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堆积啁啾脉冲在单模光纤中的非线性传输特性

Characteristics of Nonlinear Transmission of Stacking Chirped Pulses in Single-Mode Fiber

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摘要

通过数值求解广义非线性薛定谔方程,分析了32路线性啁啾高斯脉冲堆积后的整形脉冲在单模光纤中的传输特性。结果表明经50 m单模光纤传输后脉冲的脉宽和包络形状基本不变; 非线性效应中的自相位调制和脉冲内Raman散射对脉冲频域特性影响较大,使频谱展宽约40 THz,中心角频率下移约10 THz; 而自陡效应,三阶色散对传输特性影响不大。

Abstract

The characteristics of nonlinear transmission of shaped pulse through the stacking 32 linearly chirped Gaussian pulses in single mode fiber were analyzed by solving the generalized nonlinear Schrdinger equation numerically. The simulating results indicate that after 50 m transmission in a single mode fiber, the duration and the envelope shape of the stacking chirped pulses have almost no change. The nonlinear effects, such as self-phase modulation and intrapulse Raman scattering, impact seriously on the spectral domain characteristics of the pulse, the spectral width is broaden about 40 THz and the center angle-frequency is downshift about 10 THz. The self-steepening effect and the third order dispersion affect the transmission characteristics little.

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中图分类号:O436

所属栏目:激光器与激光光学

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网络出版日期:0001-01-01

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周晓军:电子科技大学光电信息学院宽带光纤传输与通信网技术教育部重点实验室, 四川 成都 610054
张旨遥:电子科技大学光电信息学院宽带光纤传输与通信网技术教育部重点实验室, 四川 成都 610054
隋展:中国工程物理研究院激光聚变研究中心, 四川 绵阳 621900
王建军:中国工程物理研究院激光聚变研究中心, 四川 绵阳 621900

联系人作者:周晓军(xjzhou@uestc.edu.cn)

备注:周晓军(1955-),女,博士,教授,博士生导师,主要从事光纤技术、非线性光纤光学、光纤传感器等方面的研究。

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