Geodesic
Numerical computation of solitons for optical systems
ESAIM: Mathematical Modelling and Numerical Analysis , Tome 43 (2009) no. 1, pp. 173-208.

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In this paper, we present numerical methods for the determination of solitons, that consist in spatially localized stationary states of nonlinear scalar equations or coupled systems arising in nonlinear optics. We first use the well-known shooting method in order to find excited states (characterized by the number k of nodes) for the classical nonlinear Schrödinger equation. Asymptotics can then be derived in the limits of either large k are large nonlinear exponents σ. In a second part, we compute solitons for a nonlinear system governing the propagation of two coupled waves in a quadratic media in any spatial dimension, starting from one-dimensional states obtained with a shooting method and considering the dimension as a continuation parameter. Finally, we investigate the case of three wave mixing, for which the shooting method is not relevant.

DOI : 10.1051/m2an:2008044
Classification : 35J25, 35J60, 65N06, 65N99, 78M20
Mots-clés : nonlinear optics, elliptic problems, stationary states, shooting method, continuation method 
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Menza, Laurent Di. Numerical computation of solitons for optical systems. ESAIM: Mathematical Modelling and Numerical Analysis , Tome 43 (2009) no. 1, pp. 173-208. doi : 10.1051/m2an:2008044. https://geodesic-test.mathdoc.fr/articles/10.1051/m2an:2008044/

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