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理论分析了四频差动激光陀螺中左、右旋椭圆偏振模式的非对称性。这种非对称性对激光陀螺性能的影响是至关重要的。而引起这种非对称性的物理因素是环型腔Ｓ－Ｐ相位和损耗的各向异性。
The asymmetry of the left-handed and right-handed ellipsometric modes in a four-frequency differential laser gyro is theoretically analyzed. The effect of this asymmetry on the performance of a laser gyro is of crucial importance. The physical factor causing this asymmetry is the anisotropy of the ring cavity S-P phase and loss.