Old 08-13-2009, 02:17 AM #1
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Default FS: Laser Diode Test Bed with driver

This is a laser diode testing device. It is powered by an AC to 9v DC 500 mA wall adapter. The unit has an on/off switch as well as a large heat sink for testing or running laser diodes. The heatsink is designed to accept an Aixiz module then hard wire it to the power unit via the white/blue wires. The self contained power unit provides 0 to 1000 mA's of power to the diode. It has an adjustable pot on the back to change the power settings. To make it more of a portable unit I added a Thorlabs laser driver connector with an anti-static circuit board built in. It also has a 3 prong adapter at the end so a diode will plug right in. I used it to test multiple diodes prior to making the final connections to a host. I also used it to test the maximum power a diode could produce by slowing advancing the power adjustment screw. I will also include a home made load tester which is nothing more then 4 1N4001 diodes and a resistor so you can adjust the unit to the correct power before connecting your laser diode. If you have any questions please PM me. I paid about $85 for the test unit and the Thorlabs connector with adapter was another $30 or so. I will accept $65.00 shipped free in the US. Paypal preferred.
Picture of the Laser Diode tester

Another side view

Bottom view showing electronics and adjustment screw

Picture of Thorlabs instructions for the connector


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Old 08-18-2009, 01:12 AM #2
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Default Re: FS: Laser Diode Test Bed with driver

Shameless bump and price drop to $50.00 shipped in the US free. Paypal is acceptable...
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Old 08-22-2009, 03:04 PM #3
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Default Re: FS: Laser Diode Test Bed with driver

PM me, i want it
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