artix
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I have wondered what kind of crystals are in Red DPSS lasers and violet DPSS lasers Does any body know how these lasers work? :-?
AWESOME!(?) But isn't it better to just use a diode?FrothyChimp said:671nm red DPSS is a SHG of 1342nm minor lasing line of Nd:YAG or Nd:YVO4.
Murudai said:DPSS gives much better beam specs than diode lasers do.
If you've got a greenie (which is DPSS) and a red (which is almost always a diode) then put them together and compare the beam specs. The greenie should have a tighter beam and better divergence.
Artix said:[quote author=Murudai link=1219620570/0#5 date=1219640151]DPSS gives much better beam specs than diode lasers do.
If you've got a greenie (which is DPSS) and a red (which is almost always a diode) then put them together and compare the beam specs. The greenie should have a tighter beam and better divergence.
Artix said:But isn't it better to just use a diode?
FrothyChimp said:for a hobbyist a diode is fine but what is the beam quality (M[sup]2[/sup]) value of a 671 DPSS versus a red diode? 1.2 versus about 20. Beam quality generally sucks using a diode.
435nm is very inefficient (a new SHG type so very low power). They are really novelty items at this point.