| 数值模拟高阶色散和非线性对光孤子传输的影响 |
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| 引用本文： | 蔡托,赵华.数值模拟高阶色散和非线性对光孤子传输的影响[J].光散射学报,2009,21(2):115. |
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| 作者姓名： | 蔡托 赵华 |
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| 作者单位： | 黔南民族师范学院物理与电子科学系,贵州,都匀,558000 |
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| 摘 要： | 光孤子传输中的高阶色散以及高次非线性效应是光纤通讯发展的重要制约因素。从光孤子在光纤中的一般传输方程出发, 在较大的入纤功率的前提下, 综合考虑了高阶色散、五次非线性和损耗因素, 得到其具体传输方程, 并据此从理论上分析了高阶色散和非线性对光孤子传输性能的影响。本文采用分步傅里叶方法, 以MATLAB为实现工具, 实现高阶色散和非线性对光孤子传输影响的模拟计算, 并深入分析了高阶色散和非线性导致的孤子脉冲频移现象。计算结果表明: 在入射功率较大的时候, 高阶色散效应不可忽略。当五次非线性γ2>0时,孤子脉冲主峰发生微小频移; 而当五次非线性γ2<0时, 孤子脉冲主峰基座产生微小频移; 当高阶色散β3>0时频率出现红移, 而当β3<0时, 频率出现蓝移。
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| 关 键 词： | 高阶色散 分步傅里叶方法 光孤子 |
| 收稿时间： | 2008/9/22 |
Simulation the Effect of High-order Dispersion and Nonlinean on Optical Soliton Transmission |
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| CAI Tuo,ZHAO Hua.Simulation the Effect of High-order Dispersion and Nonlinean on Optical Soliton Transmission[J].Chinese Journal of Light Scattering,2009,21(2):115. |
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| Authors: | CAI Tuo ZHAO Hua |
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| Institution: | Department of Physics & Electronic Science;Qiannan Normal College for Nationalities;Duyun 558000;China |
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| Abstract: | The effect of high-order dispersion and high-order nonlinearity are always the key restriction factors of the optical soliton transmission in the optical fiber communication systems.In this paper,based on the ideal ground state optical soliton transmission equation,and higher incoming optical fiber power is assumed,the optical soliton transmission equation is obtained by combining the factors of the fifth-order nonlinear,high-order dispersion and loss.The effect of high-order dispersion and nonlinearity on ... |
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| Keywords: | high-order dispersion split-step Fourier transform method optical soliton |
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