An accelerometer system comprising: a resonator; a light-emitting device configured to generate, based on an error signal, an optical signal; a modulator configured to: receive the optical signal; generate a modulated optical signal responsive to receiving the optical signal; and output the modulated optical signal to the resonator; a photoreceiver configured to: receive a passed optical signal from the resonator, wherein the passed optical signal represents a portion of the modulated optical signal which passes through the resonator, the passed optical signal indicating a resonance frequency of the resonator; receive a reflected optical signal from the resonator, wherein the reflected optical signal represents a portion of the modulated optical signal which is reflected by the resonator; and generate one or more electrical signals based on the passed optical signal and the reflected optical signal; and processing circuitry configured to: generate the error signal based on one or more parameters of the reflected optical signal which are indicated by the one or more electrical signals; and determine the acceleration based on the resonance frequency which is indicated by the one or more electrical signals. a resonator; a light-emitting device configured to generate, based on an error signal, an optical signal; a modulator configured to: receive the optical signal; generate a modulated optical signal responsive to receiving the optical signal; and output the modulated optical signal to the resonator; receive the optical signal; generate a modulated optical signal responsive to receiving the optical signal; and output the modulated optical signal to the resonator; a photoreceiver configured to: receive a passed optical signal from the resonator, wherein the passed optical signal represents a portion of the modulated optical signal which passes through the resonator, the passed optical signal indicating a resonance frequency of the resonator; receive a reflected optical signal from the resonator, wherein the reflected optical signal represents a portion of the modulated optical signal which is reflected by the resonator; and generate one or more electrical signals based on the passed optical signal and the reflected optical signal; and receive a passed optical signal from the resonator, wherein the passed optical signal represents a portion of the modulated optical signal which passes through the resonator, the passed optical signal indicating a resonance frequency of the resonator; receive a reflected optical signal from the resonator, wherein the reflected optical signal represents a portion of the modulated optical signal which is reflected by the resonator; and generate one or more electrical signals based on the passed optical signal and the reflected optical signal; and processing circuitry configured to: generate the error signal based on one or more parameters of the reflected optical signal which are indicated by the one or more electrical signals; and determine the acceleration based on the resonance frequency which is indicated by the one or more electrical signals. generate the error signal based on one or more parameters of the reflected optical signal which are indicated by the one or more electrical signals; and determine the acceleration based on the resonance frequency which is indicated by the one or more electrical signals. <EOS>