Article Dans Une Revue Physical Review X Année : 2014

Observation of Optical Undular Bores in Multiple Four-Wave Mixing

Résumé

We demonstrate that wave-breaking dramatically affects the dynamics of nonlinear frequency conversion processes that operate in the regime of high efficiency (strong multiple four-wave mixing). In particular, by exploiting an all-optical-fiber platform, we show that input modulations propagating in standard telecom fibers in the regime of weak normal dispersion lead to the formation of undular bores (dispersive shock waves) that mimic the typical behavior of dispersive hydrodynamics exhibited, e.g., by gravity waves and tidal bores. Thanks to the nonpulsed nature of the beat signal employed in our experiment, we are able to clearly observe how the periodic nature of the input modulation forces adjacent undular bores to collide elastically.

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hal-00987287 , version 1 (05-05-2014)

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Julien Fatome, Christophe Finot, Guy Millot, Andrea Armaroli, Stefano Trillo. Observation of Optical Undular Bores in Multiple Four-Wave Mixing. Physical Review X, 2014, 4, pp.021022. ⟨10.1103/PhysRevX.4.021022⟩. ⟨hal-00987287⟩
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