Sheila, Camilla, WP#12632.

Moved OPO Crystal Spot using instructions in 80451, last done in January 2025 82134.

• Starting Position: forth spot from the left. 0.830V is the height of green 00 mode. 41% of green power in 01 mode
  • Alignment looked very bad, photos attached. 
• Ending Position: second spot from the left. 2.23V is the height of green 00 mode. 36% of green power in 01 mode
  • Note that we have used this spot before but LLO found that it was okay to go back to old spots and this spot looked better than the edge spot

For all of the used spots we moved through, to the left of the co-resonance, the loss suddenly increased as in the spot to the side of the current co-resonance was in the past used. This made us think that we are set to a different temperature to other times we have moved the spot. 

Measured NLG to be 10 with the OPO TRANS setpoint set to 95uW, the NLG was very low 7 with 80uW, hence staying at 95uW, the NLG's seemed to have dropped this week 85252, we don't know why. 

Tagging OpsInfo: This change will mean that for the next week or so we'll need to more regularly adjust the OPO TEC temperature, instructions are in 80461. Should be done pro-actively when relocking and if range is low in observing. Pop out of observing to adjust while in Observing.