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本文用试探法计算不同阶跃结构单模光纤的模斑尺寸,给出了它们随相应结构参数变化的曲线,作为单模光纤结构设计的依据。
In this paper, the speckle sizes of single-mode fibers with different step structures are calculated by heuristic method, and their curves with the corresponding structural parameters are given, which are used as the basis for the design of single-mode fiber structures.