Onset of subcritical bifurcation in a CO2 laser with feedback

Year: 1990

Authors: Wang P.Y., Lapucci A., Meucci R., Arecchi F.T.

Autors Affiliation: Istituto Nazionale di Ottica, Largi E. Fermi 6 50125, Firenze, Italy ;
Institute of Physics, Academia Sinica, Beijing China;
Department of Physics, University of Firenze, 50125 Firenze, Italy

Abstract: We report evidence of a subcritical pitchfork bifurcation in the operation of a CO2 laser with feedback for increasing feedback strength. The feedback consists in controlling the cavity losses with a signal proportional to the laser output intensity. The experimental results can be explained by means of a linear stability analysis in the framework of a two level model for the laser. A numerical simulation is also presented.


Volume: 80 (1)      Pages from: 42  to: 46

KeyWords: Chaos Theory; Computer Simulation; Laser Beams – Modulation; System Stability – Analysis, Hopf Bifurcation; Laser Cavity Losses Control; Laser Feedback; Linear Stability Analysis; Subcritical Bifurcation, Lasers, Carbon Dioxide
DOI: 10.1016/0030-4018(90)90503-L

Citations: 9
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