在某些情况下，彩色条纹，可以用来评估双折射的，因为每种颜色波段关联度应力在检查的样本。
In some cases, the color fringes can be used to evaluate birefringence, since each color band correlates to the degree of stress in the inspected sample.
本文研究了计算保偏光纤中应力双折射特性的微元算法，对其计算值进行了理论验证。
In this paper, we study theoretically infinitesimal element method for calculation of stress birefringence in polarization maintaining fibers.
初双折射或被冻结的双折射，可用一个等效或有效应力状态来代替。
The initial or frozen-in double refraction is replaced by an equivalent or virtual state of stress.
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