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 …

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

We present a model of soliton propagation in waveguides with quadratic nonlinearity.
Criteria for solitons to exist in such waveguides are developed and two example …

We study experimentally and numerically the spatiotemporal evolution of short pulses in
quadratic nonlinear waveguide arrays with coupled second-harmonic modes, revealing …

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 suggest an effective method for controlling nonlinear switching in one-dimensional
waveguide arrays formed by the periodically poled lithium niobate. We demonstrate that the …

In this paper, we investigate the interplay between the second-and the third-order
nonlinearities in lithium-niobate waveguides with strong waveguide dispersion using …

The advantage for quadratic soliton generation of engineering the quasi-phase-matching
period near the input of lithium niobate slab waveguides is demonstrated. This approach …