有限包层Bragg光纤模式的分类与特性研究  

Classification and properties of modes in Bragg fibers with a finite number of H/L layers

作　　者：廖同庆[1] 刘波[1] 吴昇[2] 

机构地区：[1]安徽大学电子信息工程学院,安徽合肥230039 [2]合肥师范学院计算机系,安徽合肥230601

出　　处：《光学技术》2014年第2期167-171,共5页Optical Technique

基　　金：博士点基金(20123401120008);安徽高校省级科学研究重点项目(KJ2012A241)

摘　　要：Bragg光纤是一种具有全向反射光子带隙的新型微结构光纤。分析了无限包层Bragg光纤中的模式,在此基础上对有限包层Bragg光纤中传输的模式进行了分类。通过对比研究无限包层Bragg光纤中的模式,把有限包层Bragg光纤的模式分为准导模、PML模和泄漏模,并对上述模式的特性进行了简要分析。Bragg fiber is a new kind of microstructure fiber with wide-or omni-directional bandgap guidance. The mode of Bragg fibers with infinite number of H/L layersis analyzed, which paves the way for the classification of Bragg fibers with finite number of H/L layers. In comparative study of the properties of Bragg fibers with infinite number of H/ L layers, three modes can be classified in Bragg fibers with finite number of H/L layers in terms of the mode of spectrum. They can be identified as quasi-guided mode, leaky mode and PML mode, and their different properties are analyzed.

关 键 词：BRAGG光纤 有限包层Bragg光纤 准导模 泄漏模 PML模 

分 类 号：TN929.11[电子电信—通信与信息系统]