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   sci.optics      Discussion relating to the science of op      12,750 messages   

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   Message 12,434 of 12,750   
   andrea.b@galacticscientific.com to All   
   193nm Q-switched Yag system   
   04 Jan 19 03:28:46   
   
   Hello friendly sci.optics community.   
      
   I am fortunate enough (though in many ways, not so much) to be attempting to   
   restore a very interesting Q-switched Yag system.   
   I'm wondering if anyone out there has some experience with such beasts.   
      
   I had it working fine but a relocation has changed that.   
   Temperature in the new location is around 5 degrees C cooler, so everything   
   needed readjusting, but IR came good eventually from the flashlamp pumped   
   source.   
   I can say the IR generation side is now OK'ish. Should generate 300mJ, I get   
   250.   
   The 532nm SHG output is low however at 20mJ.   
   No matter what angle I move the thing or set the adjustment, that's as good as   
   it gets. It looks OK, clear path, no frosting.   
   So I was wondering if anyone has a good guide to testing and/or repairing   
   harmonic generators generally as aside from adjusting them, I've never tried   
   to seriously test and/or repair one. If indeed it has a problem, maybe I'm not   
   testing it properly...   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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