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   sci.electronics.design      Electronic circuit design      143,326 messages   

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   Message 141,650 of 143,326   
   Phil Hobbs to Gerhard Hoffmann   
   Re: Driving Lasers   
   13 Dec 25 11:09:08   
   
   From: pcdhSpamMeSenseless@electrooptical.net   
      
   Gerhard Hoffmann  wrote:   
   > 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   
   >   
   >   
      
   A nice juicy carpet shock can blow the front facet off much faster than   
   that (although the fragments will still be moving for awhile afterwards.   
      
   Cheers   
      
   Phil Hobbs   
      
   --   
   Dr Philip C D Hobbs  Principal Consultant  ElectroOptical Innovations LLC /   
   Hobbs ElectroOptics  Optics, Electro-optics, Photonics, Analog Electronics   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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