https://doi.org/10.1140/epjb/e2002-00295-5
Effect of phase shift in shape changing collision of solitons in coupled nonlinear Schrödinger equations
Centre for Nonlinear Dynamics, Department of Physics,
Bharathidasan University, Tiruchirapalli-620 024, India
Corresponding author: a lakshman@bdu.ernet.in
Received:
1
October
2001
Revised:
4
February
2002
Published online:
2
October
2002
Soliton interactions in systems modelled by coupled nonlinear Schrödinger (CNLS) equations and encountered in phenomena such as wave propagation in optical fibers and photorefractive media possess unusual features: shape changing intensity redistributions, amplitude dependent phase shifts and relative separation distances. We demonstrate these properties in the case of integrable 2-CNLS equations. As a simple example, we consider the stationary two-soliton solution which is equivalent to the so-called partially coherent soliton (PCS) solution discussed much in the recent literature.
PACS: 42.65.Tg. – Optical solitons / 02.30.Ik. – Integrable systems
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2002
