Directional coupling of optical signals by odd dark beams with mixed phase dislocations

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Numerical simulations on the evolution of step-screw and edge-screw optical phase dislocations in bulk saturable self-defocusing nonlinear media are presented, with emphasis on their ability to induce steering waveguides for signal beams (pulses). Two schemes for directional coupling of such signals, both ensuring reasonable coupling-to-cross-talk efficiency ratio, are investigated. The parameters useful for performance optimization of the couplers are discussed.
6 pages, 5 figures, 2 tables, submitted to Appl. Phys. B

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Pattern Formation and Solitons

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http://salesiana.dossiersoluciones.com/handle/123456789/79842

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/nlin/0007026
 http://arxiv.org/abs/nlin/0007026

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arXiv