JGW-T2112858-v4

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Final design and implementation of the KAGRA green lock system

Document #:
JGW-T2112858-v4
Document type:
T
Submitted by:
Kiwamu Izumi
Updated by:
Kiwamu Izumi
Document Created:
29 Apr 2021, 08:31
Contents Revised:
04 Oct 2021, 15:17
DB Info Revised:
04 Oct 2021, 15:17
Viewable by:
Modifiable by:
Other Versions:
JGW-T2112858-v3
04 Oct 2021, 15:16
JGW-T2112858-v2
30 Jun 2021, 06:42
JGW-T2112858-v1
07 Jun 2021, 12:50
JGW-T2112858-v0
29 Apr 2021, 08:31
Abstract:
This document summarizes the design and current implementation of the green lock system or ALS (Arm Length Stabilization) system as a snapshot as of April 2021. For historical reasons, we refer this particular system either ALS system or green lock (GRE) system.
Files in Document:
Other Files:
Authors:
Notes and Changes:
v4: Part numbers for the Prometheus lasers were wrong and fixed.
Referenced by:
  • JGW-T2112889: Design of modified zig-zag optical path for FNC
  • JGW-T2112955: Concept of modified Fiber Noise Cancellation
  • JGW-E1807769: Document Tree for Arm Length Stabilization System
  • JGW-T2213847: Recognition of issues for KAGRA GRE (ALS) system
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