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Old 12-13-2016, 03:37 PM #33
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Default Re: 583.8nm and 589nm, the golden brothers

Bought a 3x3x5 KTP for 594.3, according to the seller. Now to figure out how to drive it to produce yellow, help? The wavelength is a bit different.

High Power Coherent Yellow KTP Crystal Optic 594.3nm "VERY RARE" | eBay


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Old 12-13-2016, 03:39 PM #34
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Default Re: 583.8nm and 589nm, the golden brothers

You need a Nd:YVO4 crystal coated for both 1064nm and 1342nm. Then pump with a 808 like normal.
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Old 12-13-2016, 03:51 PM #35
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Default Re: 583.8nm and 589nm, the golden brothers

Oh that would be great, very straight forward that way, except for oven.
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Old 12-13-2016, 03:55 PM #36
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Default Re: 583.8nm and 589nm, the golden brothers

It should be straight forward. Will just take careful phase matching, and expect a low efficiency. The crystal is labelled 594.3 nm, but 1064+1319 is actually 593.5 nm. The crystal coatings won't be too specific, so should have no problems getting output once orientated correctly.
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Old 12-13-2016, 04:19 PM #37
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Default Re: 583.8nm and 589nm, the golden brothers

I thought 1342nm? 1319??
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Old 12-13-2016, 04:25 PM #38
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Default Re: 583.8nm and 589nm, the golden brothers

No, 1319 is for the 589's. And would then involve a Nd:YAG rather than Nd:YVO4. And the coatings on the crystals probably wouldn't allow that wide a range of IR.

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Old 12-13-2016, 04:26 PM #39
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Default Re: 583.8nm and 589nm, the golden brothers

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Originally Posted by Alaskan View Post
I thought 1342nm? 1319??
It seems to be a mistake - 593.5 nm corresponds to 1342 nm + 1064 nm of course.
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Old 12-14-2016, 03:32 PM #40
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Default Re: 583.8nm and 589nm, the golden brothers

Good post on the subject here: Review of a Yellow (593.5nm) DPSS Laser Module
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Old 12-15-2016, 08:32 PM #41
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Default Re: 583.8nm and 589nm, the golden brothers

Found this on ebay, now to figure out a way to put an oven in it for my yellow coherent 3x3x5mm KTP and room for a YVO4 crystal. I found a 4 watt wavelength locked 808nm C-Mount laser diode cheap, so I won't have to mess around with a TEC for the diode. This already has an unknown KTP in it where the white tape is.



Backup plan is to just use this for a 532nm green KTP, if it doesn't work out for the yellow crystal.
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Old 12-16-2016, 01:18 PM #42
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Default Re: 583.8nm and 589nm, the golden brothers

Hello everyone, I wanted to see if yall could help me with selling me a blue 2w laser or know someone who can build me one. Plz and thank you!
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Old 12-16-2016, 01:26 PM #43
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Default Re: 583.8nm and 589nm, the golden brothers

Quote:
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Hello everyone, I wanted to see if yall could help me with selling me a blue 2w laser or know someone who can build me one. Plz and thank you!
You may want to introduce yourself in the welcome section first, before you post a off-topic request on a random thread.
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Old 12-16-2016, 04:28 PM #44
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Default Re: 583.8nm and 589nm, the golden brothers

Ok I just did, it's kind of hard to navigate thru all this haha.
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Old 12-16-2016, 04:31 PM #45
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Default Re: 583.8nm and 589nm, the golden brothers

No problem.
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Old 12-16-2016, 05:04 PM #46
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Default Re: 583.8nm and 589nm, the golden brothers

I feel like I'm on FB looking for a like on this thing:


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"I regard consciousness as fundamental. I regard matter as derivative from consciousness..." - Max Planck. "Everything we call real is made of things that cannot be regarded as real" - Neils Bohr. "What we call physical things and events do not exist independently of subjective experience..." - Deepak Chopra.

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Old 12-16-2016, 05:07 PM #47
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Default Re: 583.8nm and 589nm, the golden brothers

I've never seen a something so elaborate, but I like it.
You should be able to use it for your yellow. But it may be worth using it for a high quality green instead.
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Old 12-16-2016, 05:26 PM #48
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Default Re: 583.8nm and 589nm, the golden brothers

For green, I have two of the 4 watt rated wavelength locked 808nm C-Mount diodes I could PBS combine to drive a crystal harder and produce a lot of green, don't know how stable it will be in this kind of frame unless I find a way to control the temperature of the crystal holder, or perhaps the whole thing inside a temperature controlled aluminum tube. I think this is one of the most awesome things I've seen for a home built DPSS project, well, sort of home built, most of the work is done if using this.
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Sincerely investigate any of these three short quotes as new concepts and you've taken your first step into a larger world:

"I regard consciousness as fundamental. I regard matter as derivative from consciousness..." - Max Planck. "Everything we call real is made of things that cannot be regarded as real" - Neils Bohr. "What we call physical things and events do not exist independently of subjective experience..." - Deepak Chopra.

Each of these three rabbit holes go deep, ending up in the same place.

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