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 dispersion and nonlinear property of highly nonlinear photonic crystal fiber (HNLPCF) are simulated with the vectorial beam propagation method. The effective area of fundamental mode Aeff, nonlinear coefficient γ and dispersive coefficient D are evaluated. The relationship between Aeff, γ and D with the pitch Λ and hole diameter d, is analyzed. The dispersion and nonlinear property of highly nonlinear photonic crystal fiber can be controlled by the structural parameters, Λ and d.