board temperature sensor is used to monitor the diode temperature and provides the input to the temperature control closed loop A Peltier type thermoelectric cooler TEC is used maintain a constant tapered amplifier temperature There are two photodiodes in the tapered amplifier head that monitors input seed power and output amplified power Beamsplitters are used to pick off a small percentage of the input and output beams and direct them to the photodiodes The measured current of these photodiodes are calibrated at the factory The purpose of the input photodiode is to ensure sufficient seed power and is a safety feature of the TA 7600 system If the seed power is less than 10 mW the user will not be able to turn on the tapered amplifier current preventing damage as well as self lasing of the amplifier The output photodiode
43. iption Value Laser diode wavelength in nanometers nm SYSTem LASer MODEL SYSTem LASer CONDition Description Syntax Remarks Response Laser head condition query SYSTem LASer CONDition This command returns the state of the laser head connected to the Tapered Amplifier Description Value Integer A 16 bit decimal value representing the state of the laser head connected to the Tapered Amplifier Bit Value Description 0 0 Soft limit condition not activated 1 Output current is soft limited 1 Reserved 2 Reserved 3 Reserved 4 0 Rear panel interlock is grounded 1 Rear panel interlock is floating 62 Computer Interfacing 5 0 Hard limit condition not activated 1 Output current turned OFF due to hard limit 6 Reserved 7 Reserved 8 Reserved 9 0 Tapered Amplifier temperature is normal Output current turned OFF due to high Tapered Amplifier temperature 10 0 Output current is turned OFF 1 Output current is turned ON Il 0 Output current ondelay expired 1 Output current ondelay not expired 12 Reserved 13 0 Amplifier head disconnected 1 Amplifier head connected 14 Reserved 15 Reserved SYSTem LASer POWer Description Laser diode input and output power threshold query Syntax SYSTem LASer POWer Remarks This query returns the minimum input and maximum output power levels of the Tapered Amplifier Response
44. lated Materials These restrictions shall not apply to information 1 generally known to the public or obtainable from public sources 2 readily apparent from the keyboard operations visual display or output reports of the Programs 3 previously in the possession of Customer or subsequently developed or acquired without reliance on the New Focus Programs or 4 approved by New Focus for release without restriction Trademarks The New Focus logo and name are registered trademarks of Newport Corporation in Mexico Israel Singapore European Union Taiwan Hong Kong China Japan Korea Canada Australia and the United States Service Information This section contains information regarding factory service for the source The user should not attempt any maintenance or service of the system or optional equipment beyond the procedures outlined in this manual Any problem that cannot be resolved should be referred to New Focus Preface V Technical Support Contacts North America Europe New Focus Newport MICRO CONTROLE S A 3635 Peterson Way Santa Clara CA 95054 Zone Industrielle Telephone 866 683 6287 45340 Beaune la Rolande FRANCE Telephone 408 919 1500 Telephone 33 02 38 40 51 56 Asia Newport Opto Electronics Technologies E LYE REB 2535 BIER IE CAML HS2 200131 253 Aidu Road Bld 3 Flr 3 Sec C Shanghai 200131 China Telephone 86 21 5046 2300 Fax 86 21 5046 2323
45. neeeeeeeeeeeeeeenaaees ii Watra EE n ES e EE iii Technical Support Contacts s 925scsiacccevesediesseascanecessatnsadesndbeaasvedessscynanses v Table OF Contents srecen a a a Ge N oe vi List Of FiSures OE sei es i mada san ATE E RE ix Eist Of Table EA RE aeei RE EN ee EE ix 1 Safety Precautions 11 1 1 Classification and Limitations asse esis snes See en RS eg 11 1 2 Precautions for the Safe Operation of Class 4 Lasers 11 1 3 Definitions and S ymbols es EE De es eae de se ge Eg 12 1 3 1 General Warning or Caution sesse ee ee 13 13 2 Electric SHOCK ss SEER eena Ge a teats 13 1 3 3 European Union CE Mark iss sesse see ees esse ee see ee 13 1 3 4 Alternating Voltage Symbol iss sesse ee Ge ee 13 OOR RE ES IE EE AG DE NE ee 14 13 6 ei s a A A R 14 Lt ABUSES se ee aaa aE ee Ge Eg 14 138o ES EE EER EE SU ELE OE EED 14 13 9 Frame Chassis SE EE Ee es 15 1 3 10 Waste Electrical and Electronic Equipment WEEE 15 1 3 11 Control of Hazardous Substances cc sesse esse ee de 15 1 3 12 Laser Radiation Warning Label sesse sees ee 16 1 3 13 Avoid Direct Eye Exposure Label sesse sesse see ee ees 16 1 3 14 Laser Aperture Label sasies besks vele Ge De Rg Vee se 16 1 3 15 Eyewear Required Labels 53 eh NE Ee De Eg 17 1 4 Warnings and Cautions tx ss ER RS ee RE Se Ee Re ge 17 1 4 1 General WW ADRES EE GE IG GE de 17 1 4 2 General C tions wine ee ee take 18 1 4 3 Summary of Warnings and Cautions 0 0 0 0
46. nse See Also Actual laser diode output power query SENSe POWer DIODe This command returns the magnitude of actual tapered amplifier diode output power Description Value Actual tapered amplifier diode output power in milli Watts mW SOURce POWer DIODE SOURce POWer DIODE SENSe POWer INPUT Description Syntax Remarks Response See Also Actual laser diode input power query SENSe POWer INPUT This command returns the magnitude of actual tapered amplifier diode input power Description Value Actual tapered amplifier diode input power in milli Watts mW None SENSe TEMPerature TEC Description Syntax Remarks Response See Also Actual tapered amplifier diode temperature query SENSe TEMPerature TEC This command returns the magnitude of actual tapered amplifier diode temperature Note that the diode temperature is actively controlled If the room temperature ever gets so high that the coolers have insufficient capacity to reduce the temperature the control loop can become unstable and destroy the cooling elements To prevent damage the amplifier is automatically shut down if the amplifier diode temperature exceeds safe limits Description Value Actual tapered amplifier diode temperature in degC C SOURce TEMPerature TEC SOURce TEMPerature TEC SOURce CPower Description Syntax Remarks Sets mode of operation to constant current or constant power SOURce CPower Value T
47. o observe these precautions can result in fire severe injury or death Getting Started WARNING To avoid electric shock the appropriate fuses for the AC input power voltage must be installed in the instrument Only qualified service personnel should replace fuses Failure to observe these precautions can result in fire severe injury or death 3 8 Quick Start This section outlines the basic steps needed to start using your Tapered Amplifier including a brief setup and getting started guide It assumes that you have read the earlier sections regarding safety and AC input power setting For more detailed information on how to operate the instrument refer to Chapter 4 System Operation WARNING The safety of any system incorporating the equipment is the responsibility of the assembler of the system 3 8 1 Connecting the Amplifier Components Mount the amplifier head The amplifier head is shipped with a mounting bracket already attached This bracket also serves as a heatsink to avoid overheating the amplifier head Mount the amplifier head bracket in a stable position with the output aperture pointing towards an appropriate beam block Output beam height is two inches for the free space models Position the controller Position the controller within a cable length of the amplifier head about five feet The controller keyswitch should be off fully counter clockwise Be careful position the controlle
48. odel TA 7600 LN Tapered Amplifier Adhere to good laser safety practices when using this equipment Summary of Warnings and Cautions The following general warning and cautions are applicable to this instrument Safety Precautions 19 WARNING Before operating the Model TA 7600 LN Tapered Amplifier Controller please read and understand all of Section 1 WARNING Do not attempt to operate this equipment if there is evidence of shipping damage or you suspect the unit is damaged Damaged equipment may present additional hazards to you Contact New Focus technical support for advice before attempting to plug in and operate damaged equipment WARNING To avoid electric shock connect the instrument to properly earth grounded 3 prong receptacles only Failure to observe this precaution can result in severe injury WARNING Before cleaning the enclosure of the Model TA 7600 LN Tapered Amplifier Controller or the enclosure of any attached Tapered Amplifier Head the AC power cord must be disconnected from the wall socket CAUTION There are no user serviceable parts inside the Model TA 7600 LN and the associated Tapered Amplifier Head Work performed by persons not authorized by New Focus will void the warranty For instructions on obtaining warranty repair or service please refer to Section 7 WARNING If this equipment is used in a manner not specified in this manual the protection provided by this equipment may be imp
49. panel lockout state query Syntax LOCKOUT Remarks This query returns the instrument s front panel lockout state Response Description Value Front panel lockout state See Also LOCKOUT Computer Interfacing 53 ONDELAY Description Amplifier turn on delay command Syntax ONDELAY time Remarks This command controls the amplifier turn on delay This is the amount of time between the moment the amplifier on command is received and the moment the output is actually energized This setting is also used when an amplifier is commanded to turn on by pushing the CURRENT ON OFF button on front panel of instrument when it is in local control mode If no value is specified e The Tapered Amplifier returns NO PARAMETER SPECIFIED e No other action is taken If the value specified is less than 6000 or greater than 60000 e The Tapered Amplifier returns VALUE OUT OF RANGE e No other action is taken If the value is in range e The Tapered Amplifier turn on delay is changed to desired value e The Tapered Amplifier returns OK Argument Value Description Time Integer Time in milliseconds Valid values are between 6000 and 60000 See Also ONDELAY ONDELAY Description Laser turn on delay query Syntax ONDELAY Remarks This command returns the laser turn on delay time Response Description Value Time in milliseconds See Also ONDELAY OUTPut STATe Description Syntax Laser output enable command OUTPut STATe State
50. provides feedback for Constant Power mode System Operation 4 1 2 Tapered Amplifier Controller The tapered amplifier is controlled using the TA 7600 LN Tapered Amplifier Controller To ensure best performance each tapered amplifier head is calibrated with its corresponding controller The control unit works in both manual and remotely programmed modes and is compatible with USB and RS232 interfaces The TA 7600 LN s front panel multi line display shows important operating parameters including amplifier current and input and output power The job of the Tapered Amplifier Controller is to provide a stable low noise power source for the diode amplifier set the temperature in the amplifier head and provide readouts of all relevant amplifier parameters Conceptually the circuitry inside the Tapered Amplifier Controller is built in two layers analog and digital The analog layer incorporates low noise design for temperature and current control The digital layer includes all the readouts and circuits to set various operating point parameters This layer acts as an interface between the user or the user s computer and the analog layer User Inputs Local Control Panel LEDs EE VV Laser Radiation Out Microprocessor Figure 18 Tapered Amplifier Block Diagram The analog layer consists of four modules current control temperature control and piezoelectric transducer PZT driver which controls w
51. r in such a way that it will be easy to access the on off switch on the rear of the device as well as the key switch on the front Also position the controller in such a way that it is easy to remove the head plug cable Connect the Model TA 7600 LN Tapered Amplifier Controller to the Tapered Amplifier Head using the NPI101209 cable Secure the screw locks on the connectors at both ends of the cable Getting Started 33 WARNING Use only New Focus Model Number NPI101209 cable or New Focus approved alternative to connect the TA 7600 LN Tapered Amplifier Controller to a TA 76xx Series Amplifier Head WARNING Do not disconnect the cable between the Model TA 7600 LN Tapered Amplifier Controller and the Amplifier Head while the Model TA 7600 LN Tapered Amplifier Controller is powered up WARNING Secure the connector screwlocks at both ends of the cable between the Model TA 7600 LN and the Tapered Amplifier Head 3 8 2 Grounding and Powering the Laser System Verify that the proper fuses are installed See Section 3 7 above for details Connect the binding post on the rear of the chassis to earth ground While the protective ground wire within the MAINS power cord will provide adequate safety protection when connected to a properly earth grounded receptacle the system noise performance may be improved if this additional connection is made to the rear of the chassis WARNING To avoid electric shock connect the instrument
52. rks This query will cause the instrument to return an identification string Tapered Amplifier Model Firmware Firmware Name Version Date aa N on N D New_Focus XXXX vYYY mm dd yy SNZZZZ RCL Description Recall command Syntax RCL Bin Argument Value Description Bin 0 Restores factory default settings 1 tos Restores settings saved in specified bin Remarks This command restores the instrument to the setup states saved in instrument s non volatile flash memory The parameters that can be restored are 1 Beeper enable state 2 Dial rotary knob lockout state 3 Amplifier output on delay duration 4 RS 232 baud rate 5 Hardware configuration register setting 6 Diode current setpoint 7 Diode temperature setpoint See Also RST SAV RST Description Reset command Syntax RST Remarks This command performs a soft reset of the instrument See Also RCL SAV Description Save command Computer Interfacing 51 Syntax SAV Bin Argument Value Description Bin 2to5 Saves current settings to specified bin Remarks This command stores the current state of the instrument in non volatile flash memory This state is then recalled using the RCL command See description of RCL command for a list of values saved recalled by the instrument See Also RCL BEEP Description Beep command Syntax BEEP Value Remarks This command controls the instrument s beeper The beeper is used to signal error or warning condi
53. robe ground connected to Earth Ground If you have additional questions about your earth grounding method contact a New Focus applications engineer Tips and Techniques 67 This page is intentionally left blank 7 Maintenance and Service WARNING Work performed by persons not authorized by Newport Corporation will void the warranty 7 1 Enclosure Cleaning WARNING Before cleaning the enclosure of the Model TA 7600 LN Tapered Amplifier Tapered Amplifier the AC power cord must be disconnected from the wall socket The source enclosure should only be cleaned with a mild soapy water solution applied to a damp lint free cloth Do not use an acetone or alcohol solution this will damage the finish of the enclosure 7 2 Technical Support Information and advice about the operation of any New Focus product is available from our technical support engineers For quickest response ask for New Focus Technical Support and know the model and serial number for your product Hours 8 00 5 00 PST Monday through Friday excluding holidays Toll Free 1 866 NUFOCUS 1 866 683 6287 from the USA amp Canada only Phone 408 980 4300 Support is also available by fax and email Fax 408 919 6083 Email techsupport newfocus com We typically respond to faxes and email within one business day 69 7 3 Obtaining Service The Vortex Plus Tunable Laser System has been designed to provide years of trouble free oper
54. rol knobs as shown in Figure 19 below 38 System Operation Tapered Amplifier Controller Figure 19 Front Panel Layout Make sure the Tapered Amplifier Controller is plugged into a 3 pronged receptacle and your amplifier head cable is plugged into the both the back of the Tapered Amplifier Controller and the Tapered Amplifier Head Connect the output of the Tapered Amplifier Head to a safely terminated fiber optic cable Turn on the AC power using the front panel keyswitch On startup the amplifier head serial numbers optimum diode parameter settings and other pertinent operating information stored in an EEPROM in the amplifier head are uploaded to the Tapered Amplifier Controller The alphanumeric display will show the model number and the Tapered Amplifier Controller software revision number After a few seconds the display will become active About 30 minutes of warm up time is recommended for best performance Allow further warm up time on the order of minutes after setting or changing the current or power The keyswitch is the ON OFF switch for the whole system including both the controller and the amplifier head The CURRENT ON OFF button controls the laser output from the amplifier head When you push the CURRENT ON OFF button it flashes for a 6 second safety delay default value and then lights up to indicate that current is flowing through the diode in the amplifier head unit This allows you to set up all t
55. s Save the packaging material in case you need to ship your equipment in the future 3 2 Inspection for Damage The Model TA 7600 LN Tapered Amplifier Controller and the associated amplifier head are carefully packaged at the factory to minimize the possibility of damage during shipping Inspect the box for external signs of damage or improper handling Inspect the contents for damage If there is visible damage to the instrument upon receipt inform the shipping company and New Focus immediately Carefully open the box and save the shipping material for later use WARNING Do not attempt to operate this equipment if there is evidence of shipping damage or you suspect the unit is damaged Damaged equipment may present additional hazards to you Contact New Focus technical support for advice before attempting to plug in and operate damaged equipment CAUTION The user is advised to save the packaging material in case the unit has to be shipped to a different location The packaging material is specially designed to protect the unit during shipping 30 Getting Started 3 3 Parts List The following is a list of parts included with the Model TA 7600 System 1 TA 7600 LN Tapered Amplifier Controller and its accessory items 2 90035117 Cable 3 TA 76xx Tapered Amplifier Head The following is a list of parts included with the Model TA 7600 LN Tapered Amplifier Controller 1 USB Flash drive with Software Drivers and Utilities User
56. s been provided for information only and product specifications are subject to change without notice Any change will be reflected in future printings New Focus 3635 Peterson Way Santa Clara CA 95054 USA Part No 90065406 Rev A Preface Confidentiality amp Proprietary Rights Reservation of Title The New Focus programs and all materials furnished or produced in connection with them Related Materials contain trade secrets of New Focus and are for use only in the manner expressly permitted New Focus claims and reserves all rights and benefits afforded under law in the Programs provided by New Focus New Focus shall retain full ownership of Intellectual Property Rights in and to all development process align or assembly technologies developed and other derivative work that may be developed by New Focus Customer shall not challenge or cause any third party to challenge the rights of New Focus Preservation of Secrecy and Confidentiality and Restrictions to Access Customer shall protect the New Focus Programs and Related Materials as trade secrets of New Focus and shall devote its best efforts to ensure that all its personnel protect the New Focus Programs as trade secrets of New Focus Customer shall not at any time disclose New Focus s trade secrets to any other person firm organization or employee that does not need consistent with Customer s right of use hereunder to obtain access to the New Focus Programs and Re
57. t command and parameter c Missing character in case of query 126 WRONG NUM OF This error is generated when the instrument is unable to PARAMS process a command due to a mismatch between the number of parameters received and the number of parameters required for the command 201 VALUE OUT OF This error is generated when the instrument is unable to RANGE process a command because the parameter value received is out of range of the acceptable values for the command 73 407 TEC TEMP LIMIT The temperature control subsystem output has been turned OFF because the TEC temperature has exceeded safe levels Please allow the laser head to cool down before turning the laser power ON 424 TEC OVER TEMP The temperature control subsystem output has been turned OFF because the internal heatsink temperature has exceeded safe levels Please allow the unit to cool down and reset the Tapered Amplifier by turning it OFF and back ON 501 LDD INTERLOCK FLT The Tapered Amplifier Driver subsystem output has been turned OFF because of remote interlock BNC connector on rear panel assertion 502 LDD CURRENT LIMIT The Tapered Amplifier Driver subsystem output has been turned OFF because of actual current exceeding the current limit set point 524 LDD OVER TEMP The Tapered Amplifier Driver subsystem output has been turned OFF because the internal heatsink temperature has exce
58. tions If no value is specified e The Tapered Amplifier returns NO PARAMETER SPECIFIED e No other action is taken If the value specified is not equal to 0 1 or 2 e The Tapered Amplifier returns VALUE OUT OF RANGE e No other action is taken If the value is 0 or 2 e The beeper state is changed per table below e The Tapered Amplifier returns OK Argument Value Description Value 0 Beeper off 1 Beeper on 2 Test beeper 100ms beep See Also BEEP BEEP Description Beep query Syntax BEEP Remarks This query returns the enable status of the beeper 52 Computer Interfacing Response Description beep set 0 Beeper off 1 Beeper on See Also BEEP LOCKOUT Description Lockout the instrument front panel Syntax LOCKOUT Value Remarks This command can be used to lockout all the buttons and dial knob or just the dial knob on the front panel If no value is specified e The Tapered Amplifier returns NO PARAMETER SPECIFIED e No other action is taken If the value specified is not equal to 0 1 or 2 e The Tapered Amplifier returns VALUE OUT OF RANGE e No other action is taken If the value is 0 or 2 e The front panel state is changed per table below e The Tapered Amplifier returns OK Argument Value Description Value 0 Front panel buttons and dial knobs enabled 1 Front panel buttons and dial knobs disabled 2 Front panel dial knob disabled See Also None LOCKOUT Description Instrument front
59. to properly earth grounded receptacles only Failure to observe these precautions can result in fire severe injury or death A WARNING To avoid electric shock the appropriate fuses for the AC input power voltage must be installed in the instrument Only qualified service personnel should replace fuses Failure to observe these precautions can result in fire severe injury or death 3 8 3 Seeding the Amplifier Ensure that the optical seeding requirements are met refer to Section 3 5 Connect the seed laser to the amplifier via the FC APC connector on the input side of the amplifier Make sure that the seed laser polarization is 34 Getting Started 3 8 4 3 8 5 3 8 6 aligned with the slow axis of the fiber in line with the key of the FC APC connector A green INPUT POWER LED on the controller front panel indicates adequate input seed power If the INPUT POWER LED is red seeding power is too low and the amplifier current will not turn on No further alignment of the seed laser is necessary Turning the Amplifier ON Turn lockout keyswitch to T position to power on the unit Press CURRENT ON OFF button The LED in the button will flash for at least 3 seconds and then stay ON The actual amplifier diode current will quickly ramp up to the specified setpoint Turn the knob control to set the desired Current set point If Constant Power mode is desired allow the system time to stabilize on th
60. uccessfully it responds with an OK string Otherwise it returns an error message If an error is returned it is recommended that the User read the error before issuing any additional commands The subsequent sections in this chapter detail the communication protocols supported by the instrument GUI Application An intuitive GUI is provided with the TA 76xx Tapered Amplifier system and can be easily installed The files and installation guide can be found on the USB flash drive provided with the TA system The GUI allows the user to perform all of the operations available on the TA 7600 LN Controller front panel Computer Interface Terminology Listed below are the key abbreviations and concepts used in the command reference section of this manual lt gt Delimiting Punctuation For the purposes of this manual any string enclosed by lt gt is considered to be a command a string or a numerical argument The punctuation lt gt will be used to symbolize the typographic limits of the command string or argument in question 46 Computer Interfacing 5 3 2 lt CR gt Carriage Return The ASCII encoded byte 13 in decimal OD hex 5 3 3 lt LF gt Line Feed The ASCII encoded byte 10 in decimal OA hex 5 3 4 Semicolons Semicolons are used to separate commands within a single transmission concatenation 5 3 5 Command Termination All the commands sent to the driver must be terminated by a lt CR gt lt LF gt
61. ucted as well as radiated disturbances Safety Precautions 21 The TA 76xx System is designed to operate in a controlled electromagnetic environment i e where R F transmitters such as mobile telephones may not be used in close proximity WARNING Use of controls or adjustments or performance procedures other than those specified herein may result in hazardous radiation exposure WARNING The Model TA 7600 LN Tapered Amplifier Controller is intended for use ONLY with New Focus specified amplifier head modules DO NOT ATTEMPT TO USE THE TAPERED AMPLIFIER CONTROLLER WITH UNAPPROVED OTHER DEVICES WARNING The TA 76xx series amplifier heads are intended for use ONLY with a New Focus TA 7600 LN Tapered Amplifier Controller DO NOT ATTEMPT TO USE THE LASER HEAD WITH UNAPPROVED OTHER DEVICES 22 Safety Precautions 1 5 Location of Labels and Warnings 1 5 1 TA 7600 LN Rear Panel RoHS Model Label Serial WEEE Symbols CE label Fuse Figure 16 Rear Panel Labels and Warnings Safety Precautions 23 1 5 2 TA 76xx Head f RA gt Laser Aperture label A Ka e i he Avoid Direct A GE lt 4 Eye Laser 2 Exposure Radiation label Warning label Figure 17 TA 7600 Amplifier Head labels and warnings 2 General Information 2 1 2 2 Theory of Tapered Amplifiers Semiconductor diodes can be used to optically amplify the output of an external cavity diode laser
62. ument Tapered Amplifier REMOTE LOCAL operation mode set command SYSTem MCONtrol Mode This command is used to put the Tapered Amplifier in remote local operation mode The Tapered Amplifier will be in LOCAL mode by default following a power reset In this mode all the main setpoints and other system parameters can be adjusted by turning the control knobs on front panel of the Tapered Amplifier When it is in REMOTE mode knob control is disabled setpoints and other settings can be adjusted only by issuing appropriate commands from a host PC If no value is specified e The Tapered Amplifier returns NO PARAMETER SPECIFIED e No other action is taken If the value specified is not equal to LOC or REM e The Tapered Amplifier returns VALUE OUT OF RANGE e No other action is taken If the value is LOC or REM e The Tapered Amplifier operation mode is changed to LOCAL or REMOTE mode e The Tapered Amplifier returns OK Value Description Mode String REM sets the Tapered Amplifier to REMOTE mode LOC sets the Tapered Amplifier to LOCAL mode 60 Computer Interfacing See Also SYSTem MCONtrol SYSTem MCONtrol Description Tapered Amplifier REMOTE LOCAL operation mode query Syntax SYSTem MCONtrol Remarks This command returns the Tapered Amplifier operation mode Response Description Value REM Tapered Amplifier is in REMOTE mode LOC Tapered Amplifier is in LOCAL mode See Also SYSTem M
63. with a question mark while commands may require parameter s to follow SOURce CURRent DIODe 60 00 For example the value 60 00 in the command SOURce CURRent DIODe 60 00 sets the diode current setpoint to 60 00 mA The command query MUST contain all of the letters shown in upper case lower case letters in the commands are optional and may be used for clarity The commands may be sent to the instrument in either upper or lower case or in any combination For example the following commands are equal SOURce CURRent DIODe 60 00 SOUR CURR DIOD 60 00 source current diode 60 00 Source Current Diode 60 00 48 Computer Interfacing 5 7 2 5 7 3 COMMAND TERMINATION All commands sent to the Tapered Amplifier must be terminated by lt Carriage Return gt lt Line Feed gt characters All responses sent out by the Tapered Amplifier are terminated by the same characters Types of Commands There are five general types of commands Standard Commands Output Commands Sense Commands Source Command and System Commands Standard Commands allow you to get information about the Tapered Amplifier and to set Tapered Amplifier specific parameters such as beeper front panel etc System Commands allow users to query laser and any system level information Output Commands are used to turn ON OFF various outputs that affect laser performance They can be used to query the state of the output also Source Commands are used to

TA-7600 User Manual - Newport Corporation

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