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= Simulation meeting 2020 Aug 12 = = Simulation meeting 2020 Aug 12, 15:00- =
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== Agenda == == Minutes ==
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   * Why not to use "diff" command (and its history)
   * Updated sensing matrix with "fsig" command
   * Comparison v.s. analytical calculation		    * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11857|Note on FPMI]]
    * Why not to use "diff" command (and its history)
    * Updated sensing matrix with "fsig" command
    * jupyter notebook on git was updated to use python3
    * Comparison v.s. analytical calculation
   * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11858|Note on PRFPMI]]
    * Matrices do not match very much :(
    * Analytical calculations seems suspicious
   * Next steps
    * DRFPMI model
    * Include the higher order modes (FPMI, PRFPMI, DRFPMI)
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 * Birefringence modeling

 * OMC modeling
  * Birefringence modeling (Haoyou) [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11792|Notes]]
    * The couple cavity model can hardly reflect the real S-P conversion process as S and P modes have different responses to tunings of PRM.
    * Carefully testing a simple PRC configuration with the S-P conversion using a fake BS. In the model using a BS to separate S and P, there is i multiplied for the BS transmission, which does not happen in the real S-P conversion process. It should be properly treated in Finesse.
    * The phase factor i in the BS model is a problematic thing. We need to handle with it or find new modeling schemes.
 * OMC modeling (June Gyu)
    * Building the OMC model. Possibly some initial results will be obtained in a week or so.
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   * Had the second lecture by Yuzu-san on Aug 5th    * Had the second lecture by Yuzu-san on Aug 5th
    * Installed Anaconda, Finesse2
    * [[KAGRA/Subgroups/MIF/Simulation/CondaSetup | Installation memo for Finesse (Koyama)]]
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 * Yuzu-san will be in Kamioka XXX for instruction  * Yuzu-san will be in Kamioka for instruction from 17(Mon) afternoon to 26(Wed) evening.

=== Next meeting ===
 * Aug 19, 15:00-, zoom3.

Simulation meeting 2020 Aug 12, 15:00-

Participants

Minutes

Updates from Projects

  • IFO modeling

    • Note on FPMI

      • Why not to use "diff" command (and its history)
      • Updated sensing matrix with "fsig" command
      • jupyter notebook on git was updated to use python3
      • Comparison v.s. analytical calculation

    • Note on PRFPMI

      • Matrices do not match very much :(

      • Analytical calculations seems suspicious
    • Next steps
      • DRFPMI model
      • Include the higher order modes (FPMI, PRFPMI, DRFPMI)

  • Birefringence modeling (Haoyou) Notes

    • The couple cavity model can hardly reflect the real S-P conversion process as S and P modes have different responses to tunings of PRM.
    • Carefully testing a simple PRC configuration with the S-P conversion using a fake BS. In the model using a BS to separate S and P, there is i multiplied for the BS transmission, which does not happen in the real S-P conversion process. It should be properly treated in Finesse.
    • The phase factor i in the BS model is a problematic thing. We need to handle with it or find new modeling schemes.
  • OMC modeling (June Gyu)
    • Building the OMC model. Possibly some initial results will be obtained in a week or so.
  • Simulation Interface

Plan during Aug 17-27

  • Hirose-san and Koyama-san will visit Kamioka
  • Yuzu-san will be in Kamioka for instruction from 17(Mon) afternoon to 26(Wed) evening.

Next meeting

  • Aug 19, 15:00-, zoom3.

KAGRA/Subgroups/MIF/Simulation/SimMeeting20200812 (last edited 2020-08-19 13:31:59 by haoyu.wang)