Stabilization of unstable fixed points in the dynamics of a laser with feedback
Authors: Ciofini M., Labate A., Meucci R., Galanti M.
Autors Affiliation: Istituto Nazionale di Ottica, Largo E. Fermi 6, 50125 Firenze, Italy;
Dipartimento di Sistemi e Informatica, University of Florence, Via Santa Marta 3, 50139 Florence, Italy
Abstract: We report theoretical and experimental results on the stabilization of unstable steady states in a CO2 laser with feedback. Periodic and chaotic oscillations have been suppressed by means of a control loop consisting-of a high-pass filter, known as washout filter. Although the filter characteristics are determined on the basis of linear analysis, taking into account the problem of robustness with respect to parameter changes; the present control strategy provides a large attractive domain in the phase space.
Journal/Review: PHYSICAL REVIEW E
Volume: 60 (1) Pages from: 398 to: 402
KeyWords: Chaos theory; Degrees of freedom (mechanics); Electrooptical devices; Feedback; High pass filters; Laser pulses; Light modulators; Mathematical models; Phase space methods; System stability, Washout filters, Carbon dioxide lasersDOI: 10.1103/PhysRevE.60.398Citations: 34data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2021-08-01References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here