Reports until 19:39, Monday 30 June 2025
H1 General
anthony.sanchez@LIGO.ORG - posted 19:39, Monday 30 June 2025 (85447)
PCAL Lab TX module Maintenance complete

On Friday Jun 27th Francisco and I went to the the PCAL lab and did a PCAL TX module maintenance according to T1600436.
AOM alignment was touched up

Results:

Laser SN05  
Date June-26-2025
Laser Shutter Check Fail
Max OFS Offset 7.2V
95% OFS Offset 6.84V
Operating OFS Offset 3.42V
Laser Output Power 1.97W
Rejected Laser Power 3.3mW
AOM Input Power 1.92W
Max Diffracted Power 1.23W
Un-Diffracted Power 0.500W
AOM Diffraction Efficiency 64%
AOM Rejected Power 3.3mW
TxPD Power 1.4mW
OFSPD Power 1.73mW
Outer Beam Power 294mW
Inner Beam Power 292mW
Output Beam Power Ratio 0.9932
OFS Gain 7.50V
OFS Phase Margin 43.7
ALOG  
Non-image files attached to this report