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Entry  Wed Aug 13 17:37:43 2014, Jenne, Update, General, Game plan 2014_Aug_13.pdf
    Reply  Thu Aug 14 02:51:46 2014, Jenne, Update, General, Game plan Y_ALS_FINE_PHASE_OUT_noisy_13Aug2014.pdf
    Reply  Thu Aug 14 14:58:03 2014, Jenne, Update, General, Updated game plan 2014_Aug_14.pdf
       Reply  Thu Aug 14 15:42:29 2014, Koji, Update, General, Updated game plan 
          Reply  Thu Aug 14 15:51:37 2014, Jenne, Update, General, Updated game plan 
             Reply  Thu Aug 14 18:02:11 2014, Koji, Update, General, Updated game plan 
                Reply  Thu Aug 14 18:05:05 2014, Jenne, Update, General, Updated game plan 
    Reply  Fri Aug 15 20:26:37 2014, ericq, Update, General, Game plan 
Message ID: 10386     Entry time: Thu Aug 14 15:51:37 2014     In reply to: 10385     Reply to this: 10387
Author: Jenne 
Type: Update 
Category: General 
Subject: Updated game plan 

Quote:

 - ALS

End PDH UGF improvement / post mixer LPF investigation (with in 2 weeks)

- MC/FSS

Riju measured the MC REFL PD transimpedance. See ELOG and related.

- ASC

Why do we want to see less PRM motion? I thought PRC motion was causing
LSC issue of the central part. We wanted to maximize the PRM effect, don't we?
(Or is this to supress ETM motion during full lock?)

 End PDH - good point, thanks.

ASC - Yes, this is so that we can use the POP QPD to feed back to the common ETMs after the CARM offset is already quite small.  We will not use POP DC QPD for PRC any more. 

Also, for future PRC ASC, I keep coming back to this in my head, but maybe it is less painful to install oplevs for PR2, PR3 than it would be to make an RF QPD.  Neither is going to be trivially easy.  But if we had sensors of the tip tilt motions, we could feed all of that back to the PRM to stabilize the PRC.

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