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Thread: non liner analog modulation

  1. #11
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    Quote Originally Posted by dkumpula View Post
    Did you test it with a meter to determine if it had plateaus? Also, I've never seen a 532nm that didn't jellybean at the very low end. In any case, a tiny 520nm diode as opposed to a big 532nm/473nm DPSS with TECs and tiny fans screaming away? No contest, IMO. That said, my 473nm DPSS units had beautifully tight beams. Definitely blowing away the 450nm/473nm single mode diodes.

    That green you found is intriguing. Its half the price of a single mode 520nm diode and has about the same output. I wonder how challenging it would be to combine two in this configuration.

    Where did you find a 473nm single mode diode? I did not know they had them at that wavelength, the closest I have is 490nm and so love that color, I have a 473 DPSS but only does about 4mw and the beam looks horrible, don't know if that is the pump failing or a crystal problem?
    Polk SDA SRS, Parasound HCA 3500, Luxman M117, Onkyo 504, 7.62X39, sometimes a ball on a string is the greatest of toys for us nonhuman types. oh and some lasers, lots of lasers

  2. #12
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    Quote Originally Posted by Draco View Post
    Where did you find a 473nm single mode diode? I did not know they had them at that wavelength, the closest I have is 490nm and so love that color, I have a 473 DPSS but only does about 4mw and the beam looks horrible, don't know if that is the pump failing or a crystal problem?
    About a year ago, there was a batch of ~473nm diodes that were sold. I don't recall the backstory exactly, but they appeared to be a one-off batch. I picked up one from a lot that Lazerman121 acquired and another from Kecked. Hopefully they will show up again someday (for a reasonable price).

    -David
    "Help, help, I'm being repressed!"

  3. #13
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    465nm is getting rare too. If you want something above 445nm you should grab it soon. I think the 490-510 stuff is going away too. The 520 stuff after that as 530 comes on line.

  4. #14
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    yeah I blew 465 and am having problems finding one, DRT no longer has it and last check on e-bay netted nothing, I like the color from a 465 better then 450 and love the 490's
    Polk SDA SRS, Parasound HCA 3500, Luxman M117, Onkyo 504, 7.62X39, sometimes a ball on a string is the greatest of toys for us nonhuman types. oh and some lasers, lots of lasers

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