Notes on IMMT1,2 Transmission

Document #:

JGW-T2112949-v5

Document type:

T

Submitted by:

Yuta Michimura

Updated by:

Yuta Michimura

Document Created:

28 May 2021, 22:09

Contents Revised:

28 Jun 2021, 09:40

Metadata Revised:

28 Jun 2021, 16:04

Abstract:

Complicated history behind IMMT1,2 transmission is summarized.
Suggestions for the beam splitter design for IMMT1 transmission is discussed.

v3: updated some info on IMMT2T
v4: added info for IMMT1 transmission measured by the vendor. Presented at the ISC meeting. We decided to go for 90:10 beamsplitter for IMMT1T ISS POM.
http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/subgroup/ifo/MIF/Minutes20210628

Files in Document:

• IMMT1TandIMMT2T.pdf (289.0 kB)
• IMMT1TandIMMT2T.ppt (699.0 kB)

Topics:

• Activity:KAGRA
• Detector:Auxiliary IFO
• Detector:MC
• Detector:Laser

Authors:

• Yuta Michimura

Keywords:

IMC IOO IMMT1 IMMT2 ASC

Related Documents:

• JGW-T1302068: Optical Design of the Input Mode Matching Telescope
• JGW-T1706953: Cartoon of the optical layout around IMC, IFI and IMM
• JGW-L1706994: Setting of pick off mirrors to see light transmitted through IMMT2
• JGW-G2112943: About the IMMT1T setup
• JGW-T2112592: Summary of Current Situation of In-vacuum Steering Mirrors

Referenced by:

• JGW-D2113029: [CONFIDENTIAL] Specification sheet for IMMT1T ISS POM

Approved for use in external presentations:

Unapproved