From: dk4xp@arcor.de   
      
   Am 13.12.25 um 05:47 schrieb Bill Sloman:   
      
   > One thing to keep in mid with your constant current source is that the   
   > lasing region is very compact, and even a very brief over-current can   
   > burn it out.   
   >   
      
   Yes, it is usually the frequency-selective optical reflector grid   
   that dies in ms. Faster than we are used from semiconductors.   
      
   Gerhard   
      
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