分析了光波在各界面折射时偏振态的变化，提出了会聚偏光干涉合成振幅的计算方法。
Changes of light polarization in each interface are analyzed and the method to calculate total amplitude in convergent polarized light interference is proposed.
具体分析推导了光线入射角变化对这种新型的可调横向剪切量萨伐尔偏光镜的光程差、偏振度以及对系统干涉条纹的影响；
The effect of the incident angle on the optical path difference, state of polarization and interference fringes of the system is deduced in detail.
基于白光干涉原理，研制成功高双折射保偏光纤分布式偏振耦合测试仪一台。
An instrument measuring the distributed polarization coupling in high birefringence polarization-maintaining fiber (PMF) is developed based on white light interferometry.
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