Optical rogue wave statistics in laser filamentation

1GAP GAP-Biophotonics, University of Geneva, 21211 Geneva 4, Switzerland.
Optics Express (Impact Factor: 3.49). 08/2009; 17(14):12070-5. DOI: 10.1364/OE.17.012070
Source: PubMed


We experimentally observed optical rogue wave statistics during high power femtosecond pulse filamentation in air. We characterized wavelength-dependent intensity fluctuations across 300 nm broadband filament spectra generated by pulses with several times the critical power for filamentation. We show how the statistics vary from a near-Gaussian distribution in the vicinity of the pump to a long tailed "L-shaped" distribution at the short wavelength and long wavelength edges. The results are interpreted in terms of pump noise transfer via self-phase modulation.

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    • "The possibility to reproduce such rogue waves in optical temporal systems (Hammani et al., 2008; Solli et al., 2008) with characteristics similar to those encountered in the ocean is not surprising since the self-focusing Nonlinear Shrödinger Equation (NLSE) reflects the temporal nonlinear dynamics of waves propagating in both fibre optics (Agraval, 1995) and ocean surface (Za- Correspondence to: E. Louvergneaux ( kharov, 1968; Onorato et al., 2001; Kharif and Pelinovsky, 2003). These rogue events were also predicted and studied in spatially extended systems (Kim and Ott, 2003; Du et al., 2008) and discrete optical systems (Bludov et al., 2009) before being experimentally evidenced very lately in an optical ring cavity (Montina et al., 2009) and in laser filamentation (Kasparian et al., 2009). This leads to one of the main and attractive research activity in optics. "
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