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采用矢量光束传输法对不同结构参量的高非线性光子晶体光纤的非线性特性和色散特性进行了数值分析,计算得出高非线性光子晶体光纤的物理参量基模有效面积Aeff、非线性系数γ和色散系数D。分析了Aeff、γ和D与高非线性光子晶体光纤结构参量空气孔间距Λ、空气孔直径d之间的关系。分析结果表明,通过调节光子晶体光纤的结构参量可以灵活地调整高非线性光子晶体光纤的非线性特性和色散特性。
The nonlinear characteristics and dispersion characteristics of high nonlinear photonic crystal fibers with different structural parameters were numerically analyzed by vector beam transmission method. The effective area of the fundamental parameters of the nonlinear photonic crystal fiber (Aeff, nonlinear coefficient γ And dispersion coefficient D. The relationship between Aeff, γ and D and the parameters of air-core spacing Λ and air-hole diameter d of high nonlinear photonic crystal fiber is analyzed. The analysis results show that the nonlinear characteristics and dispersion characteristics of highly nonlinear photonic crystal fiber can be flexibly adjusted by adjusting the structural parameters of photonic crystal fiber.