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Summary of Contents for THORLABS IP250-BV
- Page 1 IP250-BV 250 mA Blue Laser Diode Controller User Guide...
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Page 2: Table Of Contents
IP250-BV Blue Laser Diode Controller Table of Contents Chapter 1 Overview ................1 1.1. Features ................ 1 Chapter 2 Setup and Operation ............2 2.1. Connections .............. 2 2.2. Operation .............. 3 2.2.1. Automatic Constant Current Control (ACC) ......... 3 ... -
Page 3: Chapter 1 Overview
Chapter 1: Overview Chapter 1 Overview The IP250-BV is a 250 mA (medium power), board level laser diode controller optimized for the higher operating voltages of the blue and the blue-violet laser diodes. The driver is in the form of a PCB assembly with provisions for mounting into other higher-level assemblies. -
Page 4: Chapter 2 Setup And Operation
Connections Wiring harnesses have been provided to make the proper connections from the IP250-BV to its power source and the laser diode to be driven. One harness has a three-pin connector mate the other has a four-pin connector mate. The wire harness made with the 3-pin connector should be connected to J1 of the IP250-BV and the ±12 V power supply. -
Page 5: Operation
IP250-BV Blue Laser Diode Controller Chapter 2: Setup and Operation Figure 1 Laser Diode Connections 2.2. Operation 2.2.1. Automatic Constant Current Control (ACC) This board will only work with laser diodes with grounded cathodes. Set JMP2 to “ACC” for Constant Current operation. JMP2 is located on the left side of the unit. - Page 6 IP250-BV Blue Laser Diode Controller Chapter 2: Setup and Operation Using a digital multimeter measure the ILIM Test point with respect to the TP GND Test point (all measurements will be with respect to TP GND). Adjust the ILIM ADJ potentiometer for the maximum current that the laser must be limited to.
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Page 7: Automatic Constant Power Control (Apc)
IP250-BV Blue Laser Diode Controller Chapter 2: Setup and Operation While operating in APC Mode, if the power is adjusted to its maximum limit then the injection current will not increase even though the potentiometer has more adjustment. 2.2.2. Automatic Constant Power Control (APC) Photodiode feedback current is required in APC Mode. -
Page 8: 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 IP250-BV. It is recommended that the unit be configured to operate in ACC mode whenever analog modulation is used. -
Page 9: Remote Control Inputs
2.2.4. Remote Control Inputs In addition to the automatic shutdown features, the IP250-BV also has a number of remote enable and lockout functions accessible on J4 of the unit. The standard unit provides a shunt jumper installed in J4 Pins 5-6. This is the remote lockout input and must be shorted in order for the unit to be ENABLED. -
Page 10: Remote Monitoring
Thorlabs engineer for more specific information on using these connections. 2.5. Accessories The IP250-BV is shipped with the wire harness mates for J1 and J2. You may purchase spare or replacement harnesses from Thorlabs as well as a suitable wire harness for J4. The part numbers are listed below:... -
Page 11: Chapter 3 Specifications
IP250-BV Blue Laser Diode Controller Chapter 3: Specifications Chapter 3 Specifications Specification Value Input Power ±12 VDC @ 275 mA Constant Current Mode Control Range 0 to ±250 mA Setting Accuracy ±0.5 mA Compliance Voltage >8.0 VDC Ripple and Noise (10 Hz - 10 MHz) <10 μA RMS... - Page 12 IP250-BV Blue Laser Diode Controller Chapter 3: Specifications 0.150" (3.81 mm) 2.500" (63.50 mm) 0.150" (3.81 mm) 0.150" 0.150" (3.81 mm) (3.81 mm) 5.000" (127.0 mm) 1.125" (28.58 mm) 0.250" (6.36 mm) 0.25" Hex Standoff, 4 Places #4-40 Femail Thread 0.187"...
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Page 13: Chapter 4 Output Derating Curves
IP250-BV Blue Laser Diode Controller Chapter 4: Output Derating Curves Chapter 4 Output Derating Curves Since the IP250 is intended for use with blue or blue – violet laser diodes it is optimized to operate with lasers that develop >5 V of load voltage (V ). -
Page 14: Chapter 5 Regulatory
Waste Treatment is Your Own Responsibility If you do not return an “end of life” unit to Thorlabs, you must hand it to a company specialized in waste recovery. Do not dispose of the unit in a litter bin or at a public waste disposal site. -
Page 15: Chapter 6 Thorlabs Worldwide Contacts
Chapter 6 Thorlabs Worldwide Contacts For technical support or sales inquiries, please visit us at www.thorlabs.com/contact for our most up-to-date contact information. USA, Canada, and South America UK and Ireland Thorlabs, Inc. Thorlabs Ltd. sales@thorlabs.com sales.uk@thorlabs.com techsupport@thorlabs.com techsupport.uk@thorlabs.com Europe Scandinavia... - Page 16 www.thorlabs.com...
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