LIGO Document T1700215-v3

Alignment sensing in the signal recycling cavity using a new 118.3 MHz sideband scheme

Document #:
LIGO-T1700215-v3
Document type:
T - Technical notes
Other Versions:
Abstract:
We present notes for a new SRM ASC scheme using beat notes between the current 45.5 MHz sideband and a new sideband at 118.3 MHz. This new scheme is 20 times more robust against differential lens at the ITMs than the current one. If we can change the SRC one-way gouy phase to 25 degree, we can also separate the wavefront distortion from spot centering motion.
Files in Document:
  • Main (NewRFSB.pdf, 1.2 MB)
Other Files:
Keywords:
Detector
Referenced by:

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