sheila.dwyer@LIGO.ORG - posted 16:57, Friday 25 April 2014 - last comment - 11:38, Monday 28 April 2014(11579)
ALS DIFF noise
Sheila, Alexa, Stefan, Daniel
Attached is a spectrum, in Hz/rt Hz, of the PLL control singals for ALS diff and COMM. This looks simliar to what was measured at Livingston last week.
We made changes to the LSC model to route these control signals into the input matrix to allow us to lock ALS DIFF.
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These are calibrated in Hz, the spectra plotted above. The first column is frequency, the second is COMM ASD in HZ/rt Hz,the third DIFF ASD in Hz/rt Hz.
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