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Message ID: 2386     Entry time: Sun Aug 11 22:32:18 2019
Author: ScottA 
Type: DailyProgress 
Category: RFAM 
Subject: Change in EOM Driver Transfer Function with Different Input Powers 

I set up the transfer function for three scenarios using a -5 dBm, 5 dBm, and 15 dBm signal for each:

  • The new EOM (SN:06) tuned for the bias tee with the bias tee and dummy EOM.
  • The old EOM driver (SN:01) which was on the south path with the dummy EOM
  • The old EOM driver with the real EOM. 

In every case, there is a decrease in the magnitude of the transfer function with an increase in signal.

EOM Driver Link: https://dcc.ligo.org/cgi-bin/private/DocDB/ShowDocument?.submit=Identifier&docid=D1200794&version=

List of EOM Drivers in the lab: https://nodus.ligo.caltech.edu:30889/ATFWiki/doku.php?id=main:experiments:psl:electronics

Attachment 1: Transfer_EOM_drivers_mult_input_pow.pdf  52 kB  Uploaded Mon Aug 12 00:00:38 2019  | Hide | Hide all
Transfer_EOM_drivers_mult_input_pow.pdf Transfer_EOM_drivers_mult_input_pow.pdf Transfer_EOM_drivers_mult_input_pow.pdf
Attachment 2: Diff_Input_power_old_and_new_EOM.zip  378 kB  Uploaded Mon Aug 12 00:00:38 2019
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