Temperature effects on soliton pairs in novel photorefractive crystals having both the linear and quadratic electro-optic effects

Abstract We investigate and formulate a detailed theory studying the temperature effects on bright-dark optical spatial soliton pair in novel photorefractive crystals having both nonlinearities i.e., quadratic linear electro-optic effects. The coupled modified Nonlinear Schrodinger (NLS) equations is solved exactly to obtain analytical solutions for components. There are few physical factors which dependent temperature: dielectric constant, dark irradiance diffusion current. consider variation of constant study effect nonlinearity. Various FWHM curves plotted give us an idea self trapping nonlinearity’s dependence