Simulation and optimization of spectral parameters of resonant optical gyroscope

As a new inertial navigation device, the resonant optical gyroscope offers advantages that include high precision, device integration, impact resistance, and solid-state realization. This will be widely used in future military civil applications. Following consideration of factors affect accuracy improvement fiber optic gyroscopes, relationships among insertion loss, coupling coefficient, unit length loss cavity resonance depth, full width at half maximum, fineness transmission spectrum line are analyzed. To improve spectrum’s coefficient should controlled 0.2 coupler reduced as far possible. Additionally, laser linewidth effects on limit sensitivity It is found if less than 100 kHz, it can meet depth requirements, thus, providing technical reference for further research into integrated waveguide gyroscopes.