title: Steady-state photorefractive soliton-induced Y-junction waveguides and high-order dark spatial solitons.
abstract: We report the experimental observation o steady-state photorefractive Y junctions and sequences of high-order dark photorefractive screening solitons in a biased bulk strontium barium niobate crystal. The parameters that characterize the properties of the high-order dark screening solitons are measured and compared with the theoretical prediction for the fundamental dark screening soliton. The high-order dark solitons induce stable waveguides in one transverse dimension that can guide other, possibly very intense, beams of different wavelengths.
authors.forename: Z
authors.initials: Z
authors.lastname: Chen
authors.forename: M
authors.initials: M
authors.lastname: Mitchell
authors.forename: M
authors.initials: M
authors.lastname: Segev