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Proceedings Paper

Free space optical system performance for laser beam propagation through non-Kolmogorov turbulence
Author(s): Italo Toselli; Larry C. Andrews; Ronald L. Phillips; Valter Ferrero
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Paper Abstract

Free space laser system performance is limited by atmospheric turbulence that has been described for many years by Kolmogorov's power spectral density model because of its simplicity. Unfortunately several experiments have been reported recently that show Kolmogorov theory is sometimes incomplete to describe atmospheric statistics properly, in particular in portions of the troposphere and stratosphere. In this paper we present a Non-Kolmogorov power spectrum which uses a generalized exponent instead of constant standard exponent value 11/3 and a generalized amplitude factor instead of constant value 0.033. Using this new spectrum in weak turbulence, we carry out, for horizontal path, analysis of Long Term Beam Spread, Scintillation index, Probability of fade, mean SNR and mean BER as variation of the spectrum exponent.

Paper Details

Date Published: 6 February 2007
PDF: 11 pages
Proc. SPIE 6457, Free-Space Laser Communication Technologies XIX and Atmospheric Propagation of Electromagnetic Waves, 64570T (6 February 2007); doi: 10.1117/12.698707
Show Author Affiliations
Italo Toselli, Politecnico di Torino (Italy)
Larry C. Andrews, Univ. of Central Florida (United States)
Ronald L. Phillips, Florida Space Institute, Univ. of Central Florida (United States)
Valter Ferrero, Politecnico di Torino (Italy)


Published in SPIE Proceedings Vol. 6457:
Free-Space Laser Communication Technologies XIX and Atmospheric Propagation of Electromagnetic Waves
Steve Mecherle; Olga Korotkova, Editor(s)

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