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Entry  Tue Jan 4 18:26:59 2022, Anchal, Update, BHD, Tested 2" PR2 candidates transmission 
    Reply  Wed Jan 5 17:46:04 2022, Anchal, Update, BHD, Tested 2" PR2 candidates transmission 
       Reply  Mon Jan 10 18:20:45 2022, Anchal, Update, BHD, Tested 2" PR2 candidates transmission 
          Reply  Tue Jan 11 15:21:16 2022, Anchal, Update, BHD, PR2 transmission calculation LO_power_vs_PR2_transmission.pdfPRC_Gain_vs_PR2_transmission.pdfPRS_Trans_Calc.ipynb.zip
             Reply  Thu Jan 13 17:10:55 2022, Anchal, Update, BHD, PR2 transmission calculation LO_power_vs_PR2_transmission.pdfPRC_Gain_vs_PR2_transmission.pdfPR2_Trans_Calc.ipynb.zip
                Reply  Fri Jan 14 03:07:04 2022, Koji, Update, BHD, PR2 transmission calculation 
                   Reply  Fri Jan 14 11:00:29 2022, Anchal, Update, BHD, PR2 transmission calculation 
                      Reply  Fri Jan 14 13:46:25 2022, Anchal, Update, BHD, PR2 transmission calculation updated LO_power_vs_PR2_transmission.pdfPRC_Gain_vs_PR2_transmission.pdfPR2_Trans_Calc.ipynb.zip
                         Reply  Wed Jan 19 16:22:48 2022, Anchal, Update, BHD, PR2 transmission calculation updated PR2transmissionSelectionAnalysis.pdfPR2_Trans_Calc.ipynb.zip
                            Reply  Thu Jan 20 01:48:02 2022, Koji, Update, BHD, PR2 transmission calculation updated 
Message ID: 16587     Entry time: Fri Jan 14 13:46:25 2022     In reply to: 16585     Reply to this: 16598
Author: Anchal 
Type: Update 
Category: BHD 
Subject: PR2 transmission calculation updated 

I updated the arm cavity roundtrip losses due to scattering. Yehonathan told me that arm cavity looses 50ppm every roundtrip other than the transmission losses. With the updated arm cavity loss:

  PRFPMI LO Power (mW) Unlocked PRC LO Power (uW) PRC Gain
pre-2010 ITM 8 28 15.2
V6:704 24 113 12

 

Attachment 1: LO_power_vs_PR2_transmission.pdf  28 kB  | Hide | Hide all
LO_power_vs_PR2_transmission.pdf
Attachment 2: PRC_Gain_vs_PR2_transmission.pdf  23 kB  | Hide | Hide all
PRC_Gain_vs_PR2_transmission.pdf
Attachment 3: PR2_Trans_Calc.ipynb.zip  1 kB
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