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green laser pointer

Swordofsalvation

Swordofsalvation

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Joined
Nov 30, 2008
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I want to build a cheap, but efficent and sturdy green laser that i can use for night time pointing. I just need a reliably visible beam. i was thinking at least 20mws, but what diode would you guys suggest? and what driver? and what host? I want to make it cheaper than 40 dollars, if at all possible(i like jayrob's build, but its out of my price range at the moment.
 





ndrew2505

ndrew2505

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Joined
Feb 23, 2008
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2,832
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good luck building a green for less than 40$. your best bet is to get one from dx or kd.
 
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ElektroFreak

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Nov 7, 2008
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According to o-like.com, their YVO[sub]4[/sub] crystals lack the Nd doping that makes them so useful as a lasing medium. Without Nd doping, YVO[sub]4[/sub] is useful as a filtering/polarizing crystal, but will not lase. I'll be a bit more excited when they start carrying Nd:YVO[sub]4[/sub] and Nd:YAG plus LBO, BBO, BiBO, or LiNBO[sub]3[/sub] for making colors other than green...
 
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The_Muffin_Man

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Oct 27, 2008
Messages
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ooooooor if you got a 5mW module..(im thinking under $40 here...) and a newwish pen style (you can just buy the case on ebay or jake sells leadlight cases for 10$) then that will be under $40...its only 5mW though...i bought an 80~100mW module from her and its really nice...very visible beam and goes really far too :D
 
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