Pseudo-spatial coherence resonance in an excitable laser with long delayed feedback
Authors: Marino F., Giacomelli G.
Autors Affiliation: CNR – Istituto Nazionale di Ottica, largo E. Fermi 6, Firenze, I-50125, Italy; CNR – Istituto dei Sistemi Complessi, via Madonna del Piano 10, Sesto Fiorentino, I-50019, Italy
Abstract: The effect of noise in an excitable semiconductor laser with feedback is studied in the framework of the spatio-temporal representation of long delayed systems. Propagation, noise-induced creation, and destruction of excitable pulses in the pseudo time are observed. The addition of a variable quantity of noise leads to the occurrence of a phenomenon that we term \”pseudo-spatial coherence resonance.\” A phenomenological model well describes the system and allows for a comparison with the experimental observations. A simple Monte Carlo approach is also introduced and permits to explain the features observed in terms of the key dynamical ingredients of the physical system. Published by AIP Publishing.
Volume: 27 (11) Pages from: 114302 to: 114302
KeyWords: semiconductor laser; coherence resonanc; DOI: 10.1063/1.5006744Citations: 7data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2020-08-02References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here