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Open Access item Growth dynamics of noise-sustained structures in nonlinear optical resonators

Authors:Santagiustina, Marco
Colet, Pere
San Miguel, Maxi
Walgraef, Daniel
Issue Date:1998
Publisher:Optical Society of America
Citation:Optics Express 3: 63-70 (1998)
Abstract:The existence of macroscopic noise-sustained structures in nonlinear optics is theoretically predicted and numerically observed, in the regime of convective instability. The advection-like term, necessary to turn the instability to convective for the parameter region where advection overwhelms the growth, can stem from pump beam tilting or birefringence induced walk-off. The growth dynamics of both noise-sustained and deterministic patterns is exemplified by means of movies. This allows to observe the process of formation of these structures and to confirm the analytical predictions. The amplification of quantum noise by several orders of magnitude is predicted. The qualitative analysis of the near- and far-field is given. It suffices to distinguish noise-sustained from deterministic structures; quantitative informations can be obtained in terms of the statistical properties of the spectra. © 1998 Optical Society of America.
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