×

Interactions of bright solitons for the \((2+1)\)-dimensional coupled nonlinear Schrödinger equations from optical fibres with symbolic computation. (English) Zbl 1110.35341

Summary: In nonlinear optical fibres, the evolution of two polarization envelopes is governed by a system of coupled nonlinear Schrödinger (CNLS) equations. In this paper, with the aid of symbolic computation, the analytical bright one- and two-soliton solutions of the \((2+1)\)-dimensional CNLS equations under certain constraints are presented by employing the Hirota method. We discuss the head-on and overtaking interactions which include elastic and inelastic collisions between two parallel bright solitons. In the interaction process, the intensities of solitons can exhibit various redistributions. We also point out that these properties have important physical applications in constructing various logic gates and nonlinear optical fibers.

MSC:

35Q55 NLS equations (nonlinear Schrödinger equations)
78A60 Lasers, masers, optical bistability, nonlinear optics
35Q51 Soliton equations
35-04 Software, source code, etc. for problems pertaining to partial differential equations

Software:

diffgrob2; Rif
PDFBibTeX XMLCite
Full Text: DOI