title: Nonlinear pulse propagation in optical fibers.
abstract: We discuss the propagation of nonlinear optical pulses in fibers. The wave equation is solved taking the radial dependence in an average way. The radius versus wavelength curves for "no dispersion" in SiO(2) glass are calculated and plotted. These no-dispersion curves separate the regions of light and dark solitons supported by the fibers.
authors.forename: M
authors.initials: M
authors.lastname: Jain
authors.forename: N
authors.initials: N
authors.lastname: Tzoar