Spectral incoherent solitons: a localized soliton behavior in the frequency domain

We show both theoretically and experimentally in an optical fiber system that a noninstantaneous nonlinear environment supports the existence of spectral incoherent solitons. Contrary to conventional solitons, spectral incoherent solitons do not exhibit a confinement in the spatiotemporal domain, bu...

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Bibliographic Details
Published in:Physical review letters 2008-08, Vol.101 (9), p.093901-093901, Article 093901
Main Authors: Picozzi, Antonio, Pitois, Stéphane, Millot, Guy
Format: Article
Language:English
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Summary:We show both theoretically and experimentally in an optical fiber system that a noninstantaneous nonlinear environment supports the existence of spectral incoherent solitons. Contrary to conventional solitons, spectral incoherent solitons do not exhibit a confinement in the spatiotemporal domain, but exclusively in the frequency domain. The theory reveals that the causality condition inherent to the nonlinear response function is the key property underlying the existence of spectral incoherent solitons. These solitons constitute nonequilibrium stable states of the incoherent field and are shown to be robust with respect to binary collisions.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.101.093901