Design of broadband nearly-zero flattened dispersion highly nonlinear photonic crystal fiber  

作　　者：娄淑琴 方宏 李宏雷 郭铁英 姚磊 王立文 陈卫国 简水生 

机构地区：[1]Key Lab of All Optical Network and Advanced Telecommunication Network of EMC,Beijing Jiaotong University,Beijing 100044

出　　处：《Chinese Optics Letters》2008年第11期821-823,共3页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (No.60777033);the Key Project of Ministry of Education of China (No.308002).

摘　　要：We propose a new structure of broadband nearly-zero flattened dispersion highly nonlinear photonic crystal fiber （PCF）. Through optimizing the diameters of the first two inner rings of air-holes and the GeO2 doping concentration of the core, the nonlinear coefficient is up to 47 W^-1.km^-1 at the wavelength of 1.55 um and nearly-zero flattened dispersion of ±0.5 ps/（nm·km） is achieved in the telecommunication window （1460 - 1625 nm）. Due to the use of GeO2-doped core, this innovative structure can offer not only a large nonlinear coefficient and broadband nearly-zero flattened dispersion but also low leakage losses.We propose a new structure of broadband nearly-zero flattened dispersion highly nonlinear photonic crystal fiber （PCF）. Through optimizing the diameters of the first two inner rings of air-holes and the GeO2 doping concentration of the core, the nonlinear coefficient is up to 47 W^-1.km^-1 at the wavelength of 1.55 um and nearly-zero flattened dispersion of ±0.5 ps/（nm·km） is achieved in the telecommunication window （1460 - 1625 nm）. Due to the use of GeO2-doped core, this innovative structure can offer not only a large nonlinear coefficient and broadband nearly-zero flattened dispersion but also low leakage losses.

关 键 词：Crystal atomic structure Crystal structure Crystal whiskers Dispersion (waves) Laser pulses Nonlinear optics Telecommunication systems 

分 类 号：TN253[电子电信—物理电子学]