Symmetry breaking of the non nonlinear stage of modulation instability : a complete experimental characterization in optical fibers

Arnaud Mussot
Université de Lille, PHLAM/IRCICA
We report an original method enabling a non invasive characterization in phase and intensity of the longitudinal evolution of the main spectral components involved in the Fermi Pasta Ulam recurence process. We will show that it allows to evidence the symmetry breaking of the process. Future prospects and recent results will be presented.