中国物理B ›› 2016, Vol. 25 ›› Issue (1): 10507-010507.doi: 10.1088/1674-1056/25/1/010507

• GENERAL • 上一篇    下一篇

Kuznetsov-Ma soliton and Akhmediev breather of higher-order nonlinear Schrödinger equation

Zai-Dong Li(李再东), Xuan Wu(吴璇), Qiu-Yan Li(李秋艳), P B He(贺鹏斌)   

  1. 1. Department of Applied Physics, Hebei University of Technology, Tianjin 300401, China;
    2. College of Physics and Microelectronics Science, Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, Hunan University, Changsha 410082, China
  • 收稿日期:2015-05-29 修回日期:2015-09-07 出版日期:2016-01-05 发布日期:2016-01-05
  • 通讯作者: Zai-Dong Li E-mail:lizd2018@live.com
  • 基金资助:

    Project supported by the Key Project of Scientific and Technological Research in Hebei Province, China (Grant No. ZD2015133).

Kuznetsov-Ma soliton and Akhmediev breather of higher-order nonlinear Schrödinger equation

Zai-Dong Li(李再东)1, Xuan Wu(吴璇)1, Qiu-Yan Li(李秋艳)1, P B He(贺鹏斌)2   

  1. 1. Department of Applied Physics, Hebei University of Technology, Tianjin 300401, China;
    2. College of Physics and Microelectronics Science, Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, Hunan University, Changsha 410082, China
  • Received:2015-05-29 Revised:2015-09-07 Online:2016-01-05 Published:2016-01-05
  • Contact: Zai-Dong Li E-mail:lizd2018@live.com
  • Supported by:

    Project supported by the Key Project of Scientific and Technological Research in Hebei Province, China (Grant No. ZD2015133).

摘要:

In terms of Darboux transformation, we have exactly solved the higher-order nonlinear Schrödinger equation that describes the propagation of ultrashort optical pulses in optical fibers. We discuss the modulation instability (MI) process in detail and find that the higher-order term has no effect on the MI condition. Under different conditions, we obtain Kuznetsov-Ma soliton and Akhmediev breather solutions of higher-order nonlinear Schrödinger equation. The former describes the propagation of a bright pulse on a continuous wave background in the presence of higher-order effects and the soliton's peak position is shifted owing to the presence of a nonvanishing background, while the latter implies the modulation instability process that can be used in practice to produce a train of ultrashort optical soliton pulses.

关键词: Kuznetsov-Ma soliton, Akhmediev breather

Abstract:

In terms of Darboux transformation, we have exactly solved the higher-order nonlinear Schrödinger equation that describes the propagation of ultrashort optical pulses in optical fibers. We discuss the modulation instability (MI) process in detail and find that the higher-order term has no effect on the MI condition. Under different conditions, we obtain Kuznetsov-Ma soliton and Akhmediev breather solutions of higher-order nonlinear Schrödinger equation. The former describes the propagation of a bright pulse on a continuous wave background in the presence of higher-order effects and the soliton's peak position is shifted owing to the presence of a nonvanishing background, while the latter implies the modulation instability process that can be used in practice to produce a train of ultrashort optical soliton pulses.

Key words: Kuznetsov-Ma soliton, Akhmediev breather

中图分类号:  (Solitons)

  • 05.45.Yv
42.65.Tg (Optical solitons; nonlinear guided waves)