Resolve dispersion equation and obtain the effective refractive index of cladding using method of numerical calculation.
推导出纤芯、包层、薄膜层、环境层的场分布表达式，利用数值计算求出了包层膜的有效折射率。
Resolve dispersion equation and obtain the effective refractive index of cladding using method of numerical calculation.
推导出纤芯、包层、薄膜层、环境层的场分布表达式，利用数值计算求出了包层膜的有效折射率。
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