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FrozenGate by Avery

yellow lasers?

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does anyone know where to get a good quality/ good priced yellow laser?
 





oh, and does a yellow laser require more crystals than a green?
 
Laserglow or Dragonlasers. From what I understand, the manufacturer of both companies' lasers, CNI, only makes a 2mw yellow pen. Given that info, I wouldn't risk getting the 5mw from Dragonlasers, because on the CNI site it's self, they say that there isn't a 5mw pen.

DL and LG are asking the same price for their lasers, but DL is the only one with lasers in stock right now IIRC.

And yes, the yellows are more complicated. I honestly don't recall the numbers and I'm too lazy to look it up, but the yellow uses a 1064 and 1300-some nm IR beams for a sum frequency beam of 594 yellow, which is more complicated than the green's frequency doubled 1064 diode because it has to make two IR beams instead of just one.
 
I think the primary difference is the coatings on the "crystals"  The YVO4 is going to output both IR in 1064 and ~1342*  nm, (Idon't remember exact nm) so it would be important to have the coatings allow the longer IR to exit the YVO4 and to enter the KTP.  Also note, YVO4 is amorephos, so I use the term crystal loosly.  I would only consider LG for these 594 nm lasers currently!  btw jump in on my GB, even if the cost is near the same (10% off)  You still get a free gift.  hint: YVO4 has other interesting optical proberties.
 
scopeguy20 said:
I think the primary difference is the coatings on the "crystals"  The YVO4 is going to output both IR in 1064 and ~1345*  nm, (Idon't remember exact nm) so it would be important to have the coatings allow the longer IR to exit the YVO4 and to enter the KTP.  Also note, YVO4 is amorephos, so I use the term crystal loosly.  I would only consider LG for these 594 nm lasers currently!  btw jump in on my GB, even if the cost is near the same (10% off)  You still get a free gift.  hint: YVO4 has other interesting optical proberties.
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If you have a GB for 594s, PLEASE point me in that direction! I'm buying a 594 and a 473 here in the next couple weeks!
 
scopeguy20 said:
jump in on my GB, even if the cost is near the same (10% off) You still get a free gift.
Click to expand...

I don't know about you, but I haven't paid for a gift in quite a while.
 
scopeguy20 said:
I think the primary difference is the coatings on the "crystals" The YVO4 is going to output both IR in 1064 and ~1345* nm, (Idon't remember exact nm) so it would be important to have the coatings allow the longer IR to exit the YVO4 and to enter the KTP. Also note, YVO4 is amorephos, so I use the term crystal loosly. I would only consider LG for these 594 nm lasers currently! btw jump in on my GB, even if the cost is near the same (10% off) You still get a free gift. hint: YVO4 has other interesting optical proberties.
Click to expand...

Yes, 593/4nm DPSS lasers use same crystal set like green and blue. but with different coating. When pumped by 808nm diode, Nd:YAG is specially coated to lase both at 1064nm and 1342nm. When the two are frequency doubled when passed through KTP, you get sum-frequency generation" to produce 593.5nm

Also, this process is very inefficient and unstable by this nature, so crystals have to be of greater quality and size in order to produce only few milliwatts of this color.
Here is LaserGlow Vega-10 reviev I did few months ago. I recommend buying as high output as you can afford because there big difference in visibility in this 2-10mW range if its only 1-3mW higher or lower.
http://www.laserpointerforums.com/forums/YaBB.pl?num=1197932634
 
wait blue lasers have crystals? :-? u must be talking of blue lasers and not blu ray lasers :P
 
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