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Laser Diode Housing from Hardware Store Parts
April 5th, 2011 | 
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Laser Diode Housing, MacGyver'ed. The focus is not THAT horrible, the camera picked up too much splatter.
Laser diode on a chip with PD arrays (front)
Laser diode on a chip with PD arrays (back)
It’s a weird looking laser diode (LD) that is mounted in the same case with the photodiode arrays which makes for simplified optics but I did not have any housing for this shape/size diode. By the way, if anyone reading this knows a professionally made housing for this type of LD, please post a comment with the reference, I would greatly appreciate that. The diode is just slightly smaller than your more standard 9mm LD – it’s smaller diameter is 6.50mm and the larger diameter is 8.25mm so it fits neither 5.6mm nor 9mm standard size housings.
This made me think that I may not be the only one stuck without a proper housing for a laser diode and I decided to see what it would take to build a housing for a laser diode out of parts available only in the disassembled drive itself and in a local hardware store. Here is what came out
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