Statistical regimes of random laser fluctuations

Stefano Lepri, Stefano Cavalieri, Gian-Luca Oppo, Diederik S. Wiersma

Research output: Contribution to journalArticle

70 Citations (Scopus)
15 Downloads (Pure)

Abstract

Statistical fluctuations of the light emitted from amplifying random media are studied theoretically and numerically. The characteristic scales of the diffusive motion of light lead to Gaussian or power-law (Lévy) distributed fluctuations depending on external control parameters. In the Lévy regime, the output pulse is highly irregular leading to huge deviations from a mean-field description. Monte Carlo simulations of a simplified model which includes the population of the medium demonstrate the two statistical regimes and provide a comparison with dynamical rate equations. Different statistics of the fluctuations helps to explain recent experimental observations reported in the literature.
Original languageEnglish
Article number063820
Number of pages7
JournalPhysical Review A
Volume75
Issue number6
DOIs
Publication statusPublished - 21 Jun 2007

Keywords

  • optics
  • physics
  • statistics
  • Levy regime
  • laser
  • beams
  • laser fluctuations
  • light

Cite this