双环芯微结构光纤特性分析  

Microstructured Optical Fiber with Twin-Ring Core

作　　者：郝瑞宇[1,2] 李录[1,2] 杨荣草[1,2] 周国生[1,2] 

机构地区：[1]山西大学物理电子工程学院 [2]量子光学与光量子器件国家重点实验室,太原030006

出　　处：《光学与光电技术》2006年第2期37-38,共2页Optics & Optoelectronic Technology

基　　金：国家自然科学基金(60244006)山西省自然科学基金(20041036)资助项目

摘　　要：提出了一种由硅-空气孔作包层,两个环状掺杂区作芯的双环芯微结构光纤,并用有限差分法对它进行了分析。结果表明,基模电场能由弱到强地集中在双环掺杂的芯区,且环外较弱, 环心最强。在1．55 μm波段,有较大色散,这在光纤色散补偿中将起到重要作用。A microstructured optical fiber with twin ring core and Si air cladding is presented. Using Finite-Difference Method, the properties of this kind of fiber are analyzed. The results show that electric field of the fundamental mode is centralized in twin-ring core area. The field outside the ring is much weaker, On the other hand, the dispersion is stronger in the vicinity of about 1. 55 μm, which is important to the compensation of fiber dispersion.

关 键 词：双环芯 微结构光纤 有限差分法 基模电场 

分 类 号：TN913.7[电子电信—通信与信息系统]