The Effect of Partially Coherent Quasi-Monochromatic Gaussian-Beam on the Probability of Fade

O. Korotkova, L. C. Andrews, R. L. Phillips

Research output: Contribution to journalConference article

15 Scopus citations

Abstract

The effect of a (spatially) partially coherent quasi-monochromatic lowest order Gaussian-beam on the direct detection system is studied in weak and strong atmospheric turbulence. The analytic expression for the scintillation index has been developed and analyzed as a function of the spatial correlation distance l c and the correlation time τ S, associated with the source, as well as the strength of turbulence and the integration time τ d of the detector. The probability of fade is also discussed as a function of relative detector speed τ d / τ S including limiting cases of slow (τ d≫τ ss) and fast (τ d≪τ s) detector.

Original languageEnglish (US)
Pages (from-to)68-77
Number of pages10
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5160
DOIs
StatePublished - Dec 1 2003
Externally publishedYes
EventFree-Space Laser Communication and Active Laser Illumination III - San Diego, CA, United States
Duration: Aug 4 2003Aug 6 2003

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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