We report the observation of collisions between mutually incoherent, o
ne-dimensional, bright, steady-state photorefractive screening soliton
s. Using the theory of planar dielectric waveguides together with the
theory of photorefractive screening solitons, we explain how the colli
sions depend on the peak intensity of the solitons and the externally
applied biased held. Finally, we compare the experimental results with
direct numerical simulations. (C) 1996 American Institute of Physics.