cheryl.vorvick@LIGO.ORG - posted 14:23, Tuesday 31 July 2018 - last comment - 16:51, Tuesday 31 July 2018(43151)
Large Area DC PD installed on EOM pickoff path
I removed the small area PD and installed the large area PD, a Throlabs PDA100A. The measured power on the PD is 7.09mW, and the gain on the PD is set to 0dB. The small area PD beam had been blocked for a while, hampering a comparison to the new PD. The new PD offsets and gains have not been set, work in progress.
Images attached show:
- old PD
- new PD with power meter
- power meter reading
- front of the new PD
- top of the new PD, including gain
- side view of new PD and cable routing
- new PD cable plugged into the power supply
This change completes the work for ECR E1300432, and FRS 4588.
- Cheryl, Jason, Fil
Images attached to this report
Comments related to this report
Preliminary calibration attached, work in progress, but reading a not crazy value for the main beam after the EOM.
Images attached to this comment
