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Entry  Mon Mar 16 16:16:17 2020, anchal, DailyProgress, ISS, Added true OOL transmission PD for South Path 
    Reply  Tue Mar 17 18:03:22 2020, anchal, DailyProgress, ISS, Added true OOL transmission PD for North Path IMG_20200317_180420.jpg
Message ID: 2560     Entry time: Mon Mar 16 16:16:17 2020     Reply to this: 2561
Author: anchal 
Type: DailyProgress 
Category: ISS 
Subject: Added true OOL transmission PD for South Path 

Today, I added a new out-of-loop transmission PD (Thorlabs PDA10CS) for the south path. This will be helpful in future measurements of RIN coupling to beatnote noise. This PD is added at (1, 40) using the dumped light. The optical layout would be updated in a few days. I've confirmed that this photodiode is reading the same RIN as read earlier in CTN:2555. I've also connected Acromag channel for South Transmission DC to this photodiode, so the transmitted power channels and the mode matching percentage channel of South Cavity are meaningful again.

 

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