J4 ›› 2012, Vol. 29 ›› Issue (6): 747-753.

• 非线性光学 • 上一篇    下一篇

放大器噪声对色散管理光孤子传输的影响

卢洵,王东升   

  1. 信息工程大学理学院,河南 郑州 450001
  • 收稿日期:2011-10-12 修回日期:2012-11-02 出版日期:2012-11-28 发布日期:2014-03-20
  • 通讯作者: 卢 洵 (1966-),河南省濮阳人,副教授,主要研究光信息处理、光通信技术、数字图像处理等。 E-mail:ludapost@tom.com

Influence of amplifier noise on optical soliton in dispersion-managed system

LU Xun,WANG Dongsheng   

  1. Institute of Science, Information Engineering University, Zhengzhou 450001, China
  • Received:2011-10-12 Revised:2012-11-02 Published:2012-11-28 Online:2014-03-20

摘要:

采用变分法讨论了放大器噪声对色散管理光孤子脉冲参数的影响。讨论了ASE噪声对脉冲相位、脉冲中心时间和中心频率的影响,并且对比讨论了采用密集色散管理系统和降低平均色散值后,ASE噪声对脉冲的影响,结果表明:密集色散管理孤子系统和平均色散接近于零的色散管理系统更有利于降低放大器噪声对脉冲的扰动。

关键词: 非线性光学, 色散管理孤子, 放大器自发辐射噪声, 数值模拟

Abstract:

Using the variational method, the influence of the amplifier spontaneous emission (ASE) noise upon the optical pulse in dispersion management system is discussed, thus, the pulse phase variance, the central time variance and center frequency variation with distance is gained, and the influence of the amplifier spontaneous emission (ASE) noise is discussed in the densely dispersion managed soliton system and the larger negative average dispersion, the numerical simulation results show: the densely dispersion managed soliton system and the larger negative average dispersion can reduce the pulse impact of ASE noise.

Key words: nonlinear optics, dispersion-managed soliton, amplifier spontaneous emission noise, numerical simulation

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