Reports until 08:11, Monday 24 March 2025
H1 PSL
ryan.short@LIGO.ORG - posted 08:11, Monday 24 March 2025 (83520)
PSL 10-Day Trends

FAMIS 31078

There seems to have been a slight temperature increase in the laser, diode, and anterooms of just under 1 degF over the past day which perhaps correlates with some changes in laser performance. The NPRO output power increased while outputs of both amplifiers decreased all by small amounts, with some of their pump diodes both increasing and decreasing in output (see laser trends). This change also perhaps made the signal as read by the PMC_TRANS and FSS TPDs a bit noisier. The cooling trends look unchanged over this time period. PMC_REFL has also slightly risen over the past several days, starting before this temperature change, which I am yet unsure of the cause.

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