Laser diodes.

Felino · Post by **Felino** » Sat Jun 23, 2007 1:10 am

How does one use one?

I have a 10mv red one here, it has 3 pins. I know i will need current limiting, but what?

The only info i have here is that it needs 45mA @ 2.3 volt.

Post by **Sparkfist** » Sat Jun 23, 2007 6:59 am

You should be able to set up a circuit that only outputs 2.5v to the diode. As for current like any electrical device it should only draw what it needs, which according to the info you supplied is only 45mA.

As for the three pins, obviously one is power, one is ground. the third could be a second ground, a data line, or something else. If you have any more information about it like manufacture, model number and such you should be able to find out.

daguuy · Post by **daguuy** » Sat Jun 23, 2007 8:35 am

http://www.felesmagus.com/pages/lasers-howto.html

Felino · Post by **Felino** » Sun Jun 24, 2007 4:42 am

The datasheet was the issue, i found it now anyway, under the bed

Thanks, i now have a 10mW laser that blinda you, and the 3rd pin is the reciever.

Thanks guys!