Got this on ebay, milled the lid off to see what's inside.
I haven't figured out the circuit with the inductor and, possibly, a parallel-plate capacitor. Bias tee?
The laser and feedback photodiode are apparently sitting on a TE cooler and maybe a BeO insulator block.
-- John Larkin Highland Technology, Inc jlarkin at highlandtechnology dot com http://www.highlandtechnology.com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom laser drivers and controllers Photonics and fiberoptic TTL data links VME thermocouple, LVDT, synchro acquisition and simulation
I would say a TEC is in there , it?s a Type 2. pins 6&7 are the TEC. Your pictures don't show them well.
Cheers
Probably a bias tee. There's a standard pinout that has the LD connected via an inductor to one pin, and a resistor to another. The last one I used was like that.
Cheers
Phil Hobbs
-- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC Optics, Electro-optics, Photonics, Analog Electronics 160 North State Road #203 Briarcliff Manor NY 10510 845-480-2058 hobbs at electrooptical dot net http://electrooptical.net
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