Design of resonant microcavities: application to optical gyroscopes

摘要

We study theoretically and numerically the effect of rotation on resonantfrequencies of microcavities in a rotating frame of reference. Cavity rotationcauses the shifts of the resonant frequencies proportional to the rotation rateif it is larger than a certain value. Below the value, a region of rotationrate exists where there is no resulting the frequency shifts proportional tothe rotation rate. We show that designing cavity symmetry as $C_{nv}$ ($n\ge3$) can eliminate this region.