摘要
从非线性薛定谔方程出发,利用傅里叶方法进行分析,通过MATLAB进行数值模拟验证,分析了自相位调制(SPM)、群速度色散(GVD)和初始啁啾对单模光纤中传输的超高斯脉冲的影响。分析结果表明单模光纤的SPM和GVD效应引起的频率啁啾与超高斯脉冲的阶数m有关。SPM引起的频率啁啾仅发生在脉冲沿附近,呈非线性变化。
The effects of self-phase modulation(SPM),group velocity dispersion(GVD)and initial chrip on the transmission waveform of super Gaussian pluse transmitted in single-mode fiber were analyzed by using Fourier method,which was based on the nonlinear Schrodinger equation and numerical simulation by MATLAB.Analysis results show that the frequency chrip induced by SPM and GVD is related to the order m of super Gaussian pulse.The frequency chrip caused by SPM only occurs near the pulse edge and is nonlinear.
作者
蔡培君
CAI Peijun(Department of Science and Technology, Jianghuai College of Anhui University, Hefei 230039, China)
出处
《沈阳大学学报（自然科学版）》
CAS
2022年第3期205-209,F0002,F0003,共7页
Journal of Shenyang University：Natural Science
基金
安徽省高等学校自然科学研究重点项目(KJ2017A790)
安徽大学江淮学院校级重点项目(2019KJ0002)。
关键词
单模光纤
超高斯脉冲
群速度色散
自相位调制
初始啁啾
single-mode fiber
super Gaussian pluse
group velocity dispersion
self-phase modulation
initial chrip
