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Entry  Mon Jan 25 16:30:37 2010, Alberto, Update, ABSL, 166 MHz sideband turned off 
    Reply  Mon Jan 25 16:46:33 2010, Alberto, Update, ABSL, 166 MHz sideband turned off 
       Reply  Tue Jan 26 03:28:56 2010, rana, Update, ABSL, 166 MHz sideband turned off 
Message ID: 2546     Entry time: Mon Jan 25 16:46:33 2010     In reply to: 2545     Reply to this: 2547
Author: Alberto 
Type: Update 
Category: ABSL 
Subject: 166 MHz sideband turned off 

Quote:

I turned off the modulation at 166MHZ becasue I don't need it if I'm only locking the PRC.

It was introducing extra amplitude modulations of the beam which interfered with the AbsL's PLL photodiode.

I'm going to turn it back on later on.

 I turned back on the 166MHz modulation just a bit. I set the slider at 4.156.

When it was totally off the MZ seemd quite unhappy.

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