Statistical regimes of random laser fluctuations

Lepri, Stefano and Cavalieri, Stefano and Oppo, Gian-Luca and Wiersma, Diederik S. (2007) Statistical regimes of random laser fluctuations. Physical Review A, 75 (6). 063820. ISSN 1094-1622

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    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.

    ORCID iDs

    Lepri, Stefano, Cavalieri, Stefano, Oppo, Gian-Luca ORCID logoORCID: https://orcid.org/0000-0002-5376-4309 and Wiersma, Diederik S.;
    • Item type:Article
      ID code:6171
      Dates:
      Date
      Event
      21 June 2007
      Published
      Keywords:optics, physics, statistics, Levy regime, laser, beams, laser fluctuations, light, Optics. Light, Atomic and Molecular Physics, and Optics
      Subjects:Science > Physics > Optics. Light
      Department:Faculty of Science > Physics
      Depositing user: Miss Darcy Spiller
      Date deposited:21 May 2008
      Last modified:07 May 2021 04:21
      Related URLs:
      URI:https://strathprints.strath.ac.uk/id/eprint/6171
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