peter.king@LIGO.ORG - posted 13:06, Tuesday 19 July 2016 - last comment - 14:47, Tuesday 19 July 2016(28494)
FSS transfer functions
Attached are some FSS transfer functions, all with a common gain slider of 20 dB. The input modecleaner was locked for all these measurements. C20F4TF.jpg: FAST gain 4 dB C20F10TF.jpg: FAST gain 10 dB C20F16TF.jpg: FAST gain 16 dB C20F22TF.jpg: FAST gain 22 dB
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Attached are all the transfer functions on the one plot. One can see that with the FAST gain
as high as 22 dB, the dip associated with the crossover between the PZT and EOM is noticeable.
The raw ASCII data is attached: frequency, magnitude, phase, magnitude, phase .... etc.
for the 4 FAST gain settings.
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Is 0 dB = 0 dB, or is -10 dB = 0 dB? If the latter, can you please make it so 0 dB = 0 dB?