Today the intensity servo has been railing negative. It seems like it's trying to get more power through the coupler in order to meet the set point which normally would set the OPO input to the coupler to 20mW.

The changes I made today to try to mitigate the issue:

Adjusted SHG crystal temperature to optimize the conversion efficiency, this is to get more green out. Although we were already getting 40mW. Though I don't think that was the issue.

Adjusted half waveplate to get more power through when the servo is off so the default power sits around 18mW into the coupler.

SHG_PWR_TRANS_OFFSET went from -325 to -342

AOM low limit changed to -9000 this corresponds to nealy 20mW into the coupler.

I think the pump laser drifting is the problem here. When the red output goes down, green output goes down and the servo keep asking for more power until it hits the limit. The laser is still acting up as I'm writing this alog. I think it's going to keep hitting the rail.