Control of pattern formation in a single feedback system by photonic lattices

Nicolas Marsal (1) , Delphine Wolfersberger (1) , Marc Sciamanna (1) , Germano Montemezzani (1) , Dragomir N. Neshev (2)

1 LMOPS - Laboratoire Matériaux Optiques, Photonique et Systèmes
2 Nonlinear Physics Centre

We investigate experimentally the possibility to control the pattern formation in a nonlinear photorefractive single feedback system by using a periodic photonic lattice. By varying the lattice strength and periodicity, we can induce patterns of particular symmetry, suppress the modulational instability or spatially control the pattern.

Domaines: Optique / photonique

Nicolas Marsal, Delphine Wolfersberger, Marc Sciamanna, Germano Montemezzani, Dragomir N. Neshev. Control of pattern formation in a single feedback system by photonic lattices. EOS Annual Meeting, Oct 2008, Paris, France. ⟨hal-00353232⟩