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Cool, look forward to seeing the upgrade.
and YES, you can't find one anywhere! I'm still looking.
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Would anyone like to see a strange 532nm labby? - for $40 ;)
- Thread starter rhd
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Cool, look forward to seeing the upgrade.
and YES, you can't find one anywhere! I'm still looking.
rhd
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You guys need to have more faith in me 
Come on - I wouldn't kill a unique laser unless I had the intention of making it into something equally or more unique. I'll make you guys a promise - this laser's death will not be in vain.
Come on - I wouldn't kill a unique laser unless I had the intention of making it into something equally or more unique. I'll make you guys a promise - this laser's death will not be in vain.
Asherz
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Could you not replace the diodes without dismantling the whole thing? I think the point qumefox and Trevor were making is that you don't dismantle say a 532nm he-ne because it's inefficient
rhd
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Could you not replace the diodes without dismantling the whole thing? I think the point qumefox and Trevor were making is that you don't dismantle say a 532nm he-ne because it's inefficient
No. Each diode, as well as the crystal assembly have little hex adjustment screws for allowing slight refinement of the left/right positioning. However, they had been hot-glued (or epoxied) in place after the alignment was set. The only real way to get a crack at properly fixing alignment, or (in my case what I'm going to do) using new diodes, was to take it apart (which FYI, was really only a process of unscrewing ~4 things) and clean the gunk out of those adjustment "mechanisms".
And gosh, if I ever found a "532nm he-ne", you're right - I'd encase that behind glass and charge admission
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qumefox
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I'm curious. Are there any optics on the pump side before the PBS?
rhd
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Yep - both diodes have their own optics assembly which I left in place. Their optics relative to the PBS is still as-is. The diodes mount right up against lenses and have the hex screws I described as adjustment.
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high power 473 blue :eg:
Looks like it can seal up nicely. Just don't put it together by the kitchen sink
Looks like it can seal up nicely. Just don't put it together by the kitchen sink
qumefox
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Um. BBO is both more efficient and isn't hygroscopic like LBO (or do I have those reversed? Going from memory) If you want to build blue, no reason to use LBO.
Benm
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I must say its quite an interesting find - i've never seen a construction with 2 pump diodes like that in green labbies.
I wonder why it was so inefficient - perhaps something got misaligned, or you were supposed to control the temperature at well. Perhaps its still worth exploring with new pump diodes, sure looks like a well constructed piece of kit!
I wonder why it was so inefficient - perhaps something got misaligned, or you were supposed to control the temperature at well. Perhaps its still worth exploring with new pump diodes, sure looks like a well constructed piece of kit!
Bluefan
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It looks like a nice high quality laser, try to get it working again, that would be nice. Lucky you to find such a deal.
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