单模色散位移光纤的高斯近似理论

Gaussian Based Approximation for Modeling Dispersion Shifted Single Mode Fibres

本文基于高斯近似建立了一种研究单模色散位移光纤的理论模型。可以直接从实测的色散位移光纤本身或其预制棒的径向折射率分布计算出光纤的色散、模场直径（ＭＦＤ）和非线性效应有效截面积等参数。理论计算和用仪表实测的光纤传输参数相比较得到了满意的结果。

Modeling of single mode Dispersion Shifted Fiber(DSF)based on the Gaussian approximationis is proposed in this paper.It can be used to calculate the dispersion,Mode Field Diameter(MFD),and the effective area for non linear interaction from the fiber or preform refractive index profiles Calculated and measured results agreed well with each other.