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ArcticMyst Security by Avery

buying a 532nm or 650nm diode

Joined
Jun 10, 2007
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22
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Hi im new on the forum. I just got into lasers. I need  a 532nm or 650nm diode to make my own laser thanks :)
 





Joined
Oct 24, 2006
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What type of power are you looking into and for what purpose? Lots of people pull 80mW+ red diodes from DVD writers and overdrive them in the 100-200mW+ range. Not to mention a few group buys by people like SenKat and Dr. Lava.

For green though you'd need to buy a module. Green diodes aren't really feasable yet and the only way to get green is by a DPSS (diode pumped solid state) process in which, as Greenie alluded to, a pump diode causes other crystals to lase so that you get a 532nm green output.
 
Joined
Jun 10, 2007
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i got the idea from someone on youtube and he said use either a 532 or 650nm diode
 
S

SenKat

Guest
Ah, yes....the you tube videos ! Some of those DIY vids are kinds scary - hooking a red diode up to straight batteries and relying on the internal resistance of the batts is kinda like playing craps.....
 
Joined
Jun 10, 2007
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i allready bought the lenses and casing from AixiZ Lasers and a battery pack from radio shack
 
S

SenKat

Guest
You CAN hook them up that way, I just do not recommend it - it will shorten hte life of the diode considerably ! Are you planning on harvesting a diode from a dvd-burner ? That will most likely give you the best bang for your buck -
 
S

SenKat

Guest
You are better off building one - the boards cost quite a bit form other sources - Meredith Instruments have a few different types, at about $20 each, that is a little steep in my book !
 




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