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* Corresponding author 1 LICB - Laboratoire Interdisciplinaire Carnot de Bourgogne Dijon 2 PhLAM - Laboratoire de Physique des Lasers, Atomes et Molécules Lille 3 University of Ferrara Ferrara 4 ISMO - Institut des Sciences Moléculaires d-Orsay 5 Max Planck Institute für quantenoptik

Abstract : We investigate analytically, numerically and experimentally the spectral broadening of pulses that undergo the formation of dispersive shocks, addressing in particular pulses in the range of tens of ps generated via electro-optic modulation of a continuous-wave laser. We give an analytical estimate of the maximal spectral extension and show that super-Gaussian waveforms favor the generation of flat-topped spectra. We also show that the weak residual background of the modulator produces undesired spectral ripples. Spectral measurements confirm our estimates and agree well with numerical integration of the nonlinear Schrödinger equation.





Autor: Alexandre Parriaux - M Conforti - A Bendahmane - Julien Fatome - Christophe Finot - Stefano Trillo - Nathalie Picque - Guy Millot

Fuente: https://hal.archives-ouvertes.fr/



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