G. F. Nalesso

TL;DR: In this paper, an analytical expression for the conversion efficiency of second-harmonic generation (SHG) in a photonic crystal is derived, and the results obtained for the undepleted-pump limit allow us to describe the role played by the feedback and dispersion introduced by the photonic crystals and hence to optimize the SHG process.

TL;DR: Taking advantage of the almost two dimensional nature of graphene, the nonlinear effect as a parameter in the continuity equations is introduced and applied to a simple slab waveguide to enlighten how graphene can be used to induce huge nonlinear phase shifts at easily accessible power levels.

TL;DR: Examples of the synthesis of Gaussian and super-Gaussian picosecond pulses are given and also of a pair of synchronized phase-coherent picoseCond pulses with a predetermined carrier-frequency difference.

TL;DR: In this paper, the dynamics of induced modulational instability in waveguides with saturable, third order nonlinearity was studied and the theoretical and numerical analysis revealed interesting features which could be exploited for all optical switching and processing.

TL;DR: By means of numerical studies and soliton perturbation theory, it is shown that higher-order linear and nonlinear terms in bandwidth-limited amplified soliton propagation are responsible for strong reductions of soliton-soliton interaction in such systems.