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Entry  Tue Jun 22 09:45:21 2010, Aidan, Joe, Razib, Update, Phase Camera, Current phase camera setup. Seeing Acoustic beat 2010-06-22_Phase_camera_layout_version_1.pdf
    Reply  Tue Jun 22 13:38:13 2010, Koji, Update, Phase Camera, Current phase camera setup. Seeing Acoustic beat 
Message ID: 3096     Entry time: Tue Jun 22 09:45:21 2010     Reply to this: 3097
Author: Aidan, Joe, Razib 
Type: Update 
Category: Phase Camera 
Subject: Current phase camera setup. Seeing Acoustic beat 

 We've set up a preliminary test bed for the phase camera. It simply uses a HeNe that is split into two beams. One is frequency shifted by an AOM by -40 MHz - df, where df is some acoustic frequency. The second beam is transmitted through a 40MHz EOM to get sidebands. The two beams are recombined and are, currently, incident on a photodetector, but this can be replaced by the phasecamera.

We turned everything on with df = 1kHz and confirmed that a 1kHz signal is visible on the output from the photodetector (PD). The signal looks to be about 1:300 of the DC level from the PD.

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2010-06-22_Phase_camera_layout_version_1.pdf
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