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Message ID: 919     Entry time: Tue Aug 10 18:48:09 2010
Author: Jenna 
Type: Laser 
Category: GYRO 
Subject: Error signal investigations 

We've put a beam dump in the cavity to block the beam, and the yellow plot is the reflected PD. The first plot shows the scope DC-coupled, and the second shows it AC-coupled with the sensitivity turned up on that channel. We're getting about 20mV of RF in that channel out of a 500mV signal.

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