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I have a lot of 35W 975 nm fiber modules which were sold as tested and good, the ones I powered up were, but I don't use lasers for anything practical, just for fun and still have two eyes too. I live out in a very rural area and have room to play, no airports anywhere near me but also not pointing...

... when powerfull enough, then it's pretty good suited for metal: - welding, melting, cutting ... and "3D-printing" >:) The 40W@975nm-diodes with attached 0,1mm-fibers were already enough, to melt lowtemp melting metal powder or many (dark) powders of other materials like plastic, lignin, glass...

What else to do with 1064 nm :p It's a long term project, but I have a few of them...... I made a SHG once before using 1064 nm out of a 15 KW peak power pulsed YAG, average power was only a few watts at 1064.

... ah, so meant for frequency doubling -- then good luck!

I have a lot of laser junk, mostly good parts, but no lasers which produce more than 10W at 532 nm. Would like to use these heads, have three of them, to build a high power 532 nm laser using one or two if OSC and PA arrangement.

... interesting design -- round 20 years ago I've helped to assemble the "ringfocus-laser", where 80(!) 20W-Diodes were collimated and the beams combined into 1.6kW on a "spot" roughly 6mm wide for metal welding. Actually I have many IR-Laserdiodes with up to 40W fed through 0,1mm-fibers or...

Each ring has five diode assemblies, each producing 20 watts IR.

... so in optimal setup around 100Watts averaged. If I think about te actual DPSS IR-Laserdiode modules wit 2Watts "output power" (read "averaged") -- they're pumping with a 25W-IR-Laserdiode and AFAIK 808nm wavelength ...

There are three 100W ring diode pumps in one ND:YAG head for this one, so that's 300 watts of IR pump into one YAG.

... with 100Watts pump power in a DPSS setup with AOM modulation the estimated pulse-peak-power should be something like some 10 to 100 Kilowatts and the averaged "CW" power is highly depending on the cooling methodes :cool:

Pulsed high current DC to the diodes, I don't have a power supply capable of doing so but for now, want to use them at a constant current with a AOM or something to produce short bursts, high peak power out of the ND:YAG to produce more efficient SHG conversion to green. I was wrong about the IR...

... sounds reasonable :cool: On the other side - when only shortly activated (and with massive cooling), diodes can be "overpowered" with up to 50% for some millisconds and up to several 100% for microseconds ... then they'll need some seconds for cooling down. So for "pulsing" applications...

The donut diode rings are each 100 watts, I believe this is likely DC watts into the diodes, three 100 watt rings producing 300 watts at 50% efficiency would be 150 watts of IR pump power, so it stands to reason the output of the ND:YAG is 1/3, or 50 watts, perhaps 60. Is my reasoning valid?

... for typical power-efficiency with diode pumped lasers, here some numbers: Sometimes around 2005 I had a "disk"-laser with 20Watts averaged, which was pumped with a 60Watt IR-laserdiode-module. Modern fiberlasers too needs around 3x the later "averaged" output power as combined...

Ah, 120+ with flash lamp. Best I've come to find for the ND:YAG output of the diode pump driven 300W Avia Thor head is about 40 watts for a single head, but when searching online for typical output percentage of the pumped power for 1064 nm output, estimates are much higher. Appears I have a bad...

... the two old ones (120W/150W) were not DPSS, but flas-lamp pumped ... much lower efficiency, as with diodes -- I'll estimate something like 3-5%, instead of around 35% with DPSS. I've stored one of the resonator chambers and got some water-cooled 405nm-LED's with 9W and 100W output, to pump...

You could get 120+ watts out of one single ND:YAG from the Avia Thor when pumped at 300 watts? Impressive, especially 150W. Just wanted to confirm this is possible from a three diode ring Avia Thor ND:YAG, thanks.

... my two old ones had 120W and 150W (salvaged and sold) ... actually have a "medical" with 60W ... but not "CW" but "averaged" :cool:

https://www.edmundoptics.com/f/cylindrical-microlens-arrays/14569/?srsltid=AfmBOoqPRaoY7kBmJmyCHjFir-v_CxZpJByadnBU-rudHpw1XRtIzl0Q https://www.meetoptics.com/lenses/array?srsltid=AfmBOoqMqVH3CC5DUhaw5Jke-lrZ1QqBiEbkKoqc4V0YG5gD9z16nPBQ I know, a bit pricey. You could try cutting a bunch of...

Thanks Gang 2025, Looks like some interesting components. We are actually pretty low volume guys, but will keep you in mind and pass along the info to our friends. Craig

Raising the dead here, been a very long time since this thread has been active.... but, might anyone know what the CW output of one ND:YAG is and what can be had with two, as originally configured?

Hi, Slide, if you had a high volume need for lasers, we, Analog Technologies, Inc., make most the components for making lasers at low cost. The key components: TEC module, TEC controller, and laser driver. We have all. Interested? this is our website: www.analogtechnologies.com Gang

Thanks to the folks that helped out with some info on our decision. The OPT Lasers 8000 RGB was great for the price point. The ILDA test pattern looks good, colours are in balance and we added their DMX scan through FX wheel. All works well.

The overall project budget is higher, but only about 1/4 to 1/3 would go toward the laser setup specifically. I’ll be working in a blackbox theater with access to video projectors, lighting, sound, etc.—so I’m mostly looking to explore how a laser element could complement that environment. It’s...

The goal to do an art installation worth the effort with no background in lasers, no knowledge of laser safety, and a budget $2500 seems unrealistic. There's a guy here that does lumia installations that you might interest within your budget, but it would almost certainly be a short run thing....

Hi Im from Mexico and a have 3 of this amazing laser THE GREEN MONSTER 05 from PULSLIGHT And i have the same problem 2 tubes are broken Did you find the tube ? Where did you get? Thanyou for your answer QUOTE=idk;349188]Please help me fix this old Rock 'n' Roll laser! I discovered this old...

Just gonna leave this here.