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Entry  Mon May 23 14:28:23 2011, kiwamu, Configuration, LSC, POY55 installed POY55.png
    Reply  Mon May 23 18:16:42 2011, Koji, Configuration, LSC, POY55 installed 
Message ID: 4761     Entry time: Mon May 23 14:28:23 2011     Reply to this: 4763
Author: kiwamu 
Type: Configuration 
Category: LSC 
Subject: POY55 installed 

Last Saturday the POY55 RFPD (see this entry) was installed on the ITMY optical bench for the trial of the DRMI locking.

Since the amount of the light coming into the diode is tiny, the DC monitor showed ~ 3 mV even when the PRC was locked to the carrier.

In order to amplify the tiny RF signal from the photo diode a ZHL amplifier was installed next to the RFPD. The RF amp is sitting on delrin posts for insulation from the table.


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