基于谐振吸收效应的单模单偏振光子晶体光纤研究  

Numerical investigation on single-mode single-polarization photonic crystal fiber using resonant absorption effect

作　　者：刘小毅[1] 张方迪[1] 张民[1] 叶培大[1] 

机构地区：[1]北京邮电大学光通信与光波技术教育部重点实验室,北京100876

出　　处：《物理学报》2007年第1期301-307,共7页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:60372100和60507007);国家重点基础研究发展规划(批准号:2003CB314906)资助的课题~~

摘　　要：提出了一种基于谐振吸收效应的单模单偏振光子晶体光纤,阐述了其工作原理,并利用全矢量有限元法对其模场分布、限制损耗、工作带宽、消光比等基本特性进行了数值模拟.数值结果表明这种结构可以获得很高的单模单偏振工作带宽,并能以较低的损耗代价实现极高的消光比.讨论了结构设计参量对光纤性能的影响.研究结果对设计新型的高性能单模单偏振光纤具有一定的指导意义.In this paper, a novel single-mode single-polarization photonic crystal fiber using resonant absorption effect has been put forward for the first time. A full vector finite element method is employed to simulate the fiber properties, including mode field distribution, confinement loss, bandwidth and extinction ratio. Numerical results show that very large bandwidth of single-mode single-polarization operation can be attained and extremely high extinction ratio can be achieved with low loss penalty. The influence of structural parameters on the fiber performance has been investigated. The research results will be instructive for the design and fabrication of new high performance single-mode single-polarization fibers.

关 键 词：电子晶体光纤 单模单偏振 双折射 有限元 

分 类 号：TN253[电子电信—物理电子学]