JGW-T2011633-v4

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Arm cavity round-trip measurement with ITM inhomogeneity and birefringence

Document #:
JGW-T2011633-v4
Document type:
T
Submitted by:
Yuta Michimura
Updated by:
Yuta Michimura
Document Created:
25 Apr 2020, 15:40
Contents Revised:
25 Apr 2020, 16:35
DB Info Revised:
25 Apr 2020, 16:35
Viewable by:
Modifiable by:
Other Versions:
JGW-T2011633-v3
25 Apr 2020, 16:30
JGW-T2011633-v2
25 Apr 2020, 16:14
JGW-T2011633-v1
25 Apr 2020, 15:41
JGW-T2011633-v0
25 Apr 2020, 15:40
Abstract:
Arm cavity round-trip loss (RTL) is usually estimated from the power reduction in the arm reflection when the arm cavity is locked. But this method can be wrong when there is significant ITM birefringence and when you are detecting s-pol and p-pol with some bias.
Correct way of measuring RTL is discussed.

Related klog:
https://klog.icrr.u-tokyo.ac.jp/osl/?r=7307
https://klog.icrr.u-tokyo.ac.jp/osl/?r=9314
https://klog.icrr.u-tokyo.ac.jp/osl/?r=9393
Files in Document:
Keywords:
birefringence
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