基于光子晶体光纤的色散补偿和色散平坦技术

Dispersion Compensation and Dispersion Flatten Technique in Photonic Crystal Fibers

本文介绍了在各种结构参数下光子晶体光纤的色散特性,总结了实现光子晶体色散补偿光纤和光子晶体色散平坦光纤的各种设计方法。利用光子晶体光纤结构设计的灵活性,可以设计出具有各种色散曲线的光子晶体光纤,而这些光纤大略可以分成两类:空气孔直径大小一致的普通光子晶体光纤和空气孔直径大小变化的光子晶体光纤。从数值仿真的结果来看,如果选择适当的空气孔分布结构,空气孔直径大小变化的光子晶体光纤可以具有非常优异的色散补偿和色散平坦特性。这些数值仿真为实际的光子晶体的制作提供了参考。

The dispersion properties of photonic crystal fibers （PCFs） with different structures are summarized in this paper. The method of designing dispersion compensation and dispersion flatten PCFs is also indicated. PCFs of different dispersion properties can be designed because of their controllable structures. In general these PCFs can be devided into two kinds： PCFs with same air hole layers and PCFs with various air hole layers. The numerical results, which can direct the manufacture of PCFs, show that PCFs with proper array of air hole layers have excellent dispersion characteristic.