1,721,217 research outputs found
Generazione di forme d'onda arbitrarie nel visibile a partire da sorgenti a femtosecondi infrarosse
No full textMulticomponent rogue waves
No full textWe overview theoretical and experimental advances in the field of rogue wave solutions of multi-component optical wave systems. In these systems, the transfer of energy among the coupled waves may lead to novel and complex extreme wave phenomena. We focus our attention on the case of vector field co-propagation in randomly birefringent optical fibers, and on the coupling among counter propagating waves in a periodic nonlinear waveguide
Control of velocity-locked three wave parametric solitons and soliton based frequency conversion in quadratic nonlinear optics
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Three waves resonant interaction solitons: novel features and applications in nonlinear optics
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Shock Waves
No full textWe discuss the physics of shock waves with special emphasis on the phenomena related to the field of nonlinear fiber optics. We first introduce the general
mechanism commonly known as gradient catastrophe and the related concept of classical shock waves. Then we proceed to discuss the possible regularizationmechanisms of the shock, and in particular the dispersive regularization, which is behind the formation of dispersive shock waves in fibers. We then discuss different possible scenarios that lead to observe the formation of dispersive shock waves in fibers, such as pulse propagation, four-wave mixing, and passive resonators, also showing that fibers allow for investigating the dispersive regime of classical problems related to the physics of shock such as the dam break problem and the propagation of Riemann waves.We also discuss the phase-matchingmechanism that induces the shock
to efficiently radiate resonant radiation in the normal dispersion regime. Throughout the text we refer to the mathematical models and the approaches that are employed to describe such phenomenona
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