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1. SLD_WAIT 7 Level 1 always active during 3 sec delay at the output enable In case of error the instrument responds either of the following Response Error Description A E CR LF Common error A L CR LF This means that the required command cannot be executed as the instrument is under local control 10 3 6 Operating Parameters Check Query Syntax S3 data 1 data 2 CR LF Where data 1 1 byte integer indicating a channel number 1 for the master SLD 2 for the SOA data 2 1 byte integer indicating parameter number 1 6 see the table below Remarks the device responds numerical code containing information on the queried operating parameter Response A 3 data 1 data 2 data 3 data 6 data 7 CR LF where data 1 1 byte integer indicating a channel number 1 for the master SLD 2 for SOA data 2 1 byte integer indicating parameter number 1 6 see the table below Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland Phone 353 21 4533666 Fax 353 21 4533026 E mail sales superlum ie 23 www superlumdiodes com Master Oscillator Power Amplifier SLD System MOPA SLD 850 Operator s Guide data 3 data 6 3 byte variable containing information about the current state of the SLD driver data 7 5 byte variable containing information about the real value of the queried parameter Data Paramete
2. Superlum is not liable for any personal injury property damage or other direct or indirect damage of any nature caused by personal faults improper and or inadequate using of the instrument coming from disregarding the necessary aspects of laser safety Incorporated into this equipment are the following laser safety features e Key operated master control e Remote interlock connector e Enable button with a built in LED indicator Three second time delay before the optical output activation e Audible and visible warning signals for the optical output activation e Protective metal cap for the optical output e Laser safety marking Before you start working with the device please read thoroughly this manual to acquaint yourself with all features for laser safety implemented in this equipment Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland Phone 353 21 4533666 Fax 353 21 4533026 E mail sales superlum ie www superlumdiodes com Master Oscillator Power Amplifier SLD System MOPA SLD 850 Operator s Guide 1 Description This manual is an operator s guide for the model MOPA SLD 850 Master Oscillator Power Amplifier SLD System a laboratory ultra high power SLD based light source designed and manufactured by Superlum This light source is a bench top optoelectronic instrument designed to generate incoherent light in 850 nm spectral range with optical power of up to 50 mW from fiber
3. 0 CR LF Remarks the device responds numerical code containing information on the current state of the SLD current and temperature controllers Response A 2 data 1 data 2 CR LF Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland 292 Phone 353 21 4533666 Fax 353 21 4533026 E mail sales superlum ie www superlumdiodes com Master Oscillator Power Amplifier SLD System MOPA SLD 850 Operator s Guide where data 1 This decimal number ranges from 000 to 255 It describes the current state of the current and temperature controller for the master SLD data 2 This decimal number ranges from 000 to 255 It describes the current state of the current and temperature controller for the SOA Signal Bit Description of the states of the logical signals TEC_GOOD 0 Level 1 the current temperature of SLD is within the required T window Level 0 the current temperature of SLD is beyond the required T window faulty operation SLD GOOD 1 Level 1 SLD module is enabled Level 0 SLD module is disabled or faulty LIMIT 2 Level 1 the limit current of SLD module has been reached SLD_ERROR 3 Level 1 SLD module is faulty Level 0 SLD is operational MASTER 5 Level 1 the MASTER KEY control is in position ON KEY Level 0 the MASTER KEY control is in position OFF INTERLOCK 6 Level 1 the Remote Interlock connection is open circuited Level 0 the Remote Interlock connection is closed
4. Phone 353 21 4533666 Fax 353 21 4533026 E mail sales superlum ie www superlumdiodes com Master Oscillator Power Amplifier SLD System MOPA SLD 850 Operator s Guide Safety Symbols and Terms This section includes information on the safety symbols used on the product and in the manual and gives explanations about what they stand for These symbols and terms indicate precautions you must strictly follow for safe operation of the device A a A RoHS COMPLIANT 2002 95 EC This symbol indicates the field wiring terminal that must be connected to earth ground before operating the equipment It is intended for protection against electrical shock in case of a fault This warning sign denotes a hazard It calls attention to a procedure practice or the like which if not correctly performed or adhered to could result in personal injury Do not proceed beyond a warning sign until the indicated conditions are fully understood and met This caution sign denotes a hazard It calls attention to an operating procedure or the like which if not correctly performed or adhered to could result in damage to or destruction of the entire product or part thereof Do not proceed beyond a caution sign until the indicated conditions are fully understood and met This sign denotes important information It calls attention to procedures practice condition or the like which is essential to highlight The CE mark shows that the prod
5. AFTER 1HR WARM UP AND CALIBRATION AT 25 C THIS FEEDBACK APPLIED CAN CAUSE TEMPORAL DECREASE OF SOA PERFORMANCE WITH NO RISK FOR THE SOA TO BE FATALY DAMAGED 3 DURING 3 HOURS DEPENDING ON THE SOA INSTALLED IN THE OFF POSITION THE OUTPUT POWER MAY RISE UP TO 0 1 mW 5 MALE CONNECTOR WITH DTE PIN FUNCTIONS Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland 28 Phone 353 21 4533666 Fax 353 21 4533026 E mail sales superlum ie www superlumdiodes com Master Oscillator Power Amplifier SLD System MOPA SLD 850 Operator s Guide Notes Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland Phone 353 21 4533666 Fax 353 21 4533026 E mail sales superlum ie 29 www superlumdiodes com Master Oscillator Power Amplifier SLD System MOPA SLD 850 Operator s Guide Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland Phone 353 21 4533666 Fax 353 21 4533026 E mail sales superlum ie 30 www superlumdiodes com
6. Avoid sharp changes in temperature they can cause water condensation on the internal parts of the instrument most of them are delicate optical components Any amount of water condensation may affect their performance Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland Phone 353 21 4533666 Fax 353 21 4533026 E mail sales superlum ie 11 www superlumdiodes com Master Oscillator Power Amplifier SLD System MOPA SLD 850 Operator s Guide e Retain the original container for possible future use If the device is to be sent to Superlum for repair and the original container is not available use an equal replacement 4 Features and Functions Master Oscillator Power Amplifier SLD System N SUPERLUM MASTER KEY REMOTE MOPA CONTROL OPTICAL OUTPUT O ae Emission On Off EG UN Master SLD Local Mm SOA REMOTE INTERLOCK Output Aperture Co MOPA SLD 3S0 Fig 3 Front Panel Features and Controls 1 POWER This button turns the device on and off When engaged the blue LED indicator lights up 2 MASTER KEY Laser Safety Measure This key operated master control is used as a laser safety measure specified in IEC 60825 1 Turning the key to position allows for output emission activation With the key in position O the output emission of the device cannot be enabled 3 REMOTE This green LED l
7. Beam Light sources assigned to this class are always hazardous for the intra beam ocular viewing even if an accidental short time exposure occurs Viewing them through optical elements with diffuse reflecting properties is usually safe for the user Using controls adjustments or operating procedures that are different from those described in this manual may result in radiation exposure hazardous to the user When the instrument is used with certain optical elements optical amplifiers lenses collimators etc that are not supplied with the product as original accessories or the product is integrated into a high level system it is strictly recommended to reclassify the final optical system in order to determine the total degree of optical radiation hazard The reason for this is that the class of laser hazard may higher under these conditions It is the responsibility of the end user who performs such integration to provide correct reclassification for the optical system at the final stage Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland Phone 353 21 4533666 Fax 353 21 4533026 E mail sales superlum ie 7 www superlumdiodes com Master Oscillator Power Amplifier SLD System MOPA SLD 850 Operator s Guide It is the end user who is responsible for being aware of possible risk associated with using class 3B laser products as well as being adequately trained for working with such light sources
8. It is particularly designed to OCT Optical Coherent Tomography applications where high levels of optical power are frequently needed The system is built on the optical scheme known as MOPA Master Oscillator Power Amplifier This is a combination of a weak power master source called oscillator with a high power output booster called amplifier This configuration is widely and successfully used in various laser applications in order to boost optical power of a master laser For the device in question an SLD master source is used instead of a laser A simplified block diagram of the optical scheme of the device is shown in Fig 1 APC Fig 1 Block Diagram of MOPA Configuration Simplified M SLD Master SLD ISO Isolator SOA Semiconductor Optical Amplifier OPM Optical Power Monitor APC Automatic Power Control A medium power SLD used as a master source provides optical power of 6 10 mW witha relatively broad spectrum of 10 20 nm centered at 850 nm After passing through the appropriate optical isolator with isolation of better than 25 dB this power is raised to a high level of 50 mW by a spectrally matched SOA The key advantage of such an approach is that the SOA becomes weakly sensitive to optical feedback This is because the input power of 6 10 mW is high enough to provide SOA operation in deep saturation mode In this mode the SOA remains rather insensitive to optical feedback up to 14 dB that co
9. Master Oscillator Power Amplifier SLD System fi S U P E R L U M MOPA SLD 850 Operator s Guide Master Oscillator Power Amplifier SLD System MOPA SLD 850 Cc Operation Manual The contents of this manual may be changed without prior notice Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland Phone 353 21 4533666 Fax 353 21 4533026 E mail sales superlum ie www superlumdiodes com Master Oscillator Power Amplifier SLD System MOPA SLD 850 Operator s Guide Document Information Related Device Versions MOPA SLD 850 Document Data 02 07 2015 Document Revision 1 3 1 Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland Phone 353 21 4533666 Fax 353 21 4533026 E mail sales superlum ie www superlumdiodes com Master Oscillator Power Amplifier SLD System MOPA SLD 850 Operator s Guide Table of Contents Page Waranty and LIMITATIONS sosise osean o E E E EE 4 Safety Symbols ANd TermS ccccccsescececeneceeceeeneneeenenensnensnensnsnenenenes 5 General Safety Information ccccscscessceescenscececseenensaeaeaeaeeesanenenenes 6 Laser Safety Information cccccccccccccecccccececececececeeeeeeeeeeeeeeeeneneeeneneneness 7 1 DOSE NOD eiee a e E E a aaa 9 2 Purposes and Scope eseseseneeeeenenenensneeeeeeneeaneeanenseaeanaeaaeeaenenes 11 3 Unpacking and Inspection iat sinsdexsccsiascesodcn
10. ales superlum ie 19 www superlumdiodes com Master Oscillator Power Amplifier SLD System MOPA SLD 850 Operator s Guide 10 2 Data Communication Protocol The instrument responds to commands or queries only if they are placed in the correct order and use the correct mnemonic The following Data Communication Protocol describes the structure of acommand and a query The response structure of the device is also given below Command Query Structure command data CR LF where command command code always begins with S data data if required CR LF line termination sequence CR ASCII13 LF ASCII10 Response Structure command data CR LF where command response code always begins with A data data CR LF line termination sequence CR ASCII13 LF ASCII10 The square brackets are used as a punctuation mark to mark off elements in a command or query In Windows OS the line termination sequence is equal to pressing the Enter button 10 3 Remote Command Set 10 3 1 Identification Query Syntax SO Remarks the device responds an identification string containing numeric information about the instrument Response A 0 data 1 data 2 data 3 data 4 CR LF where data 1 1 byte integer indicating the type of the instrument The value ranges from 0 to 9 data 2 1 byte integer indicating the number of active channels for the ins
11. can be connected to your local external controls for laser safety The device is inoperable unless the interlock connection is made If there are no external controls in your local laser safety system or if the use of these controls is not essential for you the appropriate short circuited connector supplied must be installed to the rear panel remote interlock jack With this connector installed you will be able to use the device independently of your local laser safety system Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland Phone 353 21 4533666 Fax 353 21 4533026 E mail sales superlum ie 13 www superlumdiodes com Master Oscillator Power Amplifier SLD System MOPA SLD 850 Operator s Guide 3 MOD IN This SMA connector is used to connect the device to an external pulse generator for operation in modulation mode TTL pulses are applied here 4 AC POWER INPUT RECEPTACLE This connector accepts a 3 conductor power cord Supplied used to connect the device to your local AC power line 5 AC LINE FUSE HOLDER This holder is used to hold the line fuse 6 GROUNDING TERMINAL This terminal is used to ground the device It accepts a male banana plug 5 Power ON Before you start working with your MOPA SLD 850 please check that you have already read and clearly understood the Safety Information on page 6 Make sure that the required precautions have been taken 1 Place the dev
12. cope This guide has been designed to provide you with basic information on how to set up run and successfully use your MOPA SLD 850 Master Oscillator Power Amplifier SLD System Information on the device maintenance and repair except routine procedures and common recommendations lies beyond the scope of this document and is not intended for the end user This document covers 1 installation 2 manual control from the front panel 3 computer control 4 routine maintenance and recommendations Troubleshooting information is also given here If our documentation does not satisfy your query further support is available Please use the following information to contact Phone 353 21 4533666 yy Fax 353 21 4533026 E mail support superlum ie 3 Unpacking and Inspection In addition to this manual the MOPA SLD 850 includes the following items One AC power cord One optical patch cable Two keys for the device s master control Remote interlock connector comes inserted into the rear panel jack RS 232 null modem cable Connectivity software and user manual on the disc Acceptance Test Report ATR Make sure that all the above items are present and are in good condition If any of the items is missing or damaged please contact Superlum Keep the shipping materials for the carrier s inspection if any damage is found After transportation in cool weather store the container at room temperature for about two hours before opening
13. e that should include the following information e Type of service required repair or calibration e Date of the failure e Description of the problem the mode of operation how often it happens whether problem is constant or intermittent device settings to reproduce the problem any photo or screenshot of the problem Company name and return address Name and phone number of a technical contact person Model number and serial number of the returned instrument List of accessories returned with the instrument 2 Attach a protective cap on the optical output of the device Use the original one or an equal replacement 3 Pack the instrument in the original shipping container or use an adequate replacement if the original container is not available 4 Retain copies of all shipping papers To prevent the optical output of the device from dust and dirty we strongly recommend that you reattach the protective cap to the device s optical output as well as other protective caps to the optical patch cable to be sent with the instrument 13 Customer Service amp Contact Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland Phone 353 21 4533666 Fax 353 21 4533026 E mail support superlum ie Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland Phone 353 21 4533666 Fax 353 21 4533026 E mail sales superlum ie 27 www superlumdiodes com Master Oscillator Pow
14. eeeeeeeeeeeees 27 14 Technical Data essiccare 28 Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland Phone 353 21 4533666 Fax 353 21 4533026 E mail sales superlum ie 3 www superlumdiodes com Master Oscillator Power Amplifier SLD System MOPA SLD 850 Operator s Guide Warranty and Limitations Warranty Superlum warrants the MOPA SLD 850 Master Oscillator Power Amplifier SLD System for a period of 12 months from the date of shipment During this warranty period Superlum will repair or exchange any unit proven to be defective Repairs are warranted for the balance of the original warranty period or at least 90 days For warranty repairs or service the unit must be returned to Superlum at the customer s expense Limitation of Warranty Superlum will not accept liability for any incidental damage caused by the failure of this product This warranty does not cover e Any defect or damage caused by improper operation incorrect connections improper handling of the device etc e Accompanying accessories optical patch cables AC power cords RS 232 cables etc Disassembly of the instrument or any part of the device without prior approval from Superlum will void the warranty Statement of Calibration Superlum certifies that this product has been inspected tested and calibrated to meet its published specifications Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland
15. er Amplifier SLD System MOPA SLD 850 14 Technical Data Operator s Guide Optical Specifications 1 Center Wavelength 850 2 nm Optical Bandwidth FWHM 10 20 nm Spectral Ripple lt 2 aximum Allowed Feedback Output Power 50 mW 45 mW min M 10 dB corresponds to 10 feedback Ouput Power Stability lt 0 5 Polarization Extinction Ratio gt 18 dB 20 dB typ Optical Fiber Type Corning PANDA PM 850 Polarization Orientation in the Output Fiber Slow axis Aligned with the connector key Output Optical Connector FC APC type with narrow key 2 0 mm Electrical Specifications Operating Mode for SLD SOA Constant Power Enable Control Modulation Input port TTL 0 5 V gt Full Power 0 Rin 1 kOhm 1 Manual from the front panel 2 Electronical via a TTL pulses b RS 232 Rise Time Fall Time 2 us 0 5 us Modulation Input Connector SMA female Referenced to Chassis VO Interface RS 232 General Specifications Power Requirements 110 VAC 50 60 Hz Power Consumption 20 VA Max Warm up Time 10 min Operating Temperature Range 15 C to 30 C Storage Temperature Range 0 C to 40 C Continuous Operation 16 hrs day Outline Dimensions W x H x D 257 x 170 x 325 mm Approximate Weight 7kg Warranty 12 months NOTES 1 ALL SPECIFICATIONS ARE QUOTED
16. fied for the device they are not designed to use with the device and can seriously damage its optical output This equipment contains analog circuits of driving electronics that are sensible to temperature changes Therefore after turning the device on the optical power of the device can slightly drift over time For improved stability a 30 minute warm up period is recommended Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland Phone 353 21 4533666 Fax 353 21 4533026 E mail sales superlum ie 15 www superlumdiodes com Master Oscillator Power Amplifier SLD System MOPA SLD 850 Operator s Guide 7 Modulation Mode 1 Install an interconnection cable not supplied between the MOD IN connector located on the front panel of the device and the output of your external pulse generator Note that the MOD IN connector is a female SMA type 2 Prepare the instrument for operation as described in Section 6 on page 15 3 Pre set your pulse generator to the following parameters Pulse Amplitude 5 V TTL Pulse Repetition Frequency 50 kHz Duty Cycle 50 4 Activate the optical output of the MOPA SLD 850 by pressing the Emission On Off button 5 Enable the output of your pulse generator 6 Observe the waveform of optical power on an oscilloscope using a high speed fiber coupled photodetector Compare the obtained results with those depicted in Fig 5 GUWINSTEK Light TTL F
17. ice ignores any command except the Remote Enable command when it is under front panel control Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland Phone 353 21 4533666 Fax 353 21 4533026 E mail sales superlum ie 24 www superlumdiodes com Master Oscillator Power Amplifier SLD System MOPA SLD 850 Operator s Guide 10 3 3 Local Remote Check Query Syntax S1 0 CR LF Remarks the device responds an integer indicating the current mode of operation Response A 1 data CR LF Two possible values for the data are listed in the following table Data Description 1 The instrument is under local control 2 The instrument is under remote control In case of error the instrument sends the following response A E CR LF Example Command S1 2 CR LF Remarks after receiving this command the instrument goes to remote operation Query S1 0 CR LF Response A 1 2 CR LF Here A 1 response code 2 this number means that the instrument is under remote control CR LF line termination sequence CR ASCII13 LF ASCII10 10 3 4 Optical Output Enable Command Syntax S2 data CR LF Remarks this command activates or deactivates the optical output of the device Data Description 1 Toggles the optical output of the device between activation and deactivation states 10 3 5 SLD SOA Driver Check Query Syntax S2
18. ice on a flat surface close to your measuring equipment in a location with sufficient ventilation Make sure the ventilation openings are not obstructed and the optical patch cable can be easily connected 2 Check that the POWER button is set to the off position If it is not in the off position press to release 3 Connect the AC power cord supplied to the rear panel power receptacle 4 Insert either one of the supplied keys into the MASTER KEY lock and leave it in the O position 5 Plug in the device and press the POWER button The blue LED in the button will light up 6 The device is now ready to use Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland Phone 353 21 4533666 Fax 353 21 4533026 E mail sales superlum ie www superlumdiodes com Master Oscillator Power Amplifier SLD System MOPA SLD 850 Operator s Guide 6 Getting Started 1 Connect the device to your local external controls for laser safety Use the REMOTE INTERLOCK jack on the rear panel of the device for this connection If you do not have the external controls for laser use the short circuited connector supplied with the device 2 Connect one end of the optical patch cable to the front panel Output Aperture the other to your measuring equipment e g an optical power meter To ensure low insertion optical loss at the device output follow the direction on the optical cable label 3 Press the POWER button to tur
19. ig 5 Operation in Pulse Modulation Mode Generator Settings Pulse Amplitude 5 V TTL Pulse Repetition Frequency 50 kHz Duty Cycle 50 Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland 16 Phone 353 21 4533666 Fax 353 21 4533026 E mail sales superlum ie www superlumdiodes com Master Oscillator Power Amplifier SLD System MOPA SLD 850 Operator s Guide 8 Power OFF 1 If the optical output is active press the Emission On Off button to disable 2 Turn the MASTER KEY control counterclockwise to position O 3 Depress the POWER button Always disable the optical output before turning the device off Never unplug the device if the optical output is active 9 Routine Maintenance and Recommendations In order to ensure accurate and reliable operation of the device it is very important to clean ferrules of the output optical fiber Dirt dust and oil inside the connector ports may scratch the surface of the ferrules thereby producing erroneous results Never store the device with the uncovered optical output Always recap the connectors of the optical patch cable We recommend that you clean the fiber ferrules before each insertion Use 99 or better isopropyl alcohol and a lint free cloth for this procedure Use a can of compressed air to dry off the connectors after wiping and to blow out dust from bulkheads If optical patch cables not supplied with the instrument are to be
20. ights up only when the device is controlled remotely from a computer 4 LOCAL This button terminates remote access and returns the device to local operation 5 SERVICE This light indicates that the device needs servicing Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland Phone 353 21 4533666 Fax 353 21 4533026 E mail sales superlum ie www superlumdiodes com Master Oscillator Power Amplifier SLD System MOPA SLD 850 Operator s Guide 6 EMISSION ON OFF This button toggles between activation and deactivation of the output emission When the light is green emission is activated 7 OUTPUT APERTURE This socket is the optical output of the device The optical patch cable supplied with the device is connected here 8 PROTECTIVE CAP This cap is used to protect the optical output from dust and dirt Always reattach this cap when the device is not in use 9 REMOTE INTERLOCK Laser Safety Measure This is used to inform the operator that the terminals of the remote interlock connector are open circuited When this happens the LED illuminates red x cN MOD IN SS le 1 kOhm O REMOTE INTERLOCK 0 Fig 4 Rear Panel Features and Controls 1 RS 232 CONNECTOR This adapter is used to connect the device to a computer for remote access 2 REMOTE INTERLOCK Laser Safety Measure This is an audio monophonic jack through which the device
21. ir Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland Phone 353 21 4533666 Fax 353 21 4533026 E mail sales superlum ie 25 www superlumdiodes com Master Oscillator Power Amplifier SLD System MOPA SLD 850 Operator s Guide Problem 4 Possible Reason Remedy After activation of the optical power the LED of the Emission button momentary switches to red and the optical output is disabled The SLD driving electronics operates improperly The device needs servicing Please notify Superlum about this problem and send the instrument for repair Problem 5 Possible Reason The current value of optical power is lower than the specified one but the Service indicators do not illuminate Fiber tips of the optical patch cable are dirty Remedy Disconnect the patch cable and clean the end faces of the connectors Then re attach the cable and measure the output power again If the problem persists consult Superlum Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland 26 Phone 353 21 4533666 Fax 353 21 4533026 E mail sales superlum ie www superlumdiodes com Master Oscillator Power Amplifier SLD System MOPA SLD 850 Operator s Guide 12 Preparing the Instrument for Shipment If the instrument is to be sent to Superlum for repair or calibration prepare the device using the instructions below 1 Write a description of the failur
22. l SM based realizations The device uses Superlum driving electronics that features high stability and reliability for SLD applications To ensure safe driving the following protective measures are implemented the soft start of drive current at activation turn on transient suppression protection against overheating and disconnection and pumping current clamping at a limit level Both the master SLD and the SOA are operated in constant power mode which provides better stability of optical power than operation in constant current mode The device can be operated in pulse modulation mode With TTL pulses applied to the MOD IN connector on the rear panel the instrument toggles between activation and deactivation states The maximum frequency of modulation is 50 kHz Each instrument is carefully tested at the final stage including calibration measurements short term running etc and an individual acceptance test report is provided with the device Detailed information on the MOPA design for SLD applications including physical estimations and practical results is available at http Awww superlumdiodes com pdf Ultra High Power MOPA SLD Sources pdf Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland Phone 353 21 4533666 Fax 353 21 4533026 E mail sales superlum ie 10 www superlumdiodes com Master Oscillator Power Amplifier SLD System MOPA SLD 850 Operator s Guide 2 Purposes and S
23. n the device on The Thermo Electric Cooler TEC controllers are activated automatically at power on They remain active until the device is turned off 4 Turn the MASTER KEY clockwise to position I The device will run an internal test to verify whether or not the remote interlock connection has been made If the test passes you can activate the optical output of the device continue to step 5 to do this If the test fails the REMOTE INTERLOCK LED will light up steady red and the device will produce a continuous tone The alarm signifies that the remote interlock connection is open circuited Any attempt to activate the output emission will fail until the remote interlock connection has been made and the alarm is reset To reset turn the key to position O and back to position I again 5 Enable the optical output power by pressing the Emission On Off button There will be a three second delay during which the button will blink and the device will beep Once the delay has elapsed the button displays a steady green light and the audible signal is turned off At this point the output emission begins 6 Verify that the output power of the device corresponds to the value listed in the ATR To keep the end faces of the optical patch cable clean and protected we strongly recommend that you avoid unnecessary disconnections Whenever possible leave the optical cable connected to the device Never use optical connectors different from those speci
24. naiie davanaeutbentactendersteaxvetas 11 4 Features and Functions sicesacsascsicniausetencendetensendbstnacciansanesdoitadaseeeanes 12 Da gs c a Perec te ee eae a ee ee eee eee oe ere ern rete 14 6 GEUING Starlet sridi nsir eE ana AEE EEr aia S 15 Ts Modula on ModE eruseciina a a D EEEE ieia 16 om ao E a E IE EE AAE aga EAN A ET 17 9 Routine Maintenance and Recommendations cseeeeeeeeees 17 10 Computer COI Olas ecacarncs esses eeeencnen narai aa ERARE 18 10 1 Introduction to Remote Operation 0 0eeeeeeeeeeeeeeeeeeeees 18 10 2 Data Communication Protocol 0 0ceeeeeeeeeeeeeeeeeeeeeeeeenes 20 10 3 Remote Command Set ccccccccssssssssssseeeeeeeeeeessaeaueesssseseeeeees 20 10 3 1 Identification Query 2 0 cccccccceceeeeeseeseseneaeeeeeeeeeeeeeeeetesseees 20 10 3 2 Local Remote Enable Command l 21 10 3 3 Local Remote Check Query eeeeeeeeeeeeeeeeeeneeeeeneees 22 10 3 4 Optical Output Enable Command ccccceeeeeeeeeeeeeeeeeeees 22 10 3 5 SLD SOA Driver Check Query ccccceeeeeeeeeeeeereeeeeees 22 10 3 6 Operating Parameters Check QuEeLyY seseseeeeeeeteeees 23 11 Troubleshooting Information 00 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeees 25 12 Preparing the Instrument for SHipMent ec eeeeeeeeeeeeeeeeeeeeeeeeees 27 13 Customer Service amp Contact cece eeee ee eeeeeeeeeeeeeeeeee
25. oblem 1 Possible Reason After turning the device on the POWER button remains blank and the device does not work 1 The AC power cord is disconnected 2 The line fuse is blown Remedy 1 Check the power cord connection 2 Disconnect the AC power and replace the fuse with a new one of the same rating Problem 2 After turning the MASTER KEY to position I the instrument activates the Possible Reason Remedy alarm and the REMOTE INTERLOCK LED turns red 1 The device has not been connected to your laser safety system or the cable responsible for this connection is faulty 2 Your local laser safety system has been trigged that cause the device to alarm 1 Turn the MASTER KEY to position O and verify that the remote interlock connection is made properly and no disconnections persist Then try to run the device again 2 Turn the MASTER KEY to position O and reset your laser safety system Then start the device again 3 If you use the device independently of your laser safety system check that the appropriate short circuited connector has been installed into the rear panel jack and the connection is not lost Problem 3 Possible Reason Remedy The Service indicator blinks or lights steadily The SLD driving current has reached the maximum allowable level The reason is SLD performance degradation The device needs servicing Please notify Superlum about this problem and send the instrument for repa
26. r Description 1 PD Setting value of photodiode current 2 SLD_REAL Real value of SLD driving current 3 LIMIT Maximum allowable value of SLD driving current 4 T_SET Setting value of SLD operating temperature 5 SLD_SET Setting value of SLD driving current 6 T_REAL Real value of SLD operating temperature In case of error the instrument responds one of the following Response Error Description A E CR LF Common error A L CR LF This means that the required command cannot be executed as the instrument is under local control A W CR LF This means that the required command cannot be executed because SLD is being activated Values of the operating parameters can be measured with the following resolution e Setting and real value of SLD operating temperature 1 Q of the internal thermistor Rt 10 kQ 25 C e Setting value of photodiode current 1 pA e Setting and real value of SLD driving current 0 1 mA e Maximum allowable value of SLD driving current 0 1 mA Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland Phone 353 21 4533666 Fax 353 21 4533026 E mail sales superlum ie 24 www superlumdiodes com Master Oscillator Power Amplifier SLD System MOPA SLD 850 Operator s Guide 11 Troubleshooting Information The following table gives an overview over the most possible problems and on what to do to solve them Pr
27. r power line voltage and the correct fuse is installed Use this equipment only with either the supplied AC power cord or with an equal replacement Do not use this device with AC power source which is different from that specified on the rear panel of the device Failure to obey this rule may result in personal injury and can cause permanent damage to the device Do not open the device as you may damage it Disassembly of the device will lead to voiding of the warranty Never operate the instrument at condensing conditions Have you instrument recalibrated once a year Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland 6 Phone 353 21 4533666 Fax 353 21 4533026 E mail sales superlum ie www superlumdiodes com Master Oscillator Power Amplifier SLD System MOPA SLD 850 Operator s Guide Laser Safety Information The light source in this equipment is classified as a Class 3B laser product according to IEC 60825 1 Ed 2 0 2007 03 standard Table 1 Laser Safety Classification Based on IEC 60825 1 Ed 2 0 2007 03 Model Class Optical Operational Emitted Beam Output Power Mode Wavelength Radiation Aperture max Angle MOPA SLD 850 3B 50 mW CW 850 nm 11 5 deg Fig 3 Information about the class of the product can be found on the yellow label on the front panel of the device above the Optical Aperture see Fig 3 CLASS 3B LASER PRODUCT Avoid Exposure To
28. rresponds to typical back reflections of 4 naturally imposed by a normal cleaved fiber tip Fig 2 Further increase of this value to 10 dB will cause significant reduction of the SOA performance but without any fatal damage to the SOA emitter Due to low sensitivity to optical feedback there is no need to use an optical isolator as a protective measure at the output of the SOA In this situation substantially lower operating currents are realized Obviously the SOA lifetime thereby could be prolonged Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland Phone 353 21 4533666 Fax 353 21 4533026 E mail sales superlum ie 9 www superlumdiodes com Master Oscillator Power Amplifier SLD System MOPA SLD 850 Operator s Guide 60 50 2 3 1 Same ab 40 O A 30 4 KS 20 O 10 0 T T T T T T T 0 50 100 150 200 250 300 350 400 SOA Current mA Fig 2 Power Current Characteristics of SOA 1 SOA without input optical power free running mode angle cleaved fibers 2 10 mW power of master SLD applied angle cleaved output fiber 3 10 mW power of master SLD applied normal cleaved output fiber As well as the mentioned advantages the other important one is all PM fiber design which gives perfect stability of the PER Polarization Extinction Ratio under varying conditions of temperature humidity and long term usage than conventiona
29. trument being used The value ranges from 1 to 4 data 3 1 byte integer indicating the current number of the firmware version used in this instrument The value ranges from 0 to 9 data 4 5 byte serial number of the instrument being used In case of error the instrument sends the following response A E CRI LF Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland 20 Phone 353 21 4533666 Fax 353 21 4533026 E mail sales superlum ie www superlumdiodes com Master Oscillator Power Amplifier SLD System MOPA SLD 850 Operator s Guide Example Query SO CR LF Response A 0 5 2 0 12345 CR LF Here A 0 response code 5 this type of the instrument is 5 2 this instrument is a two channel device 0 this version of the firmware is 0 12345 the serial number of the instrument is 12345 CR LF line termination sequence CR ASCII13 LF ASCII10 e For the MOPA SLD 850 the ID number is 5 10 3 2 Local Remote Enable Command Syntax S1 data CR LF Remarks this command activates or deactivates remote control The data is 1 byte integer indicating the mode to be activated Two possible values for the data are tabulated below Data Description 1 Returns the device to local operation 2 Activates remote control Local operation is a factory default setting that is activated each time at power up The dev
30. uct complies with all relevant European Legal Directives This warning label denotes laser radiation This label means the compliance with the requirement ofthe RoHS Directive Directive 2002 95 EC Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland Phone 353 21 4533666 Fax 353 21 4533026 E mail sales superlum ie 5 www superlumdiodes com Master Oscillator Power Amplifier SLD System MOPA SLD 850 Operator s Guide General Safety Information General Notes and Warnings This operation manual must be read completely before using the device Incorrect use or handling and any consequences arising from this may damage the device or endanger personnel The manufacturer declines all liability resulting from incorrect use and handling Safety Notes Before you switch the device on make sure that all protective earth terminals extension cords and autotransformers are connected to a protective earth grounded receptacle Any interruptions of the protective grounding conductor or disconnections of the protective earth terminal can make the device dangerous Do not perform an intentional interruption of the protective grounding conductor For continued protection against fire hazard replace the line fuse only with a fuse of the same rating current time delay etc Do not use repaired fuses or short circuited fuse holders Before you switch the device on verify that the product is set to you
31. used pay close attention to the connector type It must be compatible with the optical output of the device Any attempt to use connectors other than specified can cause permanent damage to the device Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland Phone 353 21 4533666 Fax 353 21 4533026 E mail sales superlum ie 17 www superlumdiodes com Master Oscillator Power Amplifier SLD System MOPA SLD 850 Operator s Guide 10 Computer Control 10 1 Introduction to Remote Operation This instrument is equipped with the RS 232 interface to provide communication between the device and a PC By sending the appropriate commands from a computer it is possible to do the following e Monitor performance parameters of the device the driving current operating temperature etc e Activate or deactivate the optical output of the device The device responds to the following actions from a PC e Commands they change the current state of the instrument e Queries they query numerical values of operational parameters The instrument goes to remote operation immediately as soon as addressing to it is executed The green light of the REMOTE LED indicates that the device is under remote control In this state the front panel features are locked out Press the Local button on the front panel to return to local operation or send the necessary command from a computer Configuration the cable wires and a pino
32. ut for the RS 232 connector are shown in Fig 6 and Fig 7 respectively MOPA SLD Computer DB 9 DTE DB 9 DTE Pin 3 Pin 3 Pin 5 Sa Pin 5 Fig 6 RS 232 Cable Configuration Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland Phone 353 21 4533666 Fax 353 21 4533026 E mail sales superlum ie www superlumdiodes com Master Oscillator Power Amplifier SLD System MOPA SLD 850 Operator s Guide Pin No Signal Description No connection RxD Receive Data TxD Transmit Data No connection GND Signal Ground No connection No connection No connection No connection 00 Ni OIA BGO PO Fig 7 RS 232 Connector Pinout Use the following settings on your computer to communicate with the device Baud rate bits per second 57600 Data bits 8 Parity none Start bit 1 Stop bit 1 Flow control none Galvanic isolation 1 kV Data type ASCII string Before connecting or disconnecting the RS 232 cable between the instrument and your computer always unplug both devices the instrument and your computer e For connection to a PC always use a null modem cable supplied For the first running of the device from a computer the use of the Superlum connectivity software is recommended Superlum Unit B3 Fota Point Enterprise Park Carrigtwohill Co Cork Ireland Phone 353 21 4533666 Fax 353 21 4533026 E mail s

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