| Issue |
EPL
Volume 117, Number 1, January 2017
|
|
|---|---|---|
| Article Number | 14003 | |
| Number of page(s) | 7 | |
| Section | Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics | |
| DOI | https://doi.org/10.1209/0295-5075/117/14003 | |
| Published online | 02 March 2017 | |
Bipolar-rogue-wave structures
Department of Physics, Beijing University of Chemical Technology - Beijing, 100029, China
(a) dingyc@mail.buct.edu.cn
(b) cylin@mail.buct.edu.cn
Received: 7 November 2016
Accepted: 15 February 2017
The formation of extreme localization structures in nonlinear dispersive media (water or optical fibres) can be explained and described by the focusing nonlinear Schrödinger equation (NLSE). The NLSE is especially important in understanding how solitons on a condensate background (SCB) appear from a small perturbation through modulation instability. We have studied theoretically SCB solutions solved with the dressing method. A class of bipolar-rogue-wave structures that are constructed by collisions between elementary SCB or bipolar solitonic solutions was found. Besides, we have also found a new class of regular bright solitonic rogue waves that are originated from the collision between two bipolar-rogue-wave structures. The bipolar-rogue-wave structures can be considered to provide a new prototype for rogue-waves dynamics modeling. Our results extend previous studies in the area of rogue waves and may be important in the study of oceanography and optics.
PACS: 42.65.Tg – Optical solitons; nonlinear guided waves / 42.65.Sf – Dynamics of nonlinear optical systems; optical instabilities, optical chaos and complexity, and optical spatio-temporal dynamics
© EPLA, 2017
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