1.55μm处具有宽带平坦色散的光子晶体光纤设计  

Calculation and Design of Photonic Crystal Fibers with Broadband Flattened Dispersion Property Around 1.55 μm

作　　者：王子涵[1] 王清月[1] 栗岩峰[1] 胡明列[1] 

机构地区：[1]天津大学精密仪器与光电子工程学院超快激光研究室

出　　处：《光电子．激光》2005年第5期629-633,共5页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金资助项目(60278003);国家重点基础研究发展计划资助项目(2003CB314904);国家高技术研究发展计划资助项目(2003AA311010)

摘　　要：从光子晶体光纤(PCF)的包层基模理论出发,采用全矢量有效折射率方法对在光纤通信窗口1.55μm附近具有宽带平坦色散特性的PCF进行了数值模拟。将PCF的总色散分为材料色散和波导色散2部分进行计算,并利用波导色散的归一化性质即可设计在1.55μm波段具有×102 甚至数×102 nm带宽的宽带平坦正常、反常或零色散特性的PCF。Photonic crystal fibers, also referred to as holey fibers or microstructured optical fibers, are the generic term for a new class of all silica optical fibers whose cladding typically comprises a hexagonal array of air holes running along the entire length. From the theory of fundamental space-filling mode of photonic crystal fibers (PCFs), the PCFs with broadband flattened dispersion property around the telecommunication window (around 1.55 μm are investigated by a full vectorial effective index method in this paper. The total dispersion of photonic crystal fibers is obtained by summing up material dispersion and waveguide dispersion. Using the normalized property of waveguide dispersion, the photonic crystal fibers (PCFs) with more than one hundred or even several hundred nanometers broadband ultra-flattened normal, anomalous, and zero dispersion property around 1.55 μm coere designed.

关 键 词：光纤设计 平坦色散 宽带 光子晶体光纤 色散特性 波导色散 有效折射率 PCF 数值模拟 光纤通信 材料色散 模理论 归一化 包层 波段 反常 

分 类 号：TN253[电子电信—物理电子学] TP393[自动化与计算机技术—计算机应用技术]