peter.king@LIGO.ORG - posted 07:00, Friday 15 April 2016 - last comment - 07:22, Friday 15 April 2016(26603)
Injection locking performance and power fluctuations
Attached are plots of the power fluctuations from the HPO and its PZT. The fluctuations in the HPO
power seem to coincide with the variations in the PZT voltage. Both have a period of about 70 minutes.
We may have to reduce the injection locking servo gain.
Also attached is a plot of the free running power fluctuations transmitted by the pre-modecleaner
and the output of the HPO.
Images attached to this report
Comments related to this report
The power fluctuations observed in the HPO output are not due to fluctuations in the NPRO output but might be due to the front end laser.
Images attached to this comment
