Turbulent dynamics of an incoherently pumped passive optical fiber cavity: Quasisolitons, dispersive waves, and extreme events

M. Conforti (1) , Arnaud Mussot (1) , Julien Fatome (2) , Antonio Picozzi (2) , Stéphane Pitois (2) , Christophe Finot (2) , Marc Haelterman (3) , Bertrand Kibler (2) , Claire Michel (4) , Guy Millot (2)

1 PhLAM - Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523
2 ICB - Laboratoire Interdisciplinaire Carnot de Bourgogne
3 ULB - Université libre de Bruxelles
4 LPMC - Laboratoire de physique de la matière condensée

We study numerically and experimentally the dynamics of an incoherently pumped passive optical fiber ring cavity nearby the zero-dispersion wavelength of the fiber. We show that the cavity exhibits a quasisoliton turbulence dynamics, whose properties are controlled by the degree of coherence of the injected pump wave: As the coherence of the pump is degraded, the cavity exhibits a transition from the quasisoliton condensation regime toward the weakly nonlinear turbulent regime characterized by short-lived rogue wave events. This behavior is reminiscent of the corresponding dynamics obtained in the purely conservative (Hamiltonian) problem. We report experimental results of an all-integrated incoherently pumped fiber cavity that provide some spectral and temporal complementary signatures of the processes predicted numerically.

Domaines: Optique [physics.optics]

M. Conforti, Arnaud Mussot, Julien Fatome, Antonio Picozzi, Stéphane Pitois, et al.. Turbulent dynamics of an incoherently pumped passive optical fiber cavity: Quasisolitons, dispersive waves, and extreme events. Physical Review A : Atomic, molecular, and optical physics [1990-2015], 2015, 91, pp.023823. ⟨10.1103/PhysRevA.91.023823⟩. ⟨hal-01119133⟩