homemade green laser

ok so i saw this like not to long ago about a home made greenie. i thought it was to good to be true

http://forum.allaboutcircuits.com/showthread.php?t=5633
it does not look to hard to tell u the truth.

what do u guys think have any of i guys made one.
if so it there a easy tut on it.

isnt that how all green lasers are made? i dont think there is an actual green laser. its just an ir going through a crystal and outputting green. it would probably be the cheapest way to get a high powered green laser. you could probably do this yourself for around $60 rather than buying one for a few hundred dollars. the main thing would be the crystal. with the dx lasers 30mw seems to be about the most efficient otherwise all the extra mw comes out as ir.

There is a big IR diode, the IR light passes through two crystals and it becomes green light. The reason no body makes green lasers is because the crystals are really difficult to align.

ok i will do more research thanks for the help

I have looked all over the web and I can not find that kit.

JECS said:

isnt that how all green lasers are made? i dont think there is an actual green laser. its just an ir going through a crystal and outputting green. it would probably be the cheapest way to get a high powered green laser. you could probably do this yourself for around $60 rather than buying one for a few hundred dollars. the main thing would be the crystal. with the dx lasers 30mw seems to be about the most efficient otherwise all the extra mw comes out as ir.

Click to expand...

Yes that is how they are all made... It's why they are called DPSS lasers. But it goes through 2 crystals. And no, you can not do this yourself for $60. Maybe $600. 350mW of green is a lot, and the pieces necessary for that kind of output would be very expensive... KTP crystal, Nd:YVO4 crystal, Pump diode, IR filter, heat sink, maybe a TEC, a nice driver, lenses, power supply... A 5-20mW green might be more realistic for a couple hundred $$. But at that price... you may as well buy a leadlight for $40 and mod it. Building your own green laser is kinda impractical, but it would be good for learning experience.