CO2 laser with modulated losses: Theoretical models and experiments in the chaotic regime

Year: 1993

Authors: Pando L.C.L., Meucci R., Ciofini M., Arecchi F.T.

Autors Affiliation: International Center of Theoretical Physics (I.C.T.P.), Strada Costiera 11, P.O. Box 586, Trieste Italy;
Istituto Nazionale di Ottica, Largo E. Fermi 6, 50125 Firenze, Italy

Abstract: We compare two different theoretical models for a CO2 laser, namely, the two- and four-level model, and show that the second one traces with much better accuracy the experimentally observed chaotic dynamics when the cavity losses are sinusoidally modulated. Even though the two-level model provides a qualitative explanation of the chaotic dynamics, only the four-level one assures a quantitative fitting. We also show that, at the onset of chaos, the chaotic dynamics is low dimensional and can be described in terms of a noninvertible one-dimensional map.

Journal/Review: CHAOS

Volume: 3(3)      Pages from: 279  to: 285

More Information: This work was partly supported by the E.C. Contract No. SCI*-CT91-0697 (TSTS). C. L. P. L. is grateful for the hospitality of the Condensed Matter Group and Professor H. Cerdeira at the International Center of Theoretical Physics (Trieste, Italy). The authors also thank Professor G. Denardo for encouraging this work.
DOI: 10.1063/1.165991

Citations: 29
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