title: Soliton steering by longitudinal modulation of the nonlinearity in waveguide arrays.
abstract: We show how discrete solitary waves in one and two-dimensional waveguide arrays can be steered across the lattice via the introduction of a longitudinal periodic modulation of the nonlinear response. Through parametric energy transfer from the modulation to the solitary wave, the latter can increase its width and overcome the Peierls-Nabarro potential to propagate freely.
authors.affiliation: NooEL-Nonlinear Optics and OptoElectronics Lab, Department of Electronic Engineering, University of Rome Roma Tre, Via della Vasca Navale 84, 00146 Rome, Italy.
authors.forename: Gaetano
authors.initials: G
authors.lastname: Assanto
authors.forename: Luis A
authors.initials: LA
authors.lastname: Cisneros
authors.forename: Antonmaria A
authors.initials: AA
authors.lastname: Minzoni
authors.forename: Benjamin D
authors.initials: BD
authors.lastname: Skuse
authors.forename: Noel F
authors.initials: NF
authors.lastname: Smyth
authors.forename: Annette L
authors.initials: AL
authors.lastname: Worthy