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Propagation characteristics of bright solitons are studied in a photorefractive waveguide having both the linear and quadratic electro-optic effect under the paraxial and Wentzel–Kramers–Brillouin–Jeffreys approximation. The planar waveguide structure enhances the self-focusing while reducing the minimum or threshold power required for self trapping. The waveguide structure embedded in the crystal...
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