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Hey guys, I have some A-140 diodes that I am going to hook up to their drivesr soon. My question is why are there three pins? Normally I know you only connect two, but I am wondering if the third pin can be used to protect the diode in some way? Thanks, John

Hey guys, I recently ordered a 808nm 300mW laser. I also have an old 650-g-1 lens. I am wondering if the 650-g-1 lens will be worth using on an IR laser, since it is about 150nm off. Any information is appreciated, John

Hey guys, I just finished putting together a .2-2A current source for use with most lasers. The source will run off of any 18V laptop charger. I have tested it many times in PSpice and also used an oscilloscope to verify that there are no large current. Here is a schematic along with a...

Hey guys, I am working on a driver for the 445nm A140 (harvested from a casio projector). I am wondering if anyone has tried pulsing this diode at higher than recommended currents at high frequencies. Does anyone know what the maximum current ratings are; and if the laser would be more...

Hey guys, I am building a driver now for the LPC-815. My idea is to use two constant sources both drawing current through the laser diode, one at 15mA and one between 400-600mA. The idea is to have the 15mA source constant while turning the 400-600mA source on and off at a constant frequency...