From: torty5737@gmail.com   
      
   On Sunday, 12 February 2023 at 23:31:15 UTC, HoloLab wrote:   
   > Not really but I am currently working with photopolymer films which are very   
   slow, potentially yielding long exposure times, which increase the chance of a   
   random phase shift and slow thermal drifts. So I am putting a bit of energy on   
   the fringe-   
   locking topic :)   
      
   I've never worked with photopolymer... can it work in the Denisyuk geometry?   
   That can be more tolerant of noise and air movement around the laser.   
      
   Thanks   
      
   Henry   
      
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