title: Temporal and spectral self-shifts of dark optical solitons.
abstract: We report the discovery of temporal and spectral self-shifts of dark optical solitons propagating in single-mode fibers. These shifts become increasingly pronounced as the intensity and the fiber length are increased. We show that our data are in quantitative agreement with numerical solutions to a modified nonlinear Schrödinger equation that includes the Raman contribution to the nonlinear refractive index.
authors.forename: A M
authors.initials: AM
authors.lastname: Weiner
authors.forename: R N
authors.initials: RN
authors.lastname: Thurston
authors.forename: W J
authors.initials: WJ
authors.lastname: Tomlinson
authors.forename: J P
authors.initials: JP
authors.lastname: Heritage
authors.forename: D E
authors.initials: DE
authors.lastname: Leaird
authors.forename: E M
authors.initials: EM
authors.lastname: Kirschner
authors.forename: R J
authors.initials: RJ
authors.lastname: Hawkins