Probably I should just sell you a couple of old used, beat up LS cavity mirrors cheap. Make an "L" fold and put the crystal intra cavity.
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I have a non-laserscope 24 Mhz Q-switch and driver some place too...
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What I'd really bill for is the disgusting 15 to 20 minutes it takes to fill out the bloodly new version of the customs and shipping brokerage form.... With all the lines and blanks too far small to write in... What the ^&%$ is the harmonized international tariff code for used laser hobby parts, anyway....
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Make sure it lases first. Really, really, really, make sure you have good De-ionized water around the lamp before firing. Else you'll hear a sizzle or a pop and the PSU dies, it arcs to the lamp housing, or the lamp explodes, taking the rod with it. Pick any one or two.... If the lamp does not light after about 10 seconds when the PSU delay "times in", shut down right away. A perpetually pulsing YAG ignitor is not good for anyone's mental health.
That means a new DI cartridge, and not a Ebay/Chinese one... Plus checking the water conductivity, to make sure its really DI....
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Takes a few hours of circulation, with the lamp off, before the water is really good... Don't delete the temperature, flow, and water quality interlocks and sensors either, 007...On a big YAG most of them are there to protect the laser from you and Mr. Murphy...
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Pick a moderate lamp current and stay there. Ramping the power all over the place is hard on the lamp, and they do not run at low idle very well.
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SAFETY WARNING:
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Since I know I can't get you just to toss this beast in the trash and move on, here goes:
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One Hundred Watts of 1064 nanometer light should scare the hell out of you. OD6 or OD7 wrap around goggles and a good readup on laser safety is needed. Silicon CCDs barely detect 1064 at low levels. Most cell phone cams these days don't see it, so you need a good used CCD security camera and a USB video digitizer to see the beam. I doubt you'd have a Find-IR-Scope with the laser package, so you need to improvise. Home made beam dumps generally don't last long at 100 Watts and usually scatter too much stray light...
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Light scatter from the cavity and beam dump is a big time hazard with these...
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Did I mention up to 7 Kilowatts of DC is VERY Lethal, especially if the ignitor arcs to your body or it passes thru cooling water?
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B and W photo film (gelatin based paper) discolors, then burns nicely when hit with pulsed 1064, place it in a plastic "ziplok" bag to keep the dust off the optics...
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Not a toy, and not for running in a shady garage or apartment with people around. You should have a properly protected safety person with you....
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Steve
Last edited by mixedgas; 12-23-2015 at 07:36.
Qui habet Christos, habet Vitam!
I should have rented the space under my name for advertising.
When I still could have...
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