空气孔正方形排列的低损耗高双折射光子晶体光纤的数值模拟  

Numerical simulation of square-lattice photonic crystal fiber with high birefringence and low confinement loss

作　　者：李曙光[1] 邢光龙[1] 周桂耀[1] 侯蓝田[1] 

机构地区：[1]燕山大学理学院红外光纤与传感研究所

出　　处：《物理学报》2006年第1期238-243,共6页Acta Physica Sinica

基　　金：国家重点基础研究发展规划(批准号:2003CB314905);国家高技术研究发展计划(批准号:2003AA311011);海湾安全技术有限公司博士后工作站资助的课题~~

摘　　要：提出了一种正方形排列渐增空气孔高双折射光子晶体光纤,并利用多极方法对光纤基模的模场分布、色散、双折射以及损耗特性进行了数值模拟.模拟结果表明利用这种结构可以在包层空气孔层数较少的情况下实现极低的限制损耗,通过调节内层空气孔的分布可以有效地控制光纤的双折射和色散特性.本结果对高双折射光子晶体光纤的制备具有一定的指导意义.In this paper a square-lattice photonic crystal fiber with gradually increasing air-holes in a silica matrix has been put forward for the first time. The model field, dispersion, birefringence and confinement loss of the fibre fundamental mode are simulated by multipole method. It is found that low confinement loss can be realized under condition of fewer rings of air holes. Simulation shows that birefringence and dispersion of this square-lattice PCF are dominated by inner-ring air holes in the fibre. The simulation results of this paper are highly instructive for the fabrication of birefringent photonic crystal fibers.

关 键 词：光子晶体光纤 双折射 限制损耗 多极方法 

分 类 号：TN253[电子电信—物理电子学] TP212[自动化与计算机技术—检测技术与自动化装置]