中国物理B ›› 2009, Vol. 18 ›› Issue (6): 2364-2371.doi: 10.1088/1674-1056/18/6/041

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Similarity of interactions between (3+1)D spatiotemporal optical solitons in both the dispersive medium with cubic-quintic nonlinearity and the saturable medium

杨红1, 彭金璋2, 唐翌3   

  1. (1)College of Physics Science and Information Engineering, Jishou University, Jishou 416000, China; (2)College of Physics Science and Information Engineering, Jishou University, Jishou 416000, China;Department of Physics, Xiangtan University, Xiangtan 411105, China; (3)Department of Physics, Xiangtan University, Xiangtan 411105, China
  • 收稿日期:2008-09-26 修回日期:2008-11-20 出版日期:2009-06-20 发布日期:2009-06-20
  • 基金资助:
    Project supported by the Key Project of the Educational Department of Hunan Province of China (Grant No 04A058), the Natural Science Foundation of Hunan Province of China (Grant No 05JJ30078) and the Research Project of Jishou University (Grant No 08JDZC002).

The Similarity of interactions between (3+1)D spatiotemporal optical solitons in both the dispersive medium with cubic-quintic nonlinearity and the saturable medium

Peng Jin-Zhang(彭金璋)a)b), Yang Hong(杨红)a), and Tang Yi(唐翌)b)   

  1. a College of Physics Science and Information Engineering, Jishou University, Jishou 416000, China; b Department of Physics, Xiangtan University, Xiangtan 411105, China
  • Received:2008-09-26 Revised:2008-11-20 Online:2009-06-20 Published:2009-06-20
  • Supported by:
    Project supported by the Key Project of the Educational Department of Hunan Province of China (Grant No 04A058), the Natural Science Foundation of Hunan Province of China (Grant No 05JJ30078) and the Research Project of Jishou University (Grant No 08JDZC002).

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摘要： By making use of the split-step Fourier method, this paper numerically simulates dynamical behaviors, including repulsion, fusion, scattering and spiraling of colliding (3+1)D spatiotemporal solitons in both the dispersive medium with cubic-quintic and the saturable medium. Careful comparison of the colliding behaviors in these two media is presented. Although the origin of the nonlinearities is different in these two media, the obtained results show that the dynamical behaviors are very similar. This presents additional evidence to support the supposition of universality of interactions between solitons.

关键词: spatiotemporal solitons, cubic-quintic nonlinearity, interactions

Abstract: By making use of the split-step Fourier method, this paper numerically simulates dynamical behaviors, including repulsion, fusion, scattering and spiraling of colliding (3+1)D spatiotemporal solitons in both the dispersive medium with cubic-quintic and the saturable medium. Careful comparison of the colliding behaviors in these two media is presented. Although the origin of the nonlinearities is different in these two media, the obtained results show that the dynamical behaviors are very similar. This presents additional evidence to support the supposition of universality of interactions between solitons.

Key words: spatiotemporal solitons, cubic-quintic nonlinearity, interactions

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

  • 42.65.Tg
42.65.Hw (Phase conjugation; photorefractive and Kerr effects) 42.65.Sf (Dynamics of nonlinear optical systems; optical instabilities, optical chaos and complexity, and optical spatio-temporal dynamics)