Fiber Optic Sagnac's Interferometer - Sensitivity And Drift Calculation

This paper presents the experimental and theoretical fiber optic Sagnac's interferometer investigation. Theoretical investigations are based on gyro symulation by means of Jones calculus. Experimental, all-fiber set-up was bulit in modified minimum configuration arrangement. High -birefringent fiber 400 m long wound on 0.2 m diameter loop used. Sensitivity of 0,2 deg/h and long-time drift 1.5 deg/h have been achieved.