Vicky, Camilla

We adjusted the alignment into the OPO pump fiber on SQZT0 but touching BG2 and MG3 (layout on D1201210) to increase power coupling through fiber by ~5%, see attached. Vicky noticed OPO REFL was lower than usual, with 14mW into the OPO pump fiber, we were getting 1.5mW on SQZT7 OPO REFL and 1.0mW REFL Rejected and 50% of total goes to SK path (BS in HAM7), so total of 5mW/14mW = 35% throughout. Nominal Launch power is ~20mW.

Launch power was reducing due to temperature change of having table enclosure open. We pico-ed the HWP (pico I motor 2) to reduce the power into the fiber while we did this.