Competition between phase-matching and stationarity in Kerr-driven optical pulse filamentation

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Daniele Faccio,¹ Alessandro Averchi,¹ Arnaud Couairon,² Audrius Dubietis,³ Rimtautas Piskarskas,³ Aidas Matijosius,³ Francesca Bragheri,⁴ Miguel A. Porras,⁵ Algis Piskarskas,³ and Paolo Di Trapani³
¹CNISM and Department of Physics and Mathematics, University of Insubria, Via Valleggio 11, 22100 Como, Italy
²Centre de Physique Théorique, CNRS UMR 7644, École Polytechnique, F-91128, Palaiseau, France
³Department of Quantum Electronics, Vilnius University, Sauletekio Avenue 9, building 3, LT-10222, Vilnius, Lithuania
⁴Department of Electronics, University of Pavia, Via Ferrata 1, 27100 Pavia, Italy
⁵Departamento de Fisíca Aplicada, ETSIM, Universidad Politécnica de Madrid, Rios Rosas 21, 28003 Madrid, Spain

Received 26 July 2006; published 25 October 2006

Experimentsshow that the spatiotemporal spectral broadening of an intense pumppulse in a Kerr medium in the presence of stronghigher-order dispersion does not lead to symmetric profiles, and hencecannot be interpreted as standard modulational instability of a planeand monochromatic nonlinear eigenmode. The highly asymmetric features of thegenerated (K, Omega ) spectrum are due to odd-order dispersion terms andare interpreted in terms of spontaneous formation of stationary conicalwaves.

URL:	http://link.aps.org/doi/10.1103/PhysRevE.74.047603
DOI:	10.1103/PhysRevE.74.047603
PACS:	42.65.Tg; 05.45.Yv; 41.20.Jb 42.65.Tg Optical solitons; nonlinear guided waves 05.45.Yv Solitons 41.20.Jb Electromagnetic wave propagation; radiowave propagation YEAR: 2006
KEYWORDS:	optical phase matching, optical Kerr effect, optical modulation, spatiotemporal phenomena, modulational instability

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