Observation of four Fermi-Pasta-Ulam-Tsingou recurrences in an ultra-low-loss optical fiber

Guillaume Vanderhaegen (1) , Pascal Szriftgiser (1) , Alexandre Kudlinski (1) , Matteo Conforti (1) , Stefano Trillo (2) , Maxime Droques (3) , Arnaud Mussot (1)

1 PhLAM - Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523
2 Engineering Department [Ferrara]
3 Alcatel - Alcatel R&D

We report the experimental observation of more than four Fermi-Pasta-Ulam-Tsingou recurrences in an optical fiber thanks to an ultra-low loss optical fiber and to an active loss compensation system. We observe both regular (in-phase) and symmetry-broken (phase-shifted) recurrences, triggered by the input phase. Experimental results are confirmed by numerical simulations.

Domaines: Optique [physics.optics]; Science non linéaire [physics]

Guillaume Vanderhaegen, Pascal Szriftgiser, Alexandre Kudlinski, Matteo Conforti, Stefano Trillo, et al.. Observation of four Fermi-Pasta-Ulam-Tsingou recurrences in an ultra-low-loss optical fiber. Optics Express, 2020, 28, ⟨10.1364/OE.391560⟩. ⟨hal-02937943⟩