We study one-dimensional steady-state photorefractive screening solitons in a bulk strontium barium niobate crystal. We compare measurements and calculations of the soliton properties and find good agreement for relations between the profile, width and intensity of the soliton, the applied voltage and material parameters. We find the solitons stable against perturbations both in the plane and perpendicular to the plane of the soliton for intensities large compared to the background intensity.
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