Temperature of dark soliton effects on the self-deflection of bright soliton in a separate bright-dark soliton pair
Temperature effects of dark solitons on the self-deflection of bright solitons in a separate bright-dark soliton pair

Based on the theory of one-dimensional separate soliton pairs formed in a serial photorefractive crystal circuit, we investigated the temperature effects of the dark soliton on the self-deflection of the bright soliton in a bright-dark soliton pair. The numerical results obtained by solving the nonlinear propaga- tion equation showed that the bright soliton moves on a parabolic trajectory in the crystal and its spa- tial shift changed with the temperature of the dark soliton. The higher the temperature of the dark soli- ton was, the smaller the spatial shift of the bright soliton was. The self-bending process was further studied by the perturbation technique, and the results were found to be in good agreement with that obtained by the numerical method.