title: Dark soliton in a Kerr defocusing medium.
abstract: The soliton solution in a Kerr defocusing medium is obtained. This solution is essentially a dip in a uniform plane wave and is thus called a dark soliton. This solution is then used to supply a qualitative explanation of the optical branching effect, which has been observed recently in a photorefractive slab waveguide.
authors.forename: P A
authors.initials: PA
authors.lastname: Belanger
authors.forename: P
authors.initials: P
authors.lastname: Mathieu