Stabilization of Spatial Solitons by Gain Diffusion

Details Stabilization of Spatial Solitons by Gain Diffusion Stabilization of Spatial Solitons by Gain Diffusion

2000-01-28

arxiv.org/abs/nlin/0001064v1

Nonlinear Sciences

Pattern Formation and Solitons

10 pages, 4 figures, submitted to Phys.Rev.A

Scientific paper

10.1103/PhysRevA.61.053813

It is shown, that diffusion of saturated gain (e.g. diffusion of population inversion in lasers) causes, and/or enhances a modulational instability of generated light field. In case of a subcritical system (e.g. a laser with saturable absorber) the enhancement of the modulational instability stabilizes spatial solitons. These predictions are made for general nonlinear optical systems, and are illustrated by numerical simulation of lasers with saturable absorber.

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