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介绍了偏振态的概念，分析了光纤环形谐振腔的谐振特性，对环形谐振腔光纤陀螺中减小偏振噪声的几种方法进行了研究，这对抑制偏振噪声，进一步改善环形腔光纤陀螺的性能，提高陀螺的检测精度有一定的指导作用。
The concept of polarization state is introduced. The resonant characteristics of the fiber ring resonator are analyzed. Several methods to reduce the polarization noise in the ring resonator fiberoptic gyro are studied. This method can suppress the polarization noise and further improve the performance of the ring resonator , To improve the detection accuracy of the gyro has a certain guiding role.