Reports until 14:01, Tuesday 19 March 2019
H1 CAL
yannick.lecoeuche@LIGO.ORG - posted 14:01, Tuesday 19 March 2019 (47669)
EY pcal transmitter module maintenance

Rick, Niko,

Performed Pcal Tx maintenance at EY this morning. Laser output power is at a reasonable level, but the AOM diffraction efficiency is a good deal worse than we expect it to be. We would like to take a future maintenance day to tune up the AOM.

(OFS Open Loop Transfer Function Bode plot not included, did not save correctly to the flash drive)

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