Stochastic and coherence resonance in lasers: homoclinic chaos and polarization bistability
Authors: Arecchi F.T., Meucci R.
Autors Affiliation: CNR- INO,Largo E. Fermi 6, I-50125 Florence, Italy
Univ Florence, Dept Phys, I-50121 Florence, Italy
Abstract: We report Stochastic Resonance and Coherence Resonance phenomena in experiments using CO(2) lasers. First, we consider a polarized laser with feedback; for suitable feedback parameters, the laser intensity undergoes homoclinic chaos consisting in the return to a saddle focus, where noise controls the permanence time around the saddle. Second, we discuss a quasi-isotropic laser where noise induces switching between two intensity components with mutually orthogonal polarization.
Journal/Review: EUROPEAN PHYSICAL JOURNAL B
Volume: 69 (1) Pages from: 93 to: 100
More Information: The authors acknowledge Fondazione ECRF for financial support and Silvano Mascalchi for technical help.KeyWords: Coherence resonance; Feedback parameters; Homoclinic chaos; Laser intensities; Noise control; Orthogonal polarizations; Polarization bistability; Polarized lasers; Saddle-focus; Stochastic resonances, Polarization; Random processes; Resonance; Signal analysis, LasersDOI: 10.1140/epjb/e2009-00099-1Citations: 18data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2019-10-13References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here