title: Experimental demonstration of the Fermi-Pasta-Ulam recurrence in a modulationally unstable optical wave.
abstract: Through a detailed spectral analysis of the propagation of square-shaped laser pulses in optical fibers, we provide the experimental demonstration of the Fermi-Pasta-Ulam recurrence phenomenon in modulationally unstable optical waves ruled by the nonlinear Schrödinger equation.
authors.affiliation: Service d'Optique et d'Acoustique, Université Libre de Bruxelles, 50 Avenue F. D. Roosevelt, CP 194/5, B-1050 Brussels, Belgium.
authors.forename: G
authors.initials: G
authors.lastname: Van Simaeys
authors.forename: P
authors.initials: P
authors.lastname: Emplit
authors.forename: M
authors.initials: M
authors.lastname: Haelterman