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本专利介绍用一种偏振光源提高Sagnac环形干涉仪信号质量的情况。由光源发出的入射波被分成两种偏振模式。位于偏振分束器前面的双折射元件引入一个程差,该程差大于两个偏振波之间的光源的相干长度。采用双折射
This patent describes the use of a polarized light source to improve the Sagnac ring interferometer signal quality. The incident wave emitted by the light source is divided into two polarization modes. The birefringent element located in front of the polarization beam splitter introduces a path difference which is greater than the coherence length of the light source between the two polarized waves. Birefringence