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Message ID: 60     Entry time: Mon Feb 8 18:27:42 2010
Author: Tara Chalermsongsak 
Type: Laser 
Category: RefCav 
Subject: Chaging Isomet AOM to Crystal Tech AOM 

After verifying that the Isomet AOM causes the power modulation and realigning it did not seem to help improving the pointing effect, we switched to a Crystal Tech AOM. The 1st order diffracted beam has 55% of the total power, the remaining power before entering the cavity is ~15mW. The pointing effects observed from QPD improved a little bit to 500 mV on X and Y directions.

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