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Phys Rev E Stat Nonlin Soft Matter Phys. 2007 Oct;76(4 Pt 2):046609. Epub 2007 Oct 22.

Dark soliton dynamics and interactions in continuous-wave-induced lattices.

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School of Electrical and Computer Engineering, National Technical University of Athens, Zographou 15773, Greece.


The dynamics of dark spatial soliton beams and their interaction under the presence of a continuous wave (CW), which dynamically induces a photonic lattice, are investigated. It is shown that appropriate selection of the characteristic parameters of the CW result in controllable steering of a single soliton as well as controllable interaction between two solitons. Depending on the CW parameters, the soliton angle of propagation can be changed drastically, while two-soliton interaction can be either enhanced or reduced, suggesting a reconfigurable soliton control mechanism. Our analytical approach, based on the variational perturbation method, provides a dynamical system for the dark soliton evolution parameters. Analytical results are shown in good agreement with direct numerical simulations.

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