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IP500
500 mA Laser Diode
Controller

User Guide

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Summary of Contents for IP500

Page 1: ...IP500 500 mA Laser Diode Controller User Guide ...

Page 2: ...2 2 2 Operation 4 2 2 1 Automatic Constant Current Control ACC 4 2 2 2 Automatic Constant Power Control APC 5 2 2 3 Analog Modulation 6 2 2 4 Remote Control Inputs 7 2 3 Alarms and Troubleshooting 7 2 4 Remote Monitoring 8 2 5 Accessories 8 Chapter 3 Specifications 9 Chapter 4 Regulatory 12 Chapter 5 Thorlabs Worldwide Contacts 13 ...

Page 3: ...th the unit 1 1 Features Accepts photodiode feedback currents of up to 2 0 mA Pin configurations and operating modes are easily set using on board jumpers Current and power limits are set using individual 25 turn potentiometers Current or power is adjusted using a 25 turn potentiometer Easily accessible test points allow analog monitoring of the injection current and photodiode feedback current as...

Page 4: ... Diode Jumper Wire Color Designation J2 1 Purple Laser Cathode of Anode Grounded Diode or Laser Anode of Cathode Grounded Diode J2 2 Black Laser Anode Ground or Laser Cathode Ground J2 3 Black Monitor Photodiode Cathode J2 4 Orange Monitor Photodiode Anode Note Either the monitor photodiode cathode or monitor photodiode anode MUST be connected to ground somewhere in this system Typically this is d...

Page 5: ...IP500 Laser Diode Controller Chapter 2 Setup and Operation Rev I December 1 2015 Page 3 Figure 1 Laser Diode Connections ...

Page 6: ...ing in ACC the PLIM power limit function is still active if the MPD current reaches the limit point This is especially helpful if the laser is to be operated at varying temperatures where the efficiency may change to the point where the operating current will overdrive the laser The PLIM will always keep the laser in a safe operating area when properly set If no MPD is connected always set the PLI...

Page 7: ... APC Photodiode feedback current is required in APC mode 1 Set JMP1 to either AG for Laser Diodes with Grounded Anodes or CG for Laser Diodes with Grounded Cathodes JMP1 is located on the left side of the unit Always disable the laser driver prior to changing modes 2 Set JMP2 to APC for Constant Current operation JMP2 is located on the left side of the unit Always disable the laser driver prior to...

Page 8: ... in constant current at the current limit level 2 2 3 Analog Modulation The amplitude of the laser injection current can be varied over time by connecting a signal generator to the BNC connector J3 on the IP500 It is recommended that the unit be configured to operate in ACC mode whenever analog modulation is used J3 can also be used as a remote analog input allowing the user to program the laser i...

Page 9: ...A closed connection across J4 3 to J4 4 will prevent the unit from being ENABLED Leave unconnected when not using Pin Description J4 5 Remote Interlock Input J4 6 Remote Interlock Return common to ground An open connection across J4 5 to J4 6 will prevent the unit from being ENABLED These two points must be connected for unit to operate All connections to J4 must be made using isolated or dry cont...

Page 10: ...negative level at the IPD Test point The Photodiode is not connected in PMODE operation Identified by 0 V at the IPD Test point The Photodiode is short circuited in PMODE operation Identified by 0 V at the IPD Test point The ILIM pot is set full CCW minimal 2 4 Remote Monitoring J5 has been reserved as an I O port for specialized applications incorporating the IP500 Refer to the attached engineeri...

Page 11: ... mA Limit Accuracy 1 of Limit Setpoint Constant Power Mode Control Range Photo Diode Current 5 μA to 2 mA Setting Accuracy 2 μA Drift 30 min 10 Hz 1 μA Limit Adjust Range 0 to 2 5 mA Limit Accuracy 2 μA Analog Modulation Control Voltage Input Resistance 10 kΩ Bandwidth DC to 50 kHz Transfer Function ACC Mode 50 mA V Input Range 0 to 10 V Analog Monitor Outputs Note All Outputs are Single Ended wit...

Page 12: ...IP500 Laser Diode Controller Chapter 3 Specifications Page 10 3037 D02 Figure 2 IP500 Laser Diode Pin Codes Figure 3 Mechcanical Drawing ...

Page 13: ... 3 5 VDC In J5 3 ILIM Adjust J2 1 LDA or LDC J5 4 IALARM J2 2 Ground LDC or LDA J5 5 PLIM Test Point TP J2 3 PD Cathode J5 6 PLIM Adjust J2 4 PD Anode J5 7 Alarm J3 0 10 VDC Modulate In J5 8 PMON Test Point TP J4 1 Enable J5 9 P I Adjust J4 2 Ground J5 10 Enable J4 3 Keylock J5 11 IMON Test Point TP J4 4 Ground J5 12 2 5 Vref J4 5 Inhibit JMP3 1 Ground J4 6 Ground JMP3 2 PD Cathode ...

Page 14: ...horlabs products such as Pure OEM products that means assemblies to be built into a unit by the user e g OEM laser driver cards Components Mechanics and optics Left over parts of units disassembled by the user PCB s housings etc If you wish to return a Thorlabs unit for waste recovery please contact Thorlabs or your nearest dealer for further information Waste Treatment is Your Own Responsibility ...

Page 15: ...mation USA Canada and South America Thorlabs Inc sales thorlabs com techsupport thorlabs com Europe Thorlabs GmbH europe thorlabs com France Thorlabs SAS sales fr thorlabs com Japan Thorlabs Japan Inc sales thorlabs jp UK and Ireland Thorlabs Ltd sales uk thorlabs com techsupport uk thorlabs com Scandinavia Thorlabs Sweden AB scandinavia thorlabs com Brazil Thorlabs Vendas de Fotônicos Ltda brasil...

Page 16: ...www thorlabs com ...

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