- Giacomo, Cheryl
Alignment of the IMC, and IM3 and IM4, increased IFO REFL from 106mW earlier this week to 147mW today, giving 90% power coupled into the IMC. In our first measurement, the IMC alignment had drifted away from optimum, and the the IFO REFL beam was clipped on the baffle in front of IM4.
Power budget:
Location | Power (mW) | Time | |||
PSL before | 210 | alog #5100, 14 January 2013 | |||
PSL | 178.3 | 1043721378 | 84.90% | of the PSL "before" | |
IMC Refl Unlocked | 178 | 1043720171 | 99.83% | of the PSL beam | |
IMC Refl Unlocked PosB | 2.11 | 1043719839 | 1.19% | of the REFL beam | |
IMC Refl Locked (estimated) | 15.18 | 8.53% | of the unlocked beam | ||
IMC Refl Locked PosB | 0.18 | 1043719643 | 8.53% | of the unlocked beam | |
IM1 Trans | 0.072 | 1043719495 | |||
IM4 Trans FWD | 0.0216 | 1043718853 | |||
IM4 Trans BWD | 0.33 | 1043718853 | |||
Park | 147 | 1043717883 | 90.29% | of the power coupled in the IMC |