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OEM Laser Diode Controller

ITC1xx
Operation Manual

2018

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Содержание ITC1 Series

Страница 1: ...OEM Laser Diode Controller ITC1xx Operation Manual 2018 ...

Страница 2: ...Copyright 2018 Thorlabs GmbH Version Date Item No 3 1 10 Jul 2018 M0009 510 501 ...

Страница 3: ...nnecting Laser Diode and Photo Diode 18 4 3 Connecting TEC and Temperature Sensor 19 4 4 Connecting the Interlock 20 4 5 Polarity Check of the TEC 21 4 6 Operation 22 4 7 PID Adjustment 5 Connecting Scheme Examples 23 24 5 1 Laser Diode Controller 26 5 2 Temperature Controller 6 Display Module ITC100D 28 28 6 1 Preparing the ITC100D 29 6 2 ITC100D Jumper Settings 30 6 3 ITC100D Adjustment 7 Mainte...

Страница 4: ...mensions ITC100F 39 8 5 Certifications and Compliances 40 8 6 Warranty 41 8 7 Copyright and Exclusion of Reliability 41 8 8 Thorlabs End of Life Policy 42 8 9 List of Acronyms 43 8 10 Thorlabs Worldwide Contacts ...

Страница 5: ... international partners are looking forward to hearing from you Thorlabs GmbH Warning Sections marked by this symbol explain dangers that might result in personal injury or death Always read the associated information carefully before performing the indicated procedure Please read these advices carefully This manual also contains NOTES and HINTS written in this form Attention Paragraphs preceeded ...

Страница 6: ...e components be made or components not supplied by Thorlabs GmbH be used This precision device is only serviceable if properly packed into the complete original packaging If necessary ask for a replacement package prior to return Warning Laser emission is dangerous to human eye Do not stare into the emitting aperture wear protective glasses and observe the safety instructions supplied with the las...

Страница 7: ...rs of this unit since the electromagnetic field intensity may then exceed the maximum allowed disturbance values according to IEC 61326 1 This product has been tested and found to comply with the limits according to IEC 61326 1 for using connection cables shorter than 3 meters 9 8 feet 1 2 Ordering Codes and Accessories ITC102 OEM Laser Diode and Temperature Controller 200 mA 12 W ITC110 OEM Laser...

Страница 8: ...gh a 15 pin D Sub connector A fixed ground level design significantly im proves noise transient suppression and output stability The laser operating current can be modulated by an external control signal The built in temperature controller includes a full PID feedback loop with independent P I and D settings which can be individually optimized A wide variety of temperature sensors such as thermist...

Страница 9: ... 2018 Thorlabs GmbH 2 Getting Started 7 2 3 Operating Elements ...

Страница 10: ...rity Switch to the left cathode grounded CG Switch to the right anode grounded AG S3 Temperature sensor selection Switch to the left thermistor Switch to the right transducer AD590 etc S4 TEC I share ON OFF Switch towards ST2 TEC I share ON Switch towards ST1 TEC I share OFF Jumper JP1 Bias Jumper closed bias connected to ST2 Pin 12 1 Jumper open bias disconnected from ST2 Pin 12 1 JP2 Bias Jumper...

Страница 11: ... Connecting Elements 9 3 Connecting Elements 3 1 ST1 I O Connector 64 pin Numbering of ST1 pins Short Description of ST1 Pin Assignment The following table lists the pin assignment of ST1 with respect to their functionality ...

Страница 12: ...t Ract 2 Measurement voltage 1 to 4 V 50 mV C transducer 5 mV to 4 V 50 mV kW thermistor C11 Tset Rset Measurement voltage A11 Ttune Control voltage 5 to 5 V 20 C V transducer 16 kW V thermistor Laser Diode Current Controller A15 LD Modulation Input 5 to 5 V 40 mA V 200 mA V 600 mA V A19 IPD 2 Measurement voltage 0 to 5 V 2 5 V mA A20 ILD 2 Measurement voltage 0 to 5 V CG 0 to 5 V AG 25 V A 5 V A ...

Страница 13: ...lector L Temperature window exceeded C13 OTP output open collector L Heat sink over temperature C14 Digital GND Common pin for all digital signals Laser Diode Current Controller C15 LD ON control input H Laser on A17 TTL MOD input H Laser on C16 LD ON control output open collector L Laser on C18 LIMIT LD control output open collector L Laser current limit reached C17 Interlock Interlock CLOSED whe...

Страница 14: ...3 3 µA 13 AD590 14 Thermistor GND 100 W to 80 kW 15 Thermistor Laser Diode Current Controller 11 Laser Diode Anode CG 0 2 A max 4 V 1 0 A max 4 V 3 0 A max 4 V 3 Laser Diode GND 10 Laser Diode Cathode AG 0 2 A max 4 V 1 0 A max 4 V 3 0 A max 4 V 2 Monitor Photo Diode Cathode 0 to 2 mA floating differential input 4 Monitor Photo Diode Anode 9 Output PD Bias set with JP2 5 V const 12 Output PD Bias ...

Страница 15: ...PD_DISP 5 Output ILD_DISP 6 Output ILDLim_DISP 7 Output TSET_DISP 8 Output TACT_DISP 9 Output ITECLim_DISP 10 Common ground for pin 4 to pin 9 3 4 ST4 and ST5 SMB Coaxial Connectors Function Coefficient ITC102 ITC110 ITC133 ST4 Laser Diode Modulation Input LD MOD 5 V to 5 V 40 mA V 200 mA V 600 mA V ST5 Temperature Tune Input T TUNE 5 V to 5 V 20 C V transducer 16 kW V thermistor ...

Страница 16: ...C current at the same time provided that the power supply can deliver 6 1 A Note With 15 V power supply and high output currents the internal power dissipation of the ITC1xx increases significantly This may cause a degradation of the specifications In such cases the use of a 12 V supply is recommended The increase of the heat sink temperature for a vertically installed ITC1xx board without forced ...

Страница 17: ...ect to laser diode protection and to the stability of the laser current The photodiode can be used either floating or with anode or cathode grounded Additionally a bias voltage can be applied Connect the laser diode and the photodiode using shielded twisted pair cables The anode and cathode connection of each device should be twisted Warning Disconnecting the laser diode during operation may destr...

Страница 18: ...s dashed line can be made either at the laser or at the ITC1xx con nector Laser diode AG photo diode CG 5 V bias Laser diode AG photo diode AG 5 V bias Attention Reverse connection of the photo diode can permanently damage the photo diode when using a bias voltage Check the control voltage output IPD A19 prior to enabling a bias voltage The output voltage must be positive ...

Страница 19: ... shown as dashed line can be made either at the laser or at the ITC1xx con nector Laser diode CG photo diode CG 5 V bias Laser diode CG photo diode AG 5 V bias Attention Reverse connection of the photo diode can permanently damage the photo diode when using a bias voltage Check the control voltage output IPD A19 prior to enabling a bias voltage The output voltage must be positive ...

Страница 20: ...sis correspond to the pin numbering of the 64 pin connector ST1 Connecting the TEC Element Attention Make sure that the polarity of the TEC element Peltier is correct Otherwise the temperature will run into the wrong direction this way leading to a thermal damage of the laser diode Connecting a thermistor NTC temperature sensor Connecting an AD590 temperature sensor Connecting a LM335 temperature ...

Страница 21: ... of the external interlock circuit must be between 0 and 430 W It is also possible to connect an LED current through the LED is about 3 5 mA as shown in the right diagram In this case the LED serves as an additional signal that the laser current is switched on When the laser current is switched on the interlock is checked if it is open the laser cannot be switched on If the interlock is interrupte...

Страница 22: ... TACT or RACT runs away from the set point the TEC element is reverse poled Change polarity and repeat the procedure If TACT or RACT is oscillating around the set point the TEC element is connected correctly but the P I and D share values of the control loop need to be adjusted If TACT or RACT is settling properly to the set point the TEC element has been connected correctly however the values for...

Страница 23: ...mber that the interlock circuit must be closed to enable the switch on of the laser current Setting a Temperature Window A temperature window can be enabled in order to protect the laser diode The temperature controller must not be switched on Keep your temperature sensor on a constant temperature Adjust the temperature set point TSET or RSET using the potentiometer P4 measured at pin C11 of ST1 i...

Страница 24: ...oo high values lead to regulation oscillations The P share has been set correctly if after only 2 3 overshoots the actual temperature re mains stable close to the set temperature D share Change the set temperature repeatedly between about 18 C and 22 C while observing the settling behavior of the actual temperature Increase the D share gradually Higher values will decrease the amplitude of the ove...

Страница 25: ...iode the temperature sensor the TEC and the interlock connection can be made through the 15 pin DSUB connector ST2 This way a Thorlabs laser diode mount can be connected directly using the CAB430 cable to be ordered separately Below are given some schematic examples how to connect peripherals to the ITC1xx for the case of using ST1 only and for the case using both the ST1 and ST2 connectors For cl...

Страница 26: ... 2018 Thorlabs GmbH 24 ITC1xx 5 1 Laser Diode Controller In the above schematic diagram a laser diode AG anode grounded and a monitor photo di ode CG cathode grounded are connected to the 64 pin ST1 ...

Страница 27: ...18 Thorlabs GmbH 5 Connecting Scheme Examples 25 In the above schematic diagram a laser diode AG anode grounded and a monitor photo di ode CG cathode grounded are connected to the 15 pin DSUB connector ST2 ...

Страница 28: ... 2018 Thorlabs GmbH 26 ITC1xx 5 2 Temperature Controller In the above schematic diagram a TEC element Peltier and a thermistor temperature sensor are connected to the 64 pin ST1 ...

Страница 29: ... 2018 Thorlabs GmbH 5 Connecting Scheme Examples 27 In the above schematic diagram the TEC element Peltier and the thermistor temperature sensor are connected to the 15 pin DSUB connector ST2 ...

Страница 30: ...he order when turning the rotary switch from the left to the right stop Monitor photo diode current IPD Laser diode current ILD Laser diode current limit ILD LIM Temperature set point TSET transducer or RSET thermistor Actual temperature TACT transducer or RACT thermistor TEC current limit ITEC LIM 6 1 Preparing the ITC100D The ITC100D can be mounted directly to the ITC1xx board Fix the display mo...

Страница 31: ...ay according to the type of ITC1xx Set the jumpers depending on the ITC1xx type as listed below ITC1xx Type Position of jumper ILD Position of jumper ILIM ITC102 1 1 ITC110 3 3 ITC133 2 2 This results in the following units for the six selectable parameters Parameter ITC102 ITC110 ITC133 IPD mA mA mA ILD mA A A ILD LIM mA A A TSET TACT transducer C C C RSET RACT thermistor kW kW kW ITEC LIM A A A ...

Страница 32: ...Adjust ILD LIM Set the laser controller to constant current mode Adjust the laser current limit to about 90 of maximum current and the laser current setting to maximum current Connect an ampere meter to the laser output pins Use P3 to adjust the ITC100D reading to the measured output current P5 Adjust TACT Set the temperature sensor to a well defined temperature and adjust the ITC100D reading to t...

Страница 33: ... not exceed 430 W Ø Is the laser output turned on Apply a logical high level to pin C15 of ST1 to turn on the laser output The LED1a on the controller board must light up Ø The hardware limit ILIM might be set to 0 Adjust the hardware limit ILIM using P1 to the desired value pin C20 of ST1 Ø Is the laser diode installed properly Check the connection cables Ø Is the switch S2 set according to the l...

Страница 34: ...et accordingly Check the connection and polarity of the temperature sensor please refer to section Connecting TEC and Temperature Sensor Adjust P4 to the desired temperature C11 of ST1 Ø The TEC current limit might be set to 0 Adjust P3 to the desired TEC current limit A9 of ST1 Ø Is the ITC1xx set correctly for the used temperature sensor Select the temperature sensor using S3 Set temperature dif...

Страница 35: ...ange 0 to 200 mA 0 to 1 A 0 to 3 A Setting Accuracy Repeatability full scale 2 typ 0 1 Analog Modulation Input Input Resistance 10 kW Modulation coefficient CC 40 mA V 5 200 mA V 5 600 mA V 5 Small Signal 3 dB Bandwidth CC DC to 200 kHz DC to 50 kHz DC to 20 kHz Modulation Coefficient CP 0 4 mA V 5 TTL Modulation Input Rise Fall Time 10 µs 50 µs 100 µs TTL Control Input LD ON Measurements and Cont...

Страница 36: ...o 80 C Setting Accuracy full scale typ 2 Repeatability full scale 0 1 Temperature Stability typ 0 004 C TEC Current Limit Setting Range Accuracy typ 5 Temperature Control Inputs Analog Control Input TSET RSET Input Resistance 10 kW Input Coefficient Thermistor 16 kW V Input Coefficient IC Sensor 20 C V TTL Control Input TEC ON Measurement and Control Outputs Analog Outputs TSET RSET TACT RACT ITEC...

Страница 37: ... to 70 C Warm Up Time for Rated Accuracy 10 min Dimensions W x H x D 100 x 42 x 160 mm Eurocard Weight 0 7 kg 1 The total combined current for the ITC133 is limited by the total thermal dissipation loss Optimized cooling by fan or bigger heat sink allows 3 A LD and 3 A TEC at the same time provided the power supply provides 6 1 A 2 non condensing All technical data are valid at 23 5 C and 45 15 re...

Страница 38: ... 2018 Thorlabs GmbH 36 ITC1xx 8 2 Dimensions ITC1xx All dimensions in mm ...

Страница 39: ... 2018 Thorlabs GmbH 8 Appendix 37 8 3 Dimensions ITC100D All dimensions in mm ...

Страница 40: ... 2018 Thorlabs GmbH 38 ITC1xx 8 4 Dimensions ITC100F All dimensions in mm ...

Страница 41: ...ucted RF Immunity Performance Criterion B EN 61000 3 2 AC Power Line Harmonic Emissions Australia New Zeal and Declaration of Conformity Complies with the Radiocommunications Act and demonstrated per EMC Emission standard 2 3 4 AS NZS 2064 Industrial Scientific and Medical Equipment 1992 FCC EMC Compli ance Emissions comply with the Class A Limits of FCC Code of Federal Regulations 47 Part 15 Subp...

Страница 42: ... or software determined by Thorlabs GmbH for this unit to operate fault free provided that they are handled according to our requirements However Thorlabs GmbH does not warrant a fault free and uninterrupted operation of the unit of the software or firmware for special applications nor this instruction manual to be error free Thorlabs GmbH is not liable for consequential damages Restriction of War...

Страница 43: ...ined in this document Should you require further information on this product or encounter specific problems that are not dis cussed in sufficient detail in the document please contact your local Thorlabs GmbH dealer or system installer All rights reserved This document may not be reproduced transmitted or translated to another language either as a whole or in parts without the prior written permis...

Страница 44: ...lled recycling of end of life products will thereby avoid negative impacts on the environment Crossed out Wheelie Bin symbol 8 9 List of Acronyms AC Alternating Current ADC Analog to Digital Converter AG Anode Ground CC Constant Current CG Cathode Ground CP Constant Power DAC Digital to Analog Converter D Share Differential share DC Direct Current DIL Dual In line DIN Deutsche Industrie Norm IC In...

Страница 45: ... com Scandinavia Thorlabs Sweden AB Bergfotsgatan 7 431 35 Mölndal Sweden Tel 46 31 733 30 00 Fax 46 31 703 40 45 www thorlabs com Email scandinavia thorlabs com France Thorlabs SAS 109 rue des Côtes 78600 Maisons Laffitte France Tel 33 970 444 844 Fax 33 825 744 800 www thorlabs com Email sales fr thorlabs com Brazil Thorlabs Vendas de Fotônicos Ltda Rua Riachuelo 171 São Carlos SP 13560 110 Braz...

Страница 46: ...www thorlabs com ...

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