IMC Information
- Current IMC servo topology:
- Common mode servo board configuration:
SLOW (K1:IMC-SERVO_SLOW_CON_IN1) goes to AOM (and IMC length)
- IMC sideband frequency: 13.78 MHz
- Measured IMC modulation depth: ~0.1 rad (measured??)
- Measured IMC finesse: 540 +/- 70
- Measured IMC length: 53.3 m
http://klog.icrr.u-tokyo.ac.jp/osl/?r=616 (Could be slightly different right now since we had re-installation work after this measurement)
- Measured IMC mode matching ratio: 86.2 %
https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=5019 (Could be fairly different right now since we had re-installation work after this measurement)
- Measured MCe RoC: 37.33(9) m
- Measured AOM actuation efficiency: 5.064(7) MHz/V
- Measured laser PZT actuation efficiency: 1.48MHz/V
- Measured laser temperature actuation efficiency:
- ???
- Measured actuation efficiency: 17.2 MHz/V(MCe), 15.9 MHz/V(MCi), 14.9 MHz/V(MCo) @DC
- Measured IMC optical gain: 18.6 V/MHz (cavity pole=5.6kHz)
- Reference Cavity parameters:
- ???
- Calibrated IMC WFS noise level, and some noise hunting:
- Accelerometer on the PSL table:
IMC length NoiseBudget code:
- Frequency stabilization servo modeling (design):