title: Dark solitary waves in the nonlinear Schrödinger equation with third order dispersion, self-steepening, and self-frequency shift.
abstract: We solve the higher order nonlinear Schrödinger equation describing the propagation of ultrashort pulses in optical fibers. By means of the coupled amplitude-phase formulation fundamental (solitary wave) dark soliton solutions are found.
authors.affiliation: Departamento de Física, Facultad de Ciencias, Universidad de Oviedo, C/Calvo Sotelo s/n, Oviedo E-33007, Spain. sergio@pinon.ccu.uniovi.es
authors.forename: S L
authors.initials: SL
authors.lastname: Palacios
authors.forename: A
authors.initials: A
authors.lastname: Guinea
authors.forename: J M
authors.initials: JM
authors.lastname: Fernández-Díaz
authors.forename: R D
authors.initials: RD
authors.lastname: Crespo