Sheila, Camilla
Sheila suggested that what happened on June 14th was that SQZ OPO temperature or angle wasn't well tuned for the green OPO power, when the OPO ISS as off, the SHG launch power dropped from 28.8mW to 24.5mW. it was just chance that SQZ was happier here. Since Saturday we've been injecting ~25.5mW 78467.
While looking at this, you can see the SQZ-OPO_TRANS_LF signal has got more noisier since the January break in the 0-60Hz region. Plot here. Maybe this is expected from the PMC install?