We study experimentally and theoretically the temporal dynamics of laser pulses
propagating under conditions of spatial self-focusing in quadratic nonlinear waveguide …

We present theoretical and experimental studies on nonlinear beam propagation in lithium
niobate waveguide arrays utilizing higher-order second harmonic bands. We find that the …

We observe highly localized solitons in periodically poled lithium niobate waveguide arrays
close to phase matching for second-harmonic generation. With fundamental and second …

We report on the formation of dark discrete solitons in a nonlinear periodic system consisting
of evanescently coupled channel waveguides in defocusing lithium niobate. Localized …

Discrete optical systems can be realized as arrays of parallel, weakly coupled, channel
waveguides where light normally undergoes “discrete diffraction” via the weak coupling …

We observed spatial addressing of light by bi-directional spatial emission of beams at a
quadratically nonlinear interface in periodically poled lithium niobate waveguides. The …

We experimentally demonstrate the ability of a self-guided laser beam to induce waveguides
with sharp bends. The beam is a two-dimensional photorefractive screening-photovoltaic …

We observed tunable bi-directional emission of spatial solitons at a quadratically nonlinear
interface in periodically poled lithium niobate planar waveguides. The interface consists of …

NLTuAl-1 Discrete Solitons in Quadratic Nonlinear Waveguide Arrays Page 1 NLTuAl-1 Discrete
Solitons in Quadratic Nonlinear Waveguide Arrays Thomas Pertsch, Ulf Peschel, and Falk …

We report the experimental demonstration of spatial nonlinear beam displacement caused
by an interface between periodically modulated and uniform quadratic nonlinearity. We …