Spatiotemporal instabilities in a Fabry-Perot resonator filled with sodium vapor

Year: 1993

Authors: La Penna P., Giusfredi G.

Autors Affiliation: Istituto Nazionale di Ottica, Largo E. Fermi 6, Firenze Italy

Abstract: We report on instabilities in the transmitted polarization of a laser beam crossing a planar Fabry-Perot resonator filled with sodium vapor, at a null magnetic field, when the input field is linearly polarized and tuned near the center of the Dl line. We have measured bifurcation diagrams in the input-power-cavity-detuning parameter space at various angles of incidence. The system shows monostability, bistability, and limit cycles in the transmitted polarization. Oscillations appear only when the angle of incidence is different from zero and the oscillation phase changes with the position on the transverse profile. The observed dynamics is explained by a simplified model which accounts for Zeeman and hyperfine pumpings, focusing and defocusing effects, and atomic motion. By means of this model, we have determined the codimensionality of the system within a theory of the dynamical systems.

Journal/Review: PHYSICAL REVIEW A

Volume: 48 (3)      Pages from: 2299  to: 2314

KeyWords: Instabilities; Fabry-Perot; Sodium
DOI: 10.1103/PhysRevA.48.2299

Citations: 19
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