Coupled-mode theory for spatial gap solitons in optically induced lattices
We derive two systems of coupled-mode equations for spatial gap solitons in one-dimensional (1D) and quasi-one-dimensional (Q1D) photonic lattices induced by two interfering optical beams in a nonlinear photorefractive crystal. The models differ from the ordinary coupled-mode system (e.g., for the fiber Bragg grating) by saturable nonlinearity and, if expanded to cubic terms, by the presence of four-wave-mixing terms. In the 1D system, solutions for stationary gap solitons are obtained in an...[Show more]
|Collections||ANU Research Publications|
|Source:||Physical Review E-Statistical, Nonlinear and Soft Matter Physics|
|Malomed_Coupled2005.pdf||1.06 MB||Adobe PDF|
Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.