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= Chat on simulations 2021/09/14 =
Participants: Haoyu Wang, Tomotada Akutsu, Yoichi Aso, Yuta Michimura, (Keiko Kokeyama)
= In-vac PD/QPD layout meeting 2024/11/20 =
Participants: Ray-Kuang Lee, Huali Chen, Yoichi Aso, Yuta Michimura
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Zoom meeting: https://zoom.us/j/5045179604 Zoom meeting
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 * '''Decisions'''
  * Increase the frequency of the simulation meeting to biweekly. Doodle the slot [Haoyu].
  * Ask Haoyu and other simulators to join the commissioning(integration) meeting on Wednesday 11:00.
  * Ask June Gyu the status of OMC model and may be ask him to join birefringence model development.

 * Current simulation activities
  * GUI development by Koyama-kun. GUI will be useful for commissioners
  * IFO model by Kokeyama-san for simulating sensing matrix etc. Haoyu will take over.
  * OMC model by June Gyu to compare measured OMC scan results with the simulation. May be halted.
  * Birefringence model by Haoyu. Currently constructing the model. Freq noise coupling etc will be calculated once ready.
 * Starting point of simulation useful for the site work.
  * Try to reproduce directly reflected beam from ITM at POP. Dirty shape from birefringence or clipping?
   * BS s/p reflectivity unbalance and polarization rotation from periscope etc. would change the shape of s/p beam shape.
   * Comparing the simulation result with POP s-pol/p-pol camera image is a starting point.
  * Big task will be to check ASC with birefringence included.
 * Commissioning meeting on Wednesday 11:00 is useful for communication between on-site people and off-site people.
 * Start with AS layout, and then to REFL and POP
 * By the end of February
 * In-air AS table layout and some Gouy phase telescope designs live here:
  * https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=9817
 * KFC interface optics design lives here:
  * https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=15526
 * Most updated OMC chamber drawing lives here (could be slightly different from the reality due to recent activities in OMC chamber):
  * https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=15729
 * We want to follow similar Gouy phase telescope design in LIGO
  * https://dcc.ligo.org/LIGO-T1000247/public

In-vac PD/QPD layout meeting 2024/11/20

Participants: Ray-Kuang Lee, Huali Chen, Yoichi Aso, Yuta Michimura

Zoom meeting

Minutes

KAGRA/subgroup/ifo/MIF/Minutes20210914 (last edited 2024-11-20 13:18:35 by YutaMichimura)