High-intensity one-dimensional and two-dimensional nanosecond photorefractive spatial solitons

Summary form only given. We report a comparison between theory and experiment for high-intensity steady-state screening solitons. Although the low-intensity feature of photorefractive spatial solitons is attractive for applications, high intensity photorefractive solitons are also interesting, because the speed with which the steady-state screening soliton forms is intensity dependent and can occur at nanosecond speeds or faster for GW/cm/sup 2/ intensities. For these intensities, however, the excited free carrier densities are high and produce index variations that can no longer be neglected in the theoretical model.