[Laser] Driver circuits? ZD1954 10mW

Fri, 19 Dec 2003 18:11:42 +1100

There's no laser hobbyist resource quite as useful as Sams:
http://www.repairfaq.org/sam/laserdps.htm#dpstoc

Kevin Forbes wrote:
> Hi folks, I am requesting a bit of help regarding finding a suitable 
> circuit to drive a laser diode that I have recently come across 
> purchased and would like to experiment with. I purchased it from Jaycar 
> Electronics in Australia, it s a 10 mW ZD1954,655nm TO18 supplied with a 
> collimating lense. I did read somewhere that the supplied lense is not 
> much chop, anyone support this? Should I or is it O.K. to make a driver 
> circuit like the following, a variable voltage regulator at 2.3 volts in 
> line with another voltage regulator wired up as a current limiter for 
> 30-45 mA operating, 60 mA MAX? Oh, and bye the way, I'd better ask how 
> to utilise the built in photo diode properly while I'm at it.
> Cheers folks and thanks in advance. Kevin Forbes, VK3UKF.
> 
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