camilla.compton@LIGO.ORG - posted 09:26, Tuesday 27 May 2025 (84578)
ALSX and ALSY green arm powers on ISCT1 <2mW
Matt, Camilla, Sheila
Once the X and Y green arms were locked, Matt and I measured their powers on ISCT1, straight after the prism. Sheila took H1:ALS-{X,Y}_REFL_LOCK_TRANSPDNORMTHRESH from 0.8 to 0 so that we the arms would stay locked while we blocked the beams. Measured:
- 1.25mW on ALSX
- 1.75mW on ALSY