Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1542442 | Optics Communications | 2006 | 8 Pages |
Abstract
Spatial structures as a result of a modulational instability are obtained in the integrable discrete nonlinear Schrödinger equation (Ablowitz-Ladik equation). Discrete slow space variables are used in a general setting and the related finite differences are constructed. Analyzing the ensuing equation, we derive the modulational instability criterion from the discrete multiple scales approach. Numerical simulations in agreement with analytical studies lead to the disintegrations of the initial modulated waves into a train of pulses.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Alidou Mohamadou, Ferdinand Fopa, Timoléon Crépin Kofané,