ASC simulations for O3 SRM transmission, SRC Gouy phase shift and ITM transmission asymmetry

Document #:

JGW-T1910359-v1

Document type:

T

Submitted by:

Yuta Michimura

Updated by:

Yuta Michimura

Document Created:

20 Jun 2019, 13:10

Contents Revised:

21 Jun 2019, 13:21

Metadata Revised:

21 Jun 2019, 13:21

Abstract:

Report on the effects of O3 SRM transmission, SRC Gouy phase shift and ITM transmission asymmetry to ASC sensing noise.
Optickle simulation for the following configurations were done:

* Nominal BRSE at the time of Aso 2013 (PRM input power 77.5 W), but with T_PRM = 10.35%
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.88.043007
https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5744

* Nominal BRSE with updated PRM input power to 65 W (670 W at BS)
https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7038

* BRSE with T_SRM=30%, PRM input power 1 W (O3 SRM transmission, 10 W at BS)

* BRSE with T_SRM=30%, PRM input power 1 W, SRC one-way Gouy phase 48deg/2 (by changing SR2-SR3 length by +4 cm)
https://klog.icrr.u-tokyo.ac.jp/osl/?r=9246

* BRSE with T_SRM=30%, PRM input power 1 W, SRC one-way Gouy phase 48deg/2, T_ITMX=0.444%, T_ITMY=0.479%
https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=10352

Files in Document:

• ASCShotNoiseforO3.pdf (1.2 MB)
• ASCShotNoiseforO3.ppt (1.5 MB)

Topics:

• Activity:KAGRA
• Detector:Interferometer Sensing and Control:Alignment Sensing and control

Authors:

• Yuta Michimura

Keywords:

O3 optickle simulation ASC ISC MIF

Related Documents:

• JGW-L1605744: Acceptance for PRM transmission 10.35 %
• JGW-T1707038: Latest estimated sensitivity of KAGRA (v201708) *APPROVED*
• JGW-T1910352: On the effect of arm cavity finesse asymmetry to O3 sensitivity
• JGW-G1301664: WFS信号への要求値

Referenced by:

• JGW-G1910807: Report on Simulation Studies on Interferometer Configuration for O3

Approved for use in external presentations:

Unapproved