Supercontinuum Generationin Normal-dispersion Photonic Crystal Fiber Using Picosecond Pulse  

作　　者：YAO Li HE Li YANG Bo-jun 

机构地区：[1]Key Laboratory of Optical Communication and Lightwave Technologies,Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, CHN

出　　处：《Semiconductor Photonics and Technology》2007年第4期256-260,共5页半导体光子学与技术（英文版）

基　　金：National Natural Science Foundation of China(60578043 , 60378011) ;Public Construction Foundation ofBeijing City(XK100130637)

摘　　要：Studied is the Super-continuum(SC) generation of a normal-dispersion photonic crystal fiber(PCF) using picosecond pulse excitation. In experimental analyses, a 237 nm broadband infrared continuum was generated pumped at 1 550 nm(normal dispersion regime) by 1.6 ps pulses from an erbium-doped fiber laser. In addition, we conduct the numerical analyses of SC based on generalized nonlinear Schr dionger equation. The results have been applied to investigate the dominant physical processes underlie the generation of SC. We conclude that dispersion, self-phase modulation(SPM),four-wave-mixing(FWM) and Raman scattering are determinants of SC generation rather than fission of soliton in normal-dispersion PCF.Studied is the Super-continuum （SC） generation of a normal-dispersion photonic crystal fiber （PCF） using picosecond pulse excitation. In experimental analyses, a 237 nm broadband infrared continuum was generated pumped at 1 550 nm（normal dispersion regime） by 1.6 ps pulses from an erbium-doped fiber laser. In addition, we conduct the numerical analyses of SC based on generalized nonlinear Schr dionger equation. The results have been applied to investigate the dominant physical processes underlie the generation - of SC. We conclude that dispersion, self-phase modulation （SPM）, four-wave-mixing （FWM） and Raman scattering are determinants of SC generation rather than fission of soliton in normal-dispersion PCF.

关 键 词：SUPERCONTINUUM photonic crystal fiber PICOSECOND 

分 类 号：TN929.11[电子电信—通信与信息系统]