全反射导光型光子晶体光纤的基模损耗研究  

Analysis of Fundamental Mode Losses in Total Internal Reflection Photonic Crystal Fibers

作　　者：杜海龙[1] 郑义[1] 樊心民[1] 李坤[1] 傅修远[1] 

机构地区：[1]郑州大学河南省激光与光电信息技术重点实验室,河南郑州450052

出　　处：《半导体光电》2008年第4期568-570,共3页Semiconductor Optoelectronics

摘　　要：应用多极法对全反射导光型光子晶体光纤的基模损耗进行了数值模拟,研究了结构参量如空气孔直径、孔距和包层空气孔层数等在1.31和1.55μm处对基模损耗特性的影响。研究发现,随着波长的增大,光纤基模损耗近似呈指数增大;通过选择高空气填充率的结构和增加包层空气孔的层数,都可以显著降低光纤基模损耗。其中,包层空气孔层数对基模损耗的影响最大,空气孔直径次之,孔间距最小。The fundamental mode losses characteristics of total internal reflection photonic crystal fibers （PCF） are simulated numerically by the multipole method. The effects of the structural parameters on its fundamental mode losses properties are studied such as hole diameter, hole distance and the number of the hole rings in the cladding. It is confirmed that the fundamental mode loss increases exponentially as the wavelength becomes longer the fundamental mode loss can be reduced drastically by choosing structural of high air-fill scale and increasing the hole rings in the cladding. In the three structural parameters, the hole rings influence losses most, hole diameter inferior to it, and the hole distance influences least. The calculation and the analysis can provide a certain theoretical base for the design of total internal reflection photonic crystal fibers with low fundamental mode losses.

关 键 词：全反射导光型光子晶体光纤 基模损耗 多极法 

分 类 号：TN252[电子电信—物理电子学]