We report on a novel instability arising from the propagation of coupled dark solitary beams governed by coupled defocusing nonlinear Schrdinger equations. Considering dark notches on backgrounds with different wavelengths, hence different diffraction coefficients, we find that the vector dark soliton solution is unstable to radiation modes. Using perturbation theory and numerical integration, we demonstrate that the component undergoing stronger diffraction radiates away, leaving a single dark soliton in the other mode/wavelength.

Assanto, G., J. M. L., M., N. F., S. (2015). Diffraction induced instability of coupled dark solitary waves. OPTICS LETTERS, 40, 1771-1774 [10.1364/OL.40.001771].

Diffraction induced instability of coupled dark solitary waves

ASSANTO, GAETANO;
2015-01-01

Abstract

We report on a novel instability arising from the propagation of coupled dark solitary beams governed by coupled defocusing nonlinear Schrdinger equations. Considering dark notches on backgrounds with different wavelengths, hence different diffraction coefficients, we find that the vector dark soliton solution is unstable to radiation modes. Using perturbation theory and numerical integration, we demonstrate that the component undergoing stronger diffraction radiates away, leaving a single dark soliton in the other mode/wavelength.
2015
Assanto, G., J. M. L., M., N. F., S. (2015). Diffraction induced instability of coupled dark solitary waves. OPTICS LETTERS, 40, 1771-1774 [10.1364/OL.40.001771].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/138090
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