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.
出处
《光通信技术》
CSCD
北大核心
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。
关键词
光子晶体光纤
弯曲损耗
有效折射率模型
optical communication
macro-bending loss
effective index model
photonic crystal fiber.
