中国物理B ›› 2007, Vol. 16 ›› Issue (10): 3004-3008.doi: 10.1088/1009-1963/16/10/031

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

Oscillation of spatial solitons in a waveguide with a symmetrical refractive index profile

董亮伟, 金洪震, 王 辉   

  1. Institute of Information Optics of Zhejiang Normal University, Jinhua 321004, China
  • 收稿日期:2007-02-21 修回日期:2007-03-28 出版日期:2007-10-08 发布日期:2007-10-08
  • 基金资助:
    Project supported by the Natural Science Foundation of Zhejiang Province, China (Grant No Y105061) and the Department of Education of Zhejiang Province (Grant No 20060493).

Oscillation of spatial solitons in a waveguide with a symmetrical refractive index profile

Dong Liang-Wei(董亮伟)†, Jin Hong-Zhen(金洪震), and Wang Hui(王辉)   

  1. Institute of Information Optics of Zhejiang Normal University, Jinhua 321004, China
  • Received:2007-02-21 Revised:2007-03-28 Online:2007-10-08 Published:2007-10-08
  • Supported by:
    Project supported by the Natural Science Foundation of Zhejiang Province, China (Grant No Y105061) and the Department of Education of Zhejiang Province (Grant No 20060493).

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摘要： Dynamics of (1+1)D spatial solitons in a Kerr medium with a transversely symmetrical refractive index profile is investigated. Propagation of solitons is analysed theoretically by using an effective-particle approach. Analytical results show that the soliton oscillates periodically with a variable acceleration. The expression of oscillatory period is derived by introducing a concept of `average acceleration'. Both acceleration and oscillatory period are determined by the parameters of the input soliton and the waveguide. Propagations of solitons are simulated numerically and good agreement is obtained between the theoretical and numerical results.

Abstract: Dynamics of (1+1)D spatial solitons in a Kerr medium with a transversely symmetrical refractive index profile is investigated. Propagation of solitons is analysed theoretically by using an effective-particle approach. Analytical results show that the soliton oscillates periodically with a variable acceleration. The expression of oscillatory period is derived by introducing a concept of `average acceleration'. Both acceleration and oscillatory period are determined by the parameters of the input soliton and the waveguide. Propagations of solitons are simulated numerically and good agreement is obtained between the theoretical and numerical results.

Key words: effective-particle approach, effective `acceleration', oscillatory period

中图分类号:  (Optical solitons; nonlinear guided waves)

  • 42.65.Tg
42.65.Hw (Phase conjugation; photorefractive and Kerr effects) 42.65.Wi (Nonlinear waveguides)