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Entry  Fri Apr 12 02:56:34 2013, Den, Update, Locking, prcl angular motion pointing.pngoplev_exc.pdf
    Reply  Fri Apr 12 09:20:32 2013, rana, Update, Locking, prcl angular motion 
       Reply  Fri Apr 12 13:21:34 2013, Den, Update, Locking, prcl angular motion 
          Reply  Sat Apr 13 03:45:51 2013, rana, Update, Locking, prcl angular motion 
             Reply  Sat Apr 13 23:11:04 2013, Den, Update, Locking, prcl angular motion pointing.pdf
                Reply  Sun Apr 14 17:56:03 2013, rana, Update, Locking, prcl angular motion 
                Reply  Mon May 13 18:44:04 2013, Jenne, Update, Locking, prcl angular motion TT_Q_measurements.pdf
Message ID: 8454     Entry time: Sun Apr 14 17:56:03 2013     In reply to: 8451
Author: rana 
Type: Update 
Category: Locking 
Subject: prcl angular motion 

Quote:

Quote:

For the PRM, it is also a mostly translation effect as calculated at the PRC waist position (ITM face).

I made another estimation assuming that PRCL RIN is caused by translation of the cavity axis:

  • calibrated RIN to translation, beam waist = 4mm

 In order to get translation to RIN, we need to know the offset of the input beam from the cavity axis...

This should be possible to calibrate by putting a pitch and yaw excitation lines into the PRM and measuring the RIN.

See secret document from Koji.

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