由于四频差动激光陀螺中四个模式偏振态、运行方向的不同，各模式具有不同的单程损耗。
Modes in four frequency differential laser gyros have different round trip loss due to different polarization, propagating direction.
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。
A theoretical study of the mode difference between the left and right elliptically polarized light in the differential laser gyro is presented.
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