本文从非线性薛定谔方程出发,应用分步傅立叶变换法仿真超高斯脉冲在常规单模光纤(G.652)1550nm波段上的传输。分析了二阶群速度色散(GVD)、自相位调制(SPM)对传输特性的影响,讨论了输入功率变化以及有初始啁啾情况时脉冲的演变情况,从而得出了在负色散区域实现光脉冲无啁
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Transmission analysis of the super-Gaussian pulse in a
conventional single-mode fiber
Lu Qingqing
Key Laboratory of Optical Communication and Lightwave Technologies of Ministry of Education,
Beijing University of Posts and Telecommunications, Beijing (100876)
Abstract
In this paper, starting from the nonlinear Schrodinger equation, we get simulation of super-Gaussian pulse transmission in a conventional single-mode fiber (G.652) at the 1550nm band by split-step Fourier transform method. The impact of the second-group velocity dispersion (GVD) and self-phase modulation (SPM) to the transmission characteristics is analyzed, the impacts of input power changes and initial chirp on the propagation of pulses are also discussed. Accordingly, we get conditions of the stable transmission without chirp in the negative dispersion region.
Keywords:conventional single-mode fiber (G.652) second-group velocity dispersion (GVD) self-phase modulation (SPM) chirped-pulse
作者简介:鹿晴晴,女,硕士研究生,主要从事光纤色散,非线性特性的研究。