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  1. Laserbuilder

    K301V 125W CW Nd:YAG pumping chamber for sale

    The pumping chamber is still on sale on e-bay. https://www.ebay.com/itm/K301V-YAG-Cavity-Pumping-chamber-130W-1064-nm/112982983816?hash=item1a4e4f8488:g:MBcAAOSwmcBa8v43:rk:3:pf:0 Also I want to add for sale some custom made low pressure mercury lamps, that had been made by my fellow...
  2. Laserbuilder

    565nm DPSS labby

    I tried looking for it through "565 nm laser" search query. but didn't find it. I'd like to buy a couple of them to have a volatile exchange fund, for converting them into gas lasers then:yh::yh:
  3. Laserbuilder

    565nm DPSS labby

    Is there a chance that these lasers will appear on e-bay soon?
  4. Laserbuilder

    Argon laser - Is this worth of buying?!?! Help

    I think that cooling it with a fan will not harm.
  5. Laserbuilder

    Argon laser - Is this worth of buying?!?! Help

    This is normal for the MOT. All of them become very hot because the iron core works very near to the state of magnetic saturation. To reduce the heating it would be good to add a couple of tens of turns in the primary.
  6. Laserbuilder

    Trying to build an insane 532 nm laser

    I think I will return to this project soon, as I've made the GOS1001 laser working. I've drawn a rough optical layout of the green laser. It will utilise 2 130W pumping chambers an a big lithium niobate crystal. Will this layout work? And where can I get a curved HR mirror for 45deg reflection?
  7. Laserbuilder

    Household Deathstar

    Yes, it generates quite a lot of heat. Normal rate of fire is one shot in two to five minutes, depending on the pumping energy. So I adjusted the time of the caps to recharge to match this value. And 30 liters of water become warm after ten shots at 24 kJ. At this point output energy starts to...
  8. Laserbuilder

    Household Deathstar

    Some more holes in steel plates
  9. Laserbuilder

    Household Deathstar

    Yesterday I managed to push 24 kJ of pumping energy. Estimated output is about 250-300J. Anyway, it cannot penetrate 3mm of steel from a single shot. The lens is with bigger focal lens and is not damaged now.
  10. Laserbuilder

    K301V 125W CW Nd:YAG pumping chamber for sale

    Bump! this pumping chamber is still on sale...
  11. Laserbuilder

    Household Deathstar

    Thanks!
  12. Laserbuilder

    Household Deathstar

    Here I'm starting a thread about the most high-energy laser that had ever been manufactured commercially for general lab use. The GOS-1001 Nd:Glass laser, that is rated for 1000 J of output energy! And it is the true peak of my collection. A few days ago I managed to get first coherent photons...
  13. Laserbuilder

    Rofin DPSS YAG metal cutting laser teardown

    It looks like that a HR from a pulsed laser should be fine for this. I've got a couple of them.
  14. Laserbuilder

    Rofin DPSS YAG metal cutting laser teardown

    AFAIK, I've got several mirrors for 1064nm, HRs and OCs. Do you know what reflectivity do you need for an OC? I have some with t=16%, 20% and probably 25%. Also I've got OCs with t=50% and 70%, but these are for pulsed lasers. PS: the flow rate in the first loop is 25 liters per minute or...
  15. Laserbuilder

    Rofin DPSS YAG metal cutting laser teardown

    Hello Here I'll show a typical russian chiller for a lamp-pumped 250W YAG laser. The tank is filled with distilled water that is pumped into the water jacket of the YAG rod with the pump on top of the tank, and through the coils of tubes cold water from the tap flows to take away heat from the...
  16. Laserbuilder

    Laserbuilder's collection of gas and other lasers

    27) The laser tube that I've been hunting on for several years -- really big CVL tube! It is also sealed-off self-heating tube with the output of up to 30W on both lines, it is called GL-201. It needs at least 4 kW of input power, so it will be quite tricky to run it. The tube is 1.3 meter long...
  17. Laserbuilder

    New Gadget - 355/532/1064 Q-Switched YAG

    I've missed this thread.. Very cool laser! Maybe one day I'll start the project of the big green laser with CW lamp pumping.
  18. Laserbuilder

    PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please sub

    Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please That is cool! Unfortunately, I don't have any 1122 nm mirrors. Otherwise it would be possible to build a high power 561 nm lase based on two 130W YAG pumping chambers.




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