Light bullets in coupled nonlinear Schrödinger equations with variable coefficients and a trapping potential.
Opt Express
; 25(8): 9094-9104, 2017 Apr 17.
Article
em En
| MEDLINE
| ID: mdl-28437984
We analyze three-dimensional (3D) vector solitary waves in a system of coupled nonlinear Schrödinger equations with spatially modulated diffraction and nonlinearity, under action of a composite self-consistent trapping potential. Exact vector solitary waves, or light bullets (LBs), are found using the self-similarity method. The stability of vortex 3D LB pairs is examined by direct numerical simulations; the results show that only low-order vortex soliton pairs with the mode parameter values n ≤ 1, l ≤ 1 and m = 0 can be supported by the spatially modulated interaction in the composite trap. Higher-order LBs are found unstable over prolonged distances.
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01-internacional
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MEDLINE
Idioma:
En
Ano de publicação:
2017
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Article