First Observation Of Higher Order Planar Soliton Beams

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Abstract
Transmission of quasi-monochromatic powerful laser beams through materials exhibiting intensity dependence of their refractive index (optical Kerr nonlinearity) frequently results in chaotic breakdown of the propagated beams. This corresponds to recognized instabilities of the solutions of the three-dimensional propagation equation (cubic nonlinear Schreidinger equation). Two-dimensional stable "soliton" solutions were found theoretically by Zakharov and Shabat in 1972 [1]. These solutions describe ,for the fundamental order stable self-trapping of single mode, two-dimensional monochromatic beams through homogeneous nonlinear slab. Higher orders solutions consist in periodical narrowings and spreadings of the guided beam. We experimentally demonstrated the existence of the "first order (fundamental) soliton beam" in 1985 [2].© (1987) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.

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