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Entry  Mon Aug 16 14:19:00 2010, Alastair, Laser, GYRO, Changed to Marconi on AOM gyro_transmission_08_16_10.pdf
    Reply  Mon Aug 16 15:31:27 2010, Zach, Laser, GYRO, Changed to Marconi on AOM 
    Reply  Tue Aug 17 10:18:02 2010, rana, Laser, GYRO, Changed to Marconi on AOM 
       Reply  Tue Aug 17 15:34:02 2010, Alastair, Laser, GYRO, Changed to Marconi on AOM gyro_transmission_08_17_10.pdf
          Reply  Wed Aug 18 03:01:23 2010, rana, Laser, GYRO, Excess noise mystery resolved 
             Reply  Wed Aug 18 10:31:28 2010, Alastair, Laser, GYRO, Excess noise mystery resolved 
Message ID: 943     Entry time: Wed Aug 18 03:01:23 2010     In reply to: 942     Reply to this: 944
Author: rana 
Type: Laser 
Category: GYRO 
Subject: Excess noise mystery resolved 

After some navel gazing, this all no longer seems so surprising. A block diagram of the system with the noise terms labeled should reveal why there is almost no beat signal with the CW servo turned off. I believe that there is no gyro signal in the modulation off case.

 

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