Temporal dynamics of incoherent waves in noninstantaneous response nonlinear Kerr media

Abstract : We consider the temporal evolution of an incoherent optical wave that propagates in a noninstantaneous response nonlinear medium, such as single mode optical fibers. In contrast with the expected Raman-like spectral redshift due to a delayed nonlinear response, we show that a highly noninstantaneous response leads to a genuine modulational instability of the incoherent optical wave. We derive a Vlasov-like kinetic equation that provides a detailed description of this process of incoherent modulational instability in the temporal domain.
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Bertrand Kibler, Claire Michel, Josselin Garnier, Antonio Picozzi. Temporal dynamics of incoherent waves in noninstantaneous response nonlinear Kerr media. Optics Letters, Optical Society of America, 2012, 37 (13), pp.2472. ⟨10.1364/OL.37.002472⟩. ⟨hal-00844376⟩

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