80 watt YAG - I broke it - Do'h

[LightningStalker]

Well, I'd say 100W of anything is very
impressive, especially for something built
from repaired parts and components by a
single person in a home lab. The fact that
it is SHG makes it even more impressive.

[masterpj]

The building in a home lab situation is most certainly impressive for coherent visible wavelength light that is... IR .. hmn while still pricey I feel like it's less special.
100watts of CO2 though is quite a bit more common and can be had for ~1000$ mark *tube only* for instance

Also I read back and saw simons pledge of keeping the information open. I do in a way respect that gesture that if he makes a mistake he can show the rest what not to do but it's good to keep some information closed so people who want to do things like this have to put more effort into getting it all together and not the wrong people that will misuse the technology can get their hands on it

[Laserman532]

Commercial Qswitched Green is available to 250-300 Watts. 600 Watts has been demonstrated in the lab environment. What is wrong with him having 106 Watts?
It is correct.
Steve

102 watts out of a surplus machine of any kind is impressive, for the most part every component must be perfect and ringing like a tuning fork. It is not easy to get 40, less on 80 (simons laser), less on 100...and he is showing on a power meter...i am impressed and if he tries to sell it...he may get $1500.00 for it LOL, and the person that buys it will break it in a week, won't have any spare parts and they will have a nice rolling cart of rocks. Very few folks have the ability to keep something like that running...at those levels...kudos

[logsquared]

102 watts out of a surplus machine of any kind is impressive, for the most part every component must be perfect and ringing like a tuning fork. It is not easy to get 40, less on 80 (simons laser), less on 100...and he is showing on a power meter...i am impressed and if he tries to sell it...he may get $1500.00 for it LOL, and the person that buys it will break it in a week, won't have any spare parts and they will have a nice rolling cart of rocks. Very few folks have the ability to keep something like that running...at those levels...kudos

TRUTH!!!!!!......

[Junktronix]

These PV machines are really amazing. The performance is so much better than the older type that I keep stopping to make sure everything is right. 60W @ 20A!? Yes, it's right. Lots of work to get going though. I have about 600 lines of Arduino code and will probably have twice that when I'm done. I haven't looked closely at beam characteristics, but it is definitely better.

[dsli_jon]

These PV machines are really amazing. ...I haven't looked closely at beam characteristics, but it is definitely better.

..'Better-than'... the 7/800's? Or, 'better, than when you first started' workin with it / stabilizing? And, I'm just guesstimating from yer pic, but it looks to me like about at least 15mm, perhaps approaching 20mm or more? Also, how is the 'stability', power-wise? And, whattaya sellin 'em for?

..Inquiring-minds wanna know..
j

[krazer]

Got some pretty impressive results tonight

Attachment 45426

Oh my it must be that season again. Need to keep warm somehow in this cold!

[planters]

Krazer,
What is that?

Junktronix,

What are the beam characteristics? If 600 lines of code are needed to get that kind of power running then what do you think you need so much more code for?

102 watts out of a surplus machine of any kind is impressive, for the most part every component must be perfect and ringing like a tuning fork. It is not easy to get 40, less on 80 (simons laser), less on 100...and he is showing on a power meter...i am impressed and if he tries to sell it...he may get $1500.00 for it LOL, and the person that buys it will break it in a week, won't have any spare parts and they will have a nice rolling cart of rocks. Very few folks have the ability to keep something like that running...at those levels...kudos

If these are the diode pumped versions of the old LS then if they can be made to run at all, these power levels are to be expected. Two hundred watts on the deck is within spec. It is my understanding however, that the divergence of the diode pumped units is larger. The mode area in the crystal is larger to avoid damage and the purpose of feeding a fiber does not need low divergence. Also, these lasers are no longer used as a pump source for dye lasers.

[Junktronix]

Yeah Krazer, what are warming the lab with there?

This is the last lamp pumped LS. The newer diode pumped version looks even more complex and I hate to think what it'd cost to replace the 700W pump diode array. I'm going to stick with the PV for now. When I have time, I'll divert the beam out of the box before the fiber launch and calculate the divergence. It couples quite efficiently into 400um fiber. Haven't tried anything smaller yet. Power stability is very good if you keep the water temperature constant.

[krazer]

It is a DPSS, currently configured for scientific (hobby) use, q-switched yag. When I took that picture it was running about 100KHz, a little over 1mJ per shot of 532nm. I am hoping to use it for pumping a little piece of Ti:S I found on ebay a while back.

Sadly, I have not had much time to devote to the project recently since the lasers I am building at work (few mJ delivered in a few fs) are taking up a sizable amount of time so my hobby laser progress has been slow recently.