Modulational instability in dispersion oscillating fiber ring cavities

Matteo Conforti (1) , Arnaud Mussot (1) , Alexandre Kudlinski (1) , Stefano Trillo (2)

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

We show that the use of a dispersion oscillating fiber in passive cavities significantly extend modulational instability to novel high-frequency bands, which also destabilize the branches of the steady response which are stable with homogeneous dispersion. By means of Floquet theory, we obtain exact explicit expression for the sideband gain, and a simple analytical estimate for the frequencies of maximum gain. Numerical simulations show that stable stationary trains of pulses can be excited in the cavity.

Mots clés: Nonlinear optics; fibers; Resonators; Pulse propagation and temporal solitons; four-wave mixing

Domaines: Optique [physics.optics]; Formation de Structures et Solitons [nlin.PS]

Matteo Conforti, Arnaud Mussot, Alexandre Kudlinski, Stefano Trillo. Modulational instability in dispersion oscillating fiber ring cavities. Optics Letters, 2014, 39 (14), pp.4200. ⟨10.1364/OL.39.004200⟩. ⟨hal-02393900⟩