Ryan S, Camilla, Sheila. Followed 82881. WP 13645.

We touched up alignment in SQZT0 Green Pump path. 

• Starting:
  • Into EOM: 70mW
  • Out of EOM: 66mW (94% throughput)
  • Out of AOM (0V): 16mW (24% throughput)
• We touched up EOM alignment and then AOM alignment with 0V on DRIVE_ALIGN:
  • Into EOM: 95mW
  • Out of EOM: 92mW (97% EOM throughput)
  • Out of AOM (0V): 88mW (95% throughput). With this AOM alignment the first order beam (5V on DRIVE_ALIGN) was very dim. 
• Final:
  • Out of AOM (0V): 68mW (77% AOM throughput)
    • 9mW in first order beam as we've aimed for in the past 87233. 

Ryan and I then reduced the power going into the fiber to 25mW with the waveplate and touched up the alignment into the fiber. Starting 0.2mW, ending 3.3mW which seems around typical O4 level.

Before we did this, we noticed the beam was high and clipping on the OPO-REFL diode so we adjusted the steering mirror MG4 and checked the beam was centered on the REJECTED diode with MG5 (D2000242).