I never heard of these things.   
   http://www.nktphotonics.com/product/fianium-whitelase/   
   https://www.leica-microsystems.com/science-lab/white-light-laser/   
      
   Some google hits.   
      
   A customer wants to buy our fabry perot cavity.  (It's confocal 20 cm   
   ROC for the mirrors) FSR ~380 MHz, finesse ~100.  It's made for use   
   with our 780 nm diode laser.  I asked him if he had a scanable laser,   
   and this is what he has.  I worried that it won't work with his system.   
      
   What's the optical bandwidth of a WLL, certainly with a pulse rate of   
   80 MHz, it's gotta be more than 80 MHz, no?   
      
   TIA   
      
   George H.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)