Graduate School in Nonlinear Science

Sponsored by the Danish Research Academy

MIDIT                               OFD                           CATS
Modelling, Nonlinear Dynamics       Optics and Fluid Dynamics     Chaos and Turbulence Studies
and Irreversible Thermodynamics     Risø National Laboratory      Niels Bohr Institute and 
Technical University of Denmark     Building 128                  Department of Chemistry
Building 321                        P.O. Box 49                   University of Copenhagen 
DK-2800 Lyngby                      DK-4000 Roskilde              DK-2100 Copenhagen Ø
Denmark                             Denmark                       Denmark


by Elena Ostrovskaya
Optical Sciences Centre
The Australian National University
Canberra, Australia

MIDIT-seminar 446

Thursday April 22, 1999, 14.00 h
at MIDIT, IMM Building 305, room 027

Abstract: Multi-hump optical solitons are complex dynamic objects created by two or more interacting light beams. By means of linear stability analysis and numerical simulations, we investigate the stability of two- and three-hump solitary waves governed by incoherent beam interaction in a saturable medium. We demonstrate that, in contrast with what was previously believed, multi-hump solitary waves can be stable in a wide domain of their existence. Our study provides a theoretical background for the recently reported experimental results.