We investigate the temporal photonic analogue of the dam breaking phenomenon of shallow water. We observe the decay of a steep input front, representing the photonic dam, into counter-propagating rarefaction and dispersive shock wave. Our measurement shows the clear evidence of a critical transition of the dispersive shock wave into a self-cavitating state, characterized by the presence of a null-intensity point into the shock fan. The precise measurements of the temporal waveform of the cavitating state dynamics allows for a fully quantitative test of the Whitham modulation theory applied to the defocusing nonlinear Schroedinger equation.

Observation of the rupture of a photon dam in an optical ber

Stefano Trillo
2017

Abstract

We investigate the temporal photonic analogue of the dam breaking phenomenon of shallow water. We observe the decay of a steep input front, representing the photonic dam, into counter-propagating rarefaction and dispersive shock wave. Our measurement shows the clear evidence of a critical transition of the dispersive shock wave into a self-cavitating state, characterized by the presence of a null-intensity point into the shock fan. The precise measurements of the temporal waveform of the cavitating state dynamics allows for a fully quantitative test of the Whitham modulation theory applied to the defocusing nonlinear Schroedinger equation.
2017
978-0-7503-1460-2
Shock Waves, Fiber Optics, Nonlinear Optics
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2401452
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