Abstract

Perturbative topological solitary-wave solutions of a generalized nonlinear Schrödinger equation, describing optical propagation in the femtosecond time scale, are obtained. It is found that these solutions have the form of kink and antikink solitons, propagating on top of a continuous wave in the normal- and the anomalous-dispersion regime, respectively. The profile of the solutions is investigated in detail, and it is found that it depends on the relative importance of the nonlinearity and the dispersion on wave propagation.

© 1997 Optical Society of America

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