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Message ID: 304     Entry time: Tue Aug 7 15:43:12 2018
Author: Koji 
Type: Electronics 
Category: Characterization 
Subject: New LLO EOM stuffed 

[Rich, Dean, Koji]

Stuffed all inductors for the new LLO EOM. As the impedances were sensitive to the positions of the inductors in the housing, they were glued with a glue gun.
Also the lid of the housing significantly change the stray capacitance and lowers the resonant frequency (meaning lowers the Q too), we decided to tune the matching circuit without the lid.

The attached plots show the measured impedances. They all look well tuned and matched. We will prepare and perform the optical measurement at the 40m.

Attachment 1: P_20180806_154457.jpg  142 kB  Uploaded Tue Aug 7 16:53:43 2018  | Hide | Hide all
P_20180806_154457.jpg
Attachment 2: impedance_eom.pdf  813 kB  Uploaded Tue Aug 7 16:53:49 2018  | Hide | Hide all
impedance_eom.pdf
Attachment 3: impedance_eom_zoom.pdf  872 kB  Uploaded Tue Aug 7 16:53:57 2018  | Hide | Hide all
impedance_eom_zoom.pdf
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