六边形晶格多孔光纤偏振拍长的消色差特性研究  

Polarization-Beat-Length-Based Achromatic Characteristics of Holey Birefringence Fiber with Hexagonal Lattice

作　　者：刘珍[1] 石志东[1] 杨少林[1] 张海燕[1] 毛艳萍[1] 解清明[1] 

机构地区：[1]上海大学特种光纤与光接入网省部共建重点实验室,上海200072

出　　处：《激光与光电子学进展》2013年第10期61-66,共6页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(11074164;61107075;11274226);上海市重点学科和科委重点实验室项目(S30108;08DZ2231100);上海市教委创新基金(11YZ17)

摘　　要：针对六边形晶格微结构光纤,采用有限差分波束传播法对多孔光纤的模式双折射特性进行数值模拟,分析了横截面结构参数的变化对模式双折射的影响。得到了两组合适的光纤结构参数,其偏振拍长可以在较宽的波长范围内基本保持稳定,具有较好的消色差特性:一种结构的偏振拍长在1310nm波长附近的工作带宽可达200nm;另一种结构的偏振拍长在1550nm波长附近的工作带宽可达260nm。这两种结构的光纤均适合制作宽带稳定的消色差波片。In view of the hexagonal lattice micro-structure optical fiber, the modal birefringence characteristics of holey fiber are simulated by the finite difference beam propagation method. The influence of the different cross- section structural parameters on modal birefringence is analyzed. Two groups of appropriate structural parameters are obtained. The polarization beat lengths of these structures remain stable in a wide wavelength range,and thus better achromatic characteristics can be got. The working bandwidths of these structures reach 200 nm near the 1310 nm communication window and 260 nm near the 1550 nm communication window, respectively. The fibers are suitable for making wideband achromatic wave plates.

关 键 词：光纤光学 多孔光纤 模式双折射 偏振拍长 波长敏感性 

分 类 号：TN253[电子电信—物理电子学]