新型光学聚合物——Topas环烯烃共聚物微结构光纤的设计及特性分析  

Design and characteristics of novel optical polymer Topas COC-based microstructured optical fiber

作　　者：王豆豆[1] 王丽莉[1] 

机构地区：[1]中国科学院西安光学精密机械研究所,瞬态光学与光子技术国家重点实验室,西安710119

出　　处：《物理学报》2010年第5期3255-3259,共5页Acta Physica Sinica

基　　金：国家自然科学基金重点项目(批准号:60437020);国家高技术研究发展计划(863)(批准号:2007AA032452)资助的课题~~

摘　　要：以新型光学聚合物Topas环烯烃共聚物(折射率为1.53)为基质,设计了四种微结构聚合物光纤.应用有限元方法对各种光纤在波长0.5—2.0μm范围内的基模有效折射率、模场面积和数值孔径进行了计算.研究了结构参数对模场分布、单模特性和色散特性的影响.得出了具有极大/小模场面积、无限单模传输和平坦近零色散的光纤结构参数.与石英、聚甲基丙烯酸甲酯基质的微结构光纤相比,该光纤具有更大的数值孔径和较宽的平坦近零色散范围.为光纤的制备提供了理论指导.Four kinds of microstructured polymer optical fibers based on Topas cyclic olefin copolymer（COC） are designed. The effective index of the fundamental mode,the mode area and the numerical aperture are calculated by using the finite element method. Effects of structure parameters upon the mode field distribution,single mode property and dispersion property are discussed. Structure parameters corresponding to very large or very small effective mode area,endless single mode operation and flattened-near-zero dispersion are obtained. These fibers have larger numerical apertures compared with silica or PMMA based ones,and display flattened-near-zero dispersion.

关 键 词：微结构聚合物光纤 有限元方法 传输特性 Topas环烯烃共聚物 

分 类 号：TN253[电子电信—物理电子学]