title: Swing effect of spatial solitons propagating through Gaussian and triangular waveguides.
abstract: We report the behavior of spatial optical solitons propagating through inhomogeneous waveguides with Gaussian, single triangular, and double-triangular refractive index profiles. In a given Gaussian profile, as the soliton amplitude decreases below a certain value, its behavior deviates from that of a particlelike soliton. Dependence of the swing period of a spatial soliton in a single triangular index profile on its amplitude, eta, is less significant than that in a Gaussian profile. We also report the interacting behavior of two solitons propagating simultaneously through a waveguide with a double-triangular index profile. Furthermore, we present the effects of the solitons' initial phase factors and amplitude on their behavior.
authors.affiliation: Department of Electrical Engineering, Tarbiat Modares University (TMU), P.O. Box 14115-143, Tehran 14117, Iran.
authors.forename: Majid
authors.initials: M
authors.lastname: Ebnali-Heidari
authors.forename: Mohammad K
authors.initials: MK
authors.lastname: Moravvej-Farshi
authors.forename: Abbas
authors.initials: A
authors.lastname: Zarifkar