NAOJ GW Elog Logbook 3.2
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NaokiAritomi - 22:47, Friday 04 October 2019 (1695)
CC2 free running phase noise when filter cavity is locked and aligned with dithering
[Aritomi, Yuhang]
We measured CC2 free running phase noise when filter cavity is locked and aligned with dithering (attached picture). We cannot lock CC2 stably since piezo actuation range is not enough. We'll try to feedback CC2 error signal at low frequency to input mirror of filter cavity.
CC error signal
CC1: 35.6mV
CC2: 162mV
Images attached to this report
