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Message ID: 5815     Entry time: Fri Nov 4 21:15:38 2011
Author: Katrin 
Type: Update 
Category: Green Locking 
Subject: New fiber coupler (YARM) 

63% coupling efficiency into the new fiber collimator (Thorlabs XXXX) and the blue fiber.This should be sufficient for a beat measurement with the PSL laser.

I think the coupling efficiency is not too bad with having no mode matching lenses and no adjustable collimator lens.

 

252mW in front of the fiber

159 mW fiber output

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