光子晶体光纤宏弯曲损耗特性的理论分析  

Theoretical analysis on macro-bending loss characteristics of photonic crystal fibers

作　　者：陈波[1] 彭艳杰[1] 杨广强[2] 张霞[3] 黄永清[3] 任晓敏[3] 

机构地区：[1]装备指挥技术学院士官系,北京102249 [2]信息产业部电信研究院规划设计所,北京100037 [3]北京邮电大学光通信与光波技术教育部重点实验室,北京100876

出　　处：《光通信技术》2006年第3期60-62,共3页Optical Communication Technology

基　　金：973项目(编号:2003CB314906)资助;863项目(编号:2003AA311010)资助。

摘　　要：利用有效折射率模型对全内反射型光子晶体光纤的宏弯曲损耗特性进行了理论研究,分析了光子晶体光纤的结构参量和弯曲半径对其宏弯曲损耗谱的影响,计算了某些结构参量的光子晶体光纤在1.55μm波长处的临界弯曲半径。研究表明,光子晶体光纤的弯曲损耗特性与其结构参量密切相关。The macro-bending loss characteristics of photonic crystal fibers （PCF） is studied by effective index method. The effect of structure parameters and bending radius on macro-bending loss properties is investigated. critical bending radius of some PCF are calculated with wavelength at 1.55μm. It is shown that the macro-bending loss property of PCF depend strongly on the structure parameters： a larger relative hole size results in lower loss and broader operational window; and the air-hole pitch influence dominantly the centre position of the operational window, a larger air-hole pitch results in larger centre wavelength of operational window.

关 键 词：光子晶体光纤 弯曲损耗 有效折射率模型 

分 类 号：TN929.11[电子电信—通信与信息系统]