Fig. 6
From: Optical backaction-evading measurement of a mechanical oscillator
Coherent response determination of detuning and linewidth. a Simplified setup for optical measurements using coherent response (part of the full experimental setup). b An example of a measurement with a fit Eq. (17), yielding cavity linewidth κ and detuning Δ. A correction due to extraneous frequency-dependent response, measured and shown in the inset, is included in the fit
