R&D (FilterCavity)
YuhangZhao - 17:40, Thursday 26 November 2020 (2291)
Comment to CCFC error signal characterization (Click here to view original report: 2289)

I checked that for optimal detuning (70Hz), the expected in-phase demodulation CCFC error signal should have normalized offset 0.91.

In this measurement, we got the in-phase demodulation CCFC error signal normalized offset to be about 0.69. I checked that for this normalized offset, the detuning set by PLL will be 43deg.

The calculation is in the attached figure.

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2291_20201126093951_35.png