光子晶体光纤的色散特性分析  

The analysis on dispersion property of photonic crystal fiber

作　　者：曾剑春[1] 阮双琛[1] 于永芹[1] 

机构地区：[1]深圳大学工程技术学院,深圳518060

出　　处：《深圳大学学报（理工版）》2006年第1期25-30,共6页Journal of Shenzhen University(Science and Engineering)

基　　金：广东省自然科学基金资助项目(031809)

摘　　要：利用矢量有限元法对零色散点在825nm的大空气孔光子晶体光纤进行模拟计算,在考虑石英基质的材料色散前提下,得到光纤的色散曲线.与实验数据对比,证明该计算方法的准确.同时调节光纤包层的空气孔分布及其占空比,得到不同光纤的色散特性曲线,发现增大包层空气孔直径或空气孔占空比可以使零色散点向短波长方向移动,通过改变包层空气孔分布可灵活设计色散位移光纤.The large air-hole photonic crystal fiber with zero dispersion wavelength of 825nm was simulated by vector finite element method, and its dispersion curve was obtained if the material dispersion of silica was considered. Compared with the experimental data, the simulation results have demonstrated the effectiveness of this proposed analysis method. Furthermore, the dispersion curves of the different fibers were obtained by adjusting air-hole diameter and distribution in the cladding, which indicates that the zero dispersion wavelength becomes shorter by increasing airhole diameter or duty cycle of air-hole, and that the dispersion displacement fiber can be flexibly designed by changing air-hole distribution.

关 键 词：光子晶体光纤 色散 有限元法 

分 类 号：TN248.1[电子电信—物理电子学]