Is a laser diode any different than a normal LED, other than the wavelength its emitting?  Or does it need to be modulated?
I have some OPV332, 2.2Vf and 7mA If, so running it from 3.3V it
would require a 160ohm current limit.  But it doesnt appear to
be emitting the anticipated red dot...

So, anyone played with these?


      
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