Scientific Results

Rogue waves in spatially extended optical systems

Year: 2012

Authors: Residori S., Bortolozzo U., Montina A., Lenzini F., Arecchi F.T.

Autors Affiliation: Univ Nice Sophia Antipolis, INLN, CNRS, F-06560 Valbonne, France; Perimeter Inst Theoret Phys, Waterloo, ON N2L 2Y5, Canada; Univ Florence, Dipartimento Fis, I-50125 Florence, Italy; CNR INO, I-50125 Florence, Italy

Abstract: Giant anomalous events may occur in systems characterized by many waves, with extremely high amplitude waves appearing with a probability much higher than expected for a random dynamics. Such rare, and giant, events are known to occur on the ocean surface and have been named, in that context, \”rogue waves\”. We present here some recent experimental results on the statistical properties of giant optical waves, or \”optical rogue waves\”, observed in spatially extended optical systems. We will present the main statistical features of such extreme events, then, based on both a linear and a nonlinear experiment, we will outline a way enabling us to identify two key ingredients at the origin of optical rogue waves, namely, granularity, that is, a minimal size of the individual light spots, and inhomogeneity, that is, clustering of the light spots into separate domains with different average intensities. In the linear experiment we measure also the statistics of the waiting times between successive rogue waves and we show that it follows a log-Poisson distribution, which is characteristics of event separation observed in cooperative, complex systems and in such different fields as geophysics and biology.

Journal/Review: FLUCTUATION AND NOISE LETTERS

Volume: 11 (1)      Pages from: 1240014  to: 1240014

More Information: This work has been partially supported by the ANR international program, project ANR-2010-INTB-402-02, \”COLORS.\”
KeyWords: Rogue waves; non-Gaussian statistics; nonlinear optics
DOI: 10.1142/S0219477512400147

Citations: 11
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English