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Proceedings Article

Scintillation index of optical plane wave propagating through non-Kolmogorov moderate-strong turbulence

[+] Author Affiliations
Italo Toselli, Valter Ferrero

Politecnico di Torino (Italy)

Larry C. Andrews

Univ. of Central Florida

Ronald L. Phillips

Univ. of Central Florida, Florida Space Institute

Proc. SPIE 6747, Optics in Atmospheric Propagation and Adaptive Systems X, 67470B (October 29, 2007); doi:10.1117/12.737118
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From Conference Volume 6747

  • Optics in Atmospheric Propagation and Adaptive Systems X
  • Karin Stein; Anton Kohnle; John D. Gonglewski
  • Florence, Italy | September 17, 2007

abstract

An optical plane wave propagating through atmospheric turbulence is affected by irradiance fluctuations known as scintillation. The scintillation index of an optical wave in strong turbulence can be analyzed by extended Rytov theory, which uses filter functions to eliminate the effect of cell turbulence sizes that do not contribute to scintillation, and it already has been calculated by Kolmogorov's power spectral density model. However several experiments showed that Kolmogorov theory is sometimes incomplete to describe atmospheric turbulence properly. In this paper, for a horizontal path, we use extended Rytov theory to carry out plane wave scintillation index analysis in non Kolmogorov strong turbulence. We do it using a non Kolmogorov power spectrum which uses a generalized exponent factor and a generalized amplitude factor. Although our final expressions for the scintillation have been obtained by extended Rytov theory, which is necessary to adopt in strong turbulence conditions, they reduce to the proper results also in weak turbulence.

© (2007) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Italo Toselli ; Larry C. Andrews ; Ronald L. Phillips and Valter Ferrero
"Scintillation index of optical plane wave propagating through non-Kolmogorov moderate-strong turbulence", Proc. SPIE 6747, Optics in Atmospheric Propagation and Adaptive Systems X, 67470B (October 29, 2007); doi:10.1117/12.737118; http://dx.doi.org/10.1117/12.737118


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