八角格子光子晶体光纤模式和色散特性研究  

Study on the mode and dispersion properties of octagonal photonic crystal fibers

作　　者：陈静[1] 谭晓玲[2] 

机构地区：[1]许昌学院电气信息工程学院,河南许昌461000 [2]天津大学精密仪器与光电子工程学院激光与光电子研究所,天津300072

出　　处：《光通信研究》2009年第2期47-49,共3页Study on Optical Communications

基　　金：河南省教育厅自然科学研究项目(2008A510013);许昌学院校内科研基金资助项目(2008113)

摘　　要：文章基于带有各向异性完全匹配层(PML)吸收边界条件的紧凑二维频域有限差分法对八角格子光子晶体光纤(O-PCF)的模式和色散特性进行了研究。利用有效面积法分析了八角格子和六角格子光子晶体光纤(H-PCF)的基模和多模截止特性,得到非限制模、基模及多模的相图。比较发现,填充率和空气孔间距相同时,O-PCF的单模运转区域宽于H-PCF,更易用于色散补偿。On the basis of a compact two-dimensional frequency domain finite difference method with anisotropic Perfectly Matched Layers（PML） absorbing boundary conditions, the mode and dispersion properties of the octagonal Photonic Crystal Fiber（PCF） is investigated. The fundamental mode and the multimode cut-off properties of the octagonal and hexagonal PCFs are analyzed by using the effective area method and the phase diagrams of the non finite mode, fundamental mode and multimode obtained. Their comparisons show that with the same filling fraction and air hole pitch, O-PCF has wider single mode operation region and is more apt to be used for dispersion compensation than H-PCF.

关 键 词：光子晶体光纤 完全匹配层 频域有限差分法 模式截止 有效面积 

分 类 号：TN929.11[电子电信—通信与信息系统]