| 波分复用孤子系统中孤子碰撞特性研究 |
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| 引用本文： | 汪仲清,刘兴,罗习.波分复用孤子系统中孤子碰撞特性研究[J].半导体光电,2009,30(5):734-737. |
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| 作者姓名： | 汪仲清 刘兴 罗习 |
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| 作者单位： | 数理学院;光电工程学院,重庆,400065 |
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| 摘 要： | 从耦合非线性薛定谔方程组出发,利用对称分步傅里叶方法,对波分复用孤子系统中两个不同波长孤子间的相互碰撞特性进行了数值研究.结果表明,碰撞会导致孤子脉冲的瞬间速度发生变化,孤子中心频率还将发生偏移,而且频率偏移量的大小与孤子的相对速度有关.Abstract：Based on coupled nonlinear Schrodinger equations,an investigation of the collision between two solitons with different wavelengthes in soliton wavelength division multiplexed (WDM) system is carried out by making use of symmetrical slit-step Fourier numerical method.It shows that the collision will cause an immediate change in the instantaneous speed of soliton pulse,as well as a shift in the central frequency,and the quantity of this shift is relevant to the speed difference between the two solitons.
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| 关 键 词： | 光孤子 耦合非线性薛定谔方程 波分复用 分步傅里叶法 碰撞特性 |
Investigation of Collision Properties of Solitons with Different Wavelengthes in Soliton WDM System |
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| WANG Zhong-qing,LIU Xing,LUO Xi.Investigation of Collision Properties of Solitons with Different Wavelengthes in Soliton WDM System[J].Semiconductor Optoelectronics,2009,30(5):734-737. |
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| Authors: | WANG Zhong-qing LIU Xing LUO Xi |
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| Abstract: | Based on coupled nonlinear Schrodinger equations,an investigation of the collision between two solitons with different wavelengthes in soliton wavelength division multiplexed (WDM) system is carried out by making use of symmetrical slit-step Fourier numerical method.It shows that the collision will cause an immediate change in the instantaneous speed of soliton pulse,as well as a shift in the central frequency,and the quantity of this shift is relevant to the speed difference between the two solitons. |
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| Keywords: | optical soliton coupled nonlinear Schrodinger equation wavelength division multiplexing slit-step Fourier method collision property |
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