Rogue wave

About: Rogue wave is a research topic. Over the lifetime, 2977 publications have been published within this topic receiving 70933 citations. The topic is also known as: freak wave & monster wave.

Optical rogue-wave-like extreme value fluctuations in fiber Raman amplifiers

Abstract: We report experimental observation and characterization of rogue wave-like extreme value statistics arising from pump-signal noise transfer in a fiber Raman amplifier. Specifically, by exploiting Raman amplification with an incoherent pump, the amplified signal is shown to develop a series of temporal intensity spikes whose peak power follows a power-law probability distribution. The results are interpreted using a numerical model of the Raman gain process using coupled nonlinear Schrodinger equations, and the numerical model predicts results in good agreement with experiment.

A possible freak wave event measured at the draupner jacket January 1 1995

Abstract: A brief informal description of the weather conditions at the Draupner platform January 1. 1995 is given. During this day a wave with a majestic crest height, often referred to as the New Year Wave or the Draupner Wave, was measured by a down-looking laser. The crest height is clearly an outlier in view of what is expected for that sea state and is considered as a possible freak wave event.

Granularity and inhomogeneity are the joint generators of optical rogue waves.

Abstract: In the presence of many waves, giant events can occur with a probability higher than expected for random dynamics. By studying linear light propagation in a glass fiber, we show that optical rogue waves originate from two key ingredients: granularity, or a minimal size of the light speckles at the fiber exit, and inhomogeneity, that is, speckles clustering into separate domains with different average intensities. These two features characterize also rogue waves in nonlinear systems; thus, nonlinearity just plays the role of bringing forth the two ingredients of granularity and inhomogeneity.

Technical Note Analysis of freak wave measurements in the Sea of Japan

Abstract: This paper presents an analysis of a set of available freak wave measurements gatheredfrom several periods of continuous wave recordings made in the Sea of Japan during 1986–1990 by the Ship Research Institute of Japan. The analysis provides an ideal opportunity tocatch a glimpse of the statistics of freak waves in the ocean. The results show that a well-defined freak wave may occur in the developed wind–wave condition: S(f) f 4 , with single-peak directional spectra. The crest and trough amplitude distributions of the observed seawaves including freak waves are different from the Rayleigh distribution, although the waveheight distribution tends to agree with the Rayleigh distribution. Freak waves can be readilyidentified from the wavelet spectrum where a strong energy density occurs in the spectrum,and is instantly surged and seemingly carried over to the high-frequency components at theinstant the freak wave occurs. 2002 Elsevier Science Ltd. All rights reserved. Keywords: Freak wave; Wave statistics; Wave height distribution; Wavelet analysis; Sea of Japan* Corresponding author. Tel.: +81-471-821-181; fax:+81-471-847-142.E-mail address:mori@criepi.denken.or.jp (N. Mori).

Controllable optical rogue waves in the femtosecond regime.

Abstract: We derive analytical rogue wave solutions of variable-coefficient higher-order nonlinear Schrodinger equations describing the femtosecond pulse propagation via a transformation connected with the constant-coefficient Hirota equation. Then we discuss the propagation behaviors of controllable rogue waves, including recurrence, annihilation, and sustainment in a periodic distributed fiber system and an exponential dispersion decreasing fiber. Finally, we investigate nonlinear tunneling effects for rogue waves.