基于谐振吸收效应的单模单偏振光子晶体光纤研究

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.

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

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.