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 language | English |
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Article number | 063820 |
Number of pages | 7 |
Journal | Physical Review A |
Volume | 75 |
Issue number | 6 |
DOIs | |
Publication status | Published - 21 Jun 2007 |
Keywords
- optics
- physics
- statistics
- Levy regime
- laser
- beams
- laser fluctuations
- light