Extremum Seeking Control of an Optical Cavity

Abstract The frequency locking of optical cavities in the physics community has been traditionally performed using classical controllers. This approach works well as long as the system is not operating far from its linear region of operation. An optical cavity is however a highly nonlinear system and problems arise when it is affected by large disturbances. In this paper, we model the non-linearities arising in such an optical system and propose an extremum seeking controller to frequency lock the optical cavity. Simulation results are presented to validate the proposed scheme.

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