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

Abstract : We present the observation of the manipulation of modulational instability in a nonlinear dissipative system by a periodic photonic lattice. We use a setup based on a photorefractive BaTiO3 crystal in a single feedback mirror configuration leading to the formation of hexagonal patterns. Additionally, we impose an optical lattice to induce one or two-dimensional photonic band-gap structures with variable parameters. We show that by varying the lattice periodicity, thus adjusting the transverse spatial frequencies associated to the bandgap, we can induce patterns of particular symmetry or suppress the modulational instability when the position of the lattice bandgap coincides with the instability gain.
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https://hal-supelec.archives-ouvertes.fr/hal-00437584
Contributor : Sébastien van Luchene <>
Submitted on : Tuesday, December 1, 2009 - 1:28:19 PM
Last modification on : Wednesday, April 15, 2020 - 11:38:12 AM
Long-term archiving on: : Thursday, June 17, 2010 - 10:52:50 PM

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  • HAL Id : hal-00437584, version 1

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Nicolas Marsal, Delphine Wolfersberger, Marc Sciamanna, Germano Montemezzani, Dragomir Neshev. Control of pattern formation in a single feedback system by photonic lattices. A Future In Light, Mar 2009, Metz, France. ⟨hal-00437584⟩

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