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andrei.danilin@LIGO.ORG - posted 11:05, Wednesday 03 July 2024 (78835)
Optical gain for IR

Andrei, Naoki, Sheila

Following the aLOG 78726, we've calculated the Optical Gain [counts/μm] from FC_IR_OLTF following steps in Diagram. This transfer function will be used to calibrate the FC mirror movement from its Error signal for later use in RIN estimation and backscattering measurements. Inferred Optical Gain plot can be found here: inferred_OG_with_fit.png. Cavity pole frequency is estimated as 34 Hz.

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