椭圆孔六角点阵聚合物光子晶体光纤的偏振特性研究  

Polarization properties of polymer photonic crystal fiber with hexagonal lattice elliptical air-holes

作　　者：许强[1,2] 苗润才[1] 张亚妮[2,3] 

机构地区：[1]陕西师范大学物理学与信息技术学院,陕西西安710062 [2]宝鸡文理学院物理与信息技术系,陕西宝鸡721016 [3]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,陕西西安710119

出　　处：《量子电子学报》2012年第1期114-119,共6页Chinese Journal of Quantum Electronics

基　　金：国家第43批博士后科学基金(20080431258);陕西省科学技术研究计划项目(2010K01-078;2011K02-08);陕西省教育厅自然科学专项基金(08JK214);宝鸡文理学院重点项目(ZK1015)

摘　　要：基于全矢量平面波方法,以聚甲基丙烯酸甲酯为基材,设计了一种高双折射光子晶体光纤,并对其传输性质和偏振特性进行了数值模拟。结果表明,椭圆孔六角点阵聚合物光子晶体光纤的双折射是由于包层的不对称性引起的全局双折射,通过调节椭圆率,发现该光纤可以以单模方式在一合适波段运行,该波段与聚合物光纤的低损耗通信窗口一致。在η=2.5时,其双折射最高可达4.8×10^(-2)。该研究结果为高双折射聚合物光子晶体保偏光纤的制备提供了理论依据。The polarization properties and propagation characteristics of polymer photonic crystal fibers with elliptical air-holes and hexagonal structure are investigated by using the full vectorial plane wave method. The results show that birefringence of the fiber is induced by asymmetries of cladding. Moreover, by adjusting the elliptical ratio of cladding, the optimized design parameters of fiber with birefringence were found, operating in a single mode regime at an appropriate wavelength range. The range of wavelength is consistent with the communication windows of polymer optical fibers. With elliptical ratio of cladding η=2.5, the fiber is able to exhibit high birefringence of 4.8 × 10-2. The conclusion is useful for preparing high birefringence polymer photonic crystal fibers.

关 键 词：纤维与波导光学 偏振特性 全矢量平面波方法 聚合物 光子晶体光纤 高双折射 

分 类 号：TN929.11[电子电信—通信与信息系统]