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Old 05-15-2013, 04:09 AM #1
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Default Cheap 808nm diodes?

I'm looking for a few 800mW (or higher) 808nm diodes in a 9mm or 5.6mm package for pumping. The best deal I've found on ebay is 25$ shipped. Is there anywhere I can get them cheaper?

They don't have to be great, I can deal with unstable wavelength and unstable powers.


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Old 05-15-2013, 04:25 AM #2
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Default Re: Cheap 808nm diodes?

Im curious as to what you're pumping.
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Old 05-15-2013, 04:37 AM #3
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Default Re: Cheap 808nm diodes?

Various crystals I've acquired but done nothing with. I have two sets of 473nm crystals plus many, many sets of 532nm crystals from all sorts of lab lasers and pointers.

Up until this point multi-diode systems and projectors have consumed my attention, I still have a few projects I need to do in that area but then I'm done.
Time to move onto a new area of lasers, and DPSS has always interested me I've already got some projects lined up, growing my own crystals, a DIY 473nm handheld, a DIY high stability 532nm lab laser, direct doubling 530nm handheld ect.

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Old 05-15-2013, 04:40 AM #4
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Default Re: Cheap 808nm diodes?

Im in the proccess of building, or trying to build, a TEC/water cooled lab 532. I need YVO4 and KTP. Pump diode is 10W. Have any crystal sets you wouldnt mind selling capable of that type of input? Will be activley cooled of course.

Edit: YAG would probably be better and more efficient if I remeber correctly.
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405nm Lazerer Polished Rifle 688mW
445nm Kryton Groove 1.6W~Sinner 3.3W
450nm Guidesman 1.2W
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473nm PL-E Pro 15mW
476.5nm ML Argon
488nm Uniphase Multi-Line Argon 48mW/73mW in current control;
496.5nm ML Argon
501.7nm ML Argon
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532nm SkyRay King Gre3n 35mW/60mW/70mW~Phobos Fasttech 70mW~Optotronics RPL-500 450mW~JetLasers Ti B 170mW
543.5nm Bare tube HeNe ~3mW (Nightstand lamp)
632.8nm Bare tube HeNe ~3mW~Bare tube HeNe Multimode 12mW (Desk Lamp)
638nm Mrcrouse Custom 650mW
658nm wannaburnstuff baby shower gift? 127mW
808nm Coherent CCP 10W

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Last edited by Speedy78; 05-15-2013 at 04:43 AM.
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Old 05-15-2013, 04:47 AM #5
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Default Re: Cheap 808nm diodes?

I do have one set from a dead lab laser that can take that input but I am saving it for my own build, sorry

There used to be some great crystal sets on ebay, the KTP and YVO4 were already aligned and you just had to put 808nm in one side and watch 532nm come out the other. Not sure if they are avaliable anymore, but they would work well for your system.
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Old 05-15-2013, 04:50 AM #6
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Default Re: Cheap 808nm diodes?

They were capable of a 10W pump? Because thats the issue im having with ebay crystals is they are all low quality low powered. Id like to keep it a seperate crystal build for cooling purposes. I already melted a combined se from a 5mW pen Every once and I while I find a used crystal but they all seem to be damaged or something. I guess ill keep an eye out
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405nm Lazerer Polished Rifle 688mW
445nm Kryton Groove 1.6W~Sinner 3.3W
450nm Guidesman 1.2W
457.9nm ML Argon
473nm PL-E Pro 15mW
476.5nm ML Argon
488nm Uniphase Multi-Line Argon 48mW/73mW in current control;
496.5nm ML Argon
501.7nm ML Argon
514.5nm ML Argon
532nm SkyRay King Gre3n 35mW/60mW/70mW~Phobos Fasttech 70mW~Optotronics RPL-500 450mW~JetLasers Ti B 170mW
543.5nm Bare tube HeNe ~3mW (Nightstand lamp)
632.8nm Bare tube HeNe ~3mW~Bare tube HeNe Multimode 12mW (Desk Lamp)
638nm Mrcrouse Custom 650mW
658nm wannaburnstuff baby shower gift? 127mW
808nm Coherent CCP 10W

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Old 05-15-2013, 05:05 AM #7
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Default Re: Cheap 808nm diodes?

Ah, my bad they can only do 5W.
First crystal set.

Try and find a broken 532nm lab laser on ebay or PL, the beefier DHOM's have good crystals in them. Quite often the diode will die, or the regulation is a little off and the crystals are still good.

Last edited by ARG; 05-15-2013 at 05:05 AM.
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