基于小圆孔结构纤芯的高双折射光子晶体光纤  

Highly Birefringent Photonic Crystal Fibers Based on Micro-hole-structured Fiber Core

作　　者：何忠蛟[1] 

机构地区：[1]浙江工商大学信息与电子工程学院,杭州310035

出　　处：《光子学报》2008年第11期2217-2221,共5页Acta Photonica Sinica

摘　　要：为了实现高双折射光子晶体光纤,提出了一种在纤芯中引入微小圆孔的方法.利用全矢量有限元方法和完美匹配层条件研究了基于圆孔微细结构纤芯的光子晶体光纤的双折射特性.讨论了纤芯圆孔数量、孔径、间隔距离对光纤双折射特性的影响;设计了一种双折射达到10-2量级的光子晶体光纤.模拟结果表明采用三个以上圆孔可以获得较大的双折射,增大外包层数目可以有效减小约束损耗.A method by employing circular micro holes in the fiber core was proposed to achieve highly birefringent photonic crystal fibers （PCFs）. The birefringence property of highly birefringent PCFs was investigated by employing a full-vector finite-element method （FEM） and anisotropie perfectly matched layers. The relationship between the birefringence and the number, diameter and distance of the circular holes in the fiber core was discussed. A PCF with birefringence up to an order of 10^-2 was designed. Simulation results showed that larger birefringence can be achieved by employing three or more circular holes in the fiber core, and the confinement loss of the PCF can be reduced by increasing the ring number of the fiber cladding holes.

关 键 词：光子晶体光纤 双折射 约束损耗 有限元方法 

分 类 号：TN25[电子电信—物理电子学]