Reports until 11:02, Friday 14 February 2025
H1 SQZ
camilla.compton@LIGO.ORG - posted 11:02, Friday 14 February 2025 (82806)
SQZT0 Powers LHO vs LLO

Sheila, Camilla

We've seen our SHG power drop with LVEA temperature swings (8278782057), green REFL has also been increasing a little since our OPO crystal spot move, meaning our losses are increasing. Comparing our current powers to LLO's below:

Intereststing that LLO send in less SHG launch power than us but have a much higher NLG.

  LHO LLO
IR Laser 815mW 930mW
PMC Trans 680mW 653mW
SHG Trans 100mW 135mW
SHG launch 25mW 20mW
OPO Trans 60uW 140uW (from 75096, medm unclear)
OPO REFL DC 1.5mW 2.3mW
NLG
10.2 in 82202 with 80uW.
Expect lower with 60uW OPO trans
19 (from 75096)
CLF launch 0.07mW 0.19mW?
FC launch 6.6mW 26mW