J4 ›› 2010, Vol. 27 ›› Issue (3): 340-345.

• 非线性光学 • 上一篇    下一篇

光纤中随时间变化的三阶非线性对类明孤子传输特性的影响

肖珊1 桑志文2 常山2   

  1. 1江西医学院上饶分院, 江西 上饶 334001
     2上饶师范学院物理与电子信息系 江西 上饶 334001
  • 收稿日期:2009-08-07 修回日期:2009-10-25 出版日期:2010-05-28 发布日期:2010-05-11
  • 通讯作者: 肖珊(1963--),女,安徽无为人,副教授,主要从事物理教学及相关方面研究。 E-mail:srxshan@163.com
  • 基金资助:

    江西省自然科学基金(2008GZS0045)

Influence of the third-order nonlinear on the propagation properties of the soliton-like pulse in the optical fibers

XIAO Shan1, SANG Zhi-wen2, CHANG Shan2   

  1. 1.Shangrao Branch of Jiangxi Medical College, Shangrao Jiangxi 334001,China; 
    2.Physics & electronic Information department of Shangrao Normal college, Shangrao Jiangxi 334001,China
  • Received:2009-08-07 Revised:2009-10-25 Published:2010-05-28 Online:2010-05-11

摘要:

从MNLS方程出发,考虑三阶非线性微扰的作用,采用变分法,求得拉格朗日密度函数表达式。在此基础上,推出了类明孤子脉冲参数随传输距离的演化方程组,讨论了三阶非线性微扰对类明孤子传输特性的影响。

关键词: MNLS方程∣变分法∣三阶非线性∣类明孤子

Abstract:

The MNLS equation and variational method are used to derive the densely equation of Lagrange and evolution equations for the parameters of the soliton-like pulse and their analytic solutions. The influence of the third-order nonlinear on the propagation properties of the soliton-like pulses in optical fibers is discussed .

Key words: nonlinear optics∣MNLS equation∣calculus of variations∣third-order nonlinear∣bright soliton-like