Scientific Results

Generalized parametric fluorescence in wave coupling

Year: 1997

Authors: Trillo Stefano, Wabnitz Stefan

Autors Affiliation: Fondazione Ugo Bordoni, Rome, Italy

Abstract: The coupling of two or more intense waves occur under a variety of interactions [second harmonic generation (SHG), three-wave and four-wave mixing, nonlinear polarization rotation (NPR), and directional coupling of guided modes]. In the cw regime, these interactions lead to periodic change of energy among the waves. The modulational instability (MI) sets the fundamental limit to the maximum useful interaction length for parametrically coupled beams. MI is enhanced when the period of the cw dynamics shows a high degree of sensitivity to the control parameters of the process. This occurs when the phase-matching condition ? = 0 in SHG, or the critical power p = 1 in NPR.

Conference title:

KeyWords: Electromagnetic waves; Four wave mixing; Optical rotation; Phase shift; Polarization; Second harmonic generation, Modulational instability; Wave coupling, Fluorescence
DOI: 10000000000

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