Study of stochastic synchronization in vertical-cavity lasers
Year: 2004
Authors: Barbay S., Lepri S., Giacomelli G.
Autors Affiliation: Laboratoire de Photonique et de Nanostructures, CNRS-UPR 20, Route de Nozay 91460 Marcoussis, France;
Istituto Nazionale per la Fisica della Materia, Unità di Ricerca di Firenze, Via G. Sansone 1 50019 Sesto Fiorentino, Italy;
Istituto Nazionale di Ottica Applicata, Largo E. Fermi 6, 50125 Firenze, Italy
Abstract: Characterization of noise-induced phase synchronization (NIPS) in a vertical-cavity surface-emitting laser (VCSEL) is reported. An optimal amount of white, gaussian noise induces an effective phase entrainment between the polarized laser emission and the periodic pump modulation. The phenomenon is characterized through suitable indicators as the average frequency of the output signal and the diffusion coefficient of the relative phase. Their values are roughly independent on different waveforms of periodic input, provided that a simple condition for the amplitudes is satisfied. The experimental results are compared with a Langevin model, Monte-Carlo simulations and analytical solutions of a Master equation for the phase dynamics.
Journal/Review: PROCEEDINGS OF SPIE
Volume: 5471 Pages from: 233 to: 243
KeyWords: Bistability; stochastic resonance; phase synchronization; Vertical Cavity Surface-Emitting Laser; DOI: 10.1117/12.547030Connecting to view paper tab on IsiWeb: Click here