利用JONES矩阵对基于高双折射光纤Sagnac环的反射光谱特性进行了理论分析,得出了偏振控制器、耦合比、高双折射光纤长度和折射率差及入射光偏振方向对其反射谱线的影响,计算结果与已报道的实验数据相符合。结论对设计制作不同性能的Sagnac型环形镜及相关器件等具有一定参考价值。 Based on the JONES matrix, the reflection spectra of high-birefringence Sagnac rings were analyzed theoretically. The effects of polarization controller, coupling ratio, length of high birefringence fiber and refractive index difference and the polarization direction of incident light on the reflection line Influence, the calculation result is consistent with the reported experimental data. Conclusions The design of Sagnac toroidal mirrors with different properties and related devices have some reference value.