XPost: alt.lasers   
   From: laserpower@gmx.net   
      
   On Tue, 13 Jul 2010 22:25:37 +0100, DavidM  wrote:   
      
   > On 13/07/2010 00:47, Phil Hobbs wrote:   
   > > I'm building a frequency locker for a 1.55 micron DFB laser.  I know   
   > > that Fabry-Perot lasers tune towards lower frequency with increasing   
   > > temperature and bias current.   
   > >   
   > > Modern DFB lasers are very carefully tuned to minimize chirp, though, so   
   > > ISTM that the current tuning could go either direction.   
   > >   
   > > Any wisdom?   
   > >   
   > > Thanks   
   > >   
   > > Phil Hobbs   
   > >   
   > >   
   >   
   > I've used DFB's from 4 or 5  different suppliers and all tuned to longer   
   > wavelength/lower frequency with increasing current and temperature.   
   >   
   > These were all DWDM sources   
   >   
   > regards   
   >   
   > David   
      
   Hi Phil,   
      
   I'm not sure whether you are still working on this. If yes, have a   
   look at toptica. They offer commercial solutions for this. That might   
   give you some ideas.   
      
   We are using their equipment to lock a 2064nm laser diode to a gas   
   cell and a pulsed ring laser resonator to the laser diode.   
      
   Regards,   
      
   Christoph   
      
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