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Old 04-24-2017, 05:18 PM #49
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Default Re: K301V 125W CW Nd:YAG pumping chamber for sale

Easier: Coherent Taipan-577-5-C OPSL Laser Yellow Color | eBay


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Old 04-24-2017, 05:28 PM #50
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Default Re: K301V 125W CW Nd:YAG pumping chamber for sale

Quote:
Originally Posted by Alaskan View Post

$11,000 just for the head? No power measurements or any sorts of tests? No thanks ... should be doing a few watts, a picture running at full power would be a good start.
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Old 04-24-2017, 05:31 PM #51
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Default Re: K301V 125W CW Nd:YAG pumping chamber for sale

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Everything a trade off!
yes, as is most eveything when it comes down to it.

There are certianly a surprising number of papers by people who have tackled the problem in several different ways, out there.

If you have a design A and B that will work in mind pretty much ready to roll--you can jump on parts when they become available on secondary market --only having to buy new maybe a few critical pieces while doing something a bit more common and easier along the way.
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Old 04-24-2017, 07:28 PM #52
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Default Re: K301V 125W CW Nd:YAG pumping chamber for sale

Quote:
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$11,000 just for the head? No power measurements or any sorts of tests? No thanks ... should be doing a few watts, a picture running at full power would be a good start.
I wrote him and said the same thing, good luck selling that without any tests indicating power and beam quality.

Encap, I'm going to be searching for the parts needed, optics and crystals difficult to find unless new. I better get off of this topic in this thread, already gone too far.
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Old 04-24-2017, 09:08 PM #53
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Default Re: K301V 125W CW Nd:YAG pumping chamber for sale

Thanks, Chris for the opinion on a totally unrelated project. The prices some eBay sellers come up with are insane sometimes. I can't see anyone spending $11,000 for a head with no beam specs, power, etc. Maybe after a few weeks you can take another run at him about this yellow head.
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Old 05-03-2017, 07:18 AM #54
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Default Re: K301V 125W CW Nd:YAG pumping chamber for sale

minus 50$!

130W Nd:YAG Laser Cavity (pumping chamber, core) K301V | eBay
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Old 05-20-2017, 10:06 AM #55
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Default Re: K301V 125W CW Nd:YAG pumping chamber for sale

K107 4J pulsed pumping chamber is sold. All other items are stil on sale. Also I'd like to sell mu JDSU 2213 air-cooled 150 mW multiline Argon laser. Is anyone interested in it? It is #7 in my laser collection thread.
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Old 05-20-2017, 08:40 PM #56
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Default Re: K301V 125W CW Nd:YAG pumping chamber for sale

The concern I have is if that YAG rod is damaged, I doubt I could afford to replace it.
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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.

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Old 05-23-2017, 06:05 PM #57
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Default Re: K301V 125W CW Nd:YAG pumping chamber for sale

bump 130W Nd:YAG Laser Cavity (pumping chamber, core) K301V - says in Switzerland!
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Old 05-23-2017, 07:15 PM #58
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Default Re: K301V 125W CW Nd:YAG pumping chamber for sale

Quote:
Originally Posted by Alaskan View Post


IDK. For an untested 1064 pumping chamber that still needs the HR and OC mirrors, the price seems a bit high to me. As noted, if the YAG is damaged, it might be very expensive to replace if you could even find it.
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Old 05-23-2017, 07:21 PM #59
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Default Re: K301V 125W CW Nd:YAG pumping chamber for sale

I know of one other laser parts seller in Ukraine listing his stuff as being shipped from Sweden, probably sell faster if people see a listing from a more developed country, Ukraine with its reputation for hackers and internet rip off artists might be affecting the ability for some sellers on ebay to do business, so I expect that is why the listing now says Switzerland. No issue with me buying from Ukraine, I have an apartment there now

One other thing about this laser is when I look at the photo's the rod appears to have some kind of corrosion on it, or at least the white appearing material near the metal ends on the rod looks like corrosion, that is probably another reason it isn't selling. Maybe it isn't corrosion, but without higher resolution photo's, I just can't see.
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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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Old 05-23-2017, 07:34 PM #60
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Default Re: K301V 125W CW Nd:YAG pumping chamber for sale

This pumping chamber was in action here https://youtu.be/xsPtM0ok_hU at 50% of power, if anyone wants to know. If anyone wants it a can add for free a set of mirrors both HR and T=20% OC but I don't garantee the maximum 130W power with them.
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Old 05-23-2017, 07:43 PM #61
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Default Re: K301V 125W CW Nd:YAG pumping chamber for sale

I hope no offence with my last post, I love the people of Ukraine, my son in law lives there and I will retire there. That is an awesome video of the YAG working, what was it you were doing, holding a focus lens? Looked scary to me to hold like that.
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Old 05-23-2017, 08:44 PM #62
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Default Re: K301V 125W CW Nd:YAG pumping chamber for sale

Sorry to kinda derail this thread again, maybe we need to start a DPSS general thread.

Anyway, Alaskan, if you want 589nm out of this it's going to be a real challenge. Since it's going to be operated in a pulsed mode, you want an NLO crystal with a large phase-matching bandwidth. Also, you really want a folded cavity, since Nd:YAG does absorb visible light, especially in the 580-600nm region.

Nd:YAG also has two dominant transitions from the upper laser level to the 4I(13/2) manifold, 1319nm and 1338nm, as opposed to the 4F(3/2) -> 4I(11/2) transition for 1064nm, which is the only one (actually there are more (12?) but the 1064/1062 transitions are extremely dominant). 1319nm is only about 1/3 as prominent as 1064nm, so you will need to design a resonator that suppresses 1064nm (but doesn't eliminate it), and promotes 1319nm to a level where they are equal. This is incredibly hard to do, as 1064nm will quickly begin to dominate if given the opportunity. You also can't use cheaper broadband optics, because you need to completely suppress 1338nm (though this could also be done with an etalon, it would eliminate 1064nm).

There is a LOT more to factor into consideration as well, but if you're up to the challenge, I'm pretty sure everyone here would love to see a high powered 589nm.
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Old 05-23-2017, 08:53 PM #63
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Default Re: K301V 125W CW Nd:YAG pumping chamber for sale

Quote:
what was it you were doing, holding a focus lens?
I was just trying to make a hole in a brick)))
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Old 05-23-2017, 09:55 PM #64
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Default Re: K301V 125W CW Nd:YAG pumping chamber for sale

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Originally Posted by Laserbuilder View Post
I was just trying to make a hole in a brick)))
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