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Proceedings Paper

Measuring optical turbulence parameters with a three-aperture receiver
Author(s): David T. Wayne; Ronald L. Phillips; Larry C. Andrews; Frida Stromömqvist Vetelino; Brad Griffis; Michael R. Borbath; Darren J. Galus; Christopher Visone
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Paper Abstract

Intensity fluctuations from a 532nm CW laser source were collected over an outdoor 1km path, 2m above the ground, with three different receiving apertures. The scintillation index was found for each receiving aperture and recently developed theory for all regimes of optical turbulence was used to infer three atmospheric parameters, Cn2, l0, and L0. Parallel to the three-aperture data collection was a commercial scintillometer unit which reported Cn2 and crosswind speed. There was also a weather station positioned at the receiver side which provided point measurements for temperature and wind speed. The Cn2 measurement obtained from the commercial scintillometer was used to infer l0, L0, and the scintillation index. Those values were then compared to the inferred atmospheric parameters from the experimental data. Finally, the optimal aperture sizes for data collection with the three-aperture receiver were determined.

Paper Details

Date Published: 25 September 2007
PDF: 9 pages
Proc. SPIE 6709, Free-Space Laser Communications VII, 67090L (25 September 2007); doi: 10.1117/12.735693
Show Author Affiliations
David T. Wayne, Univ. of Central Florida, Florida Space Institute (United States)
Ronald L. Phillips, Univ. of Central Florida, Florida Space Institute (United States)
Larry C. Andrews, Univ. of Central Florida (United States)
Frida Stromömqvist Vetelino, Univ. of Central Florida (United States)
Brad Griffis, Computer Science Corp. (United States)
Michael R. Borbath, Harris Corp. (United States)
Darren J. Galus, Harris Corp. (United States)
Christopher Visone, Harris Corp. (United States)


Published in SPIE Proceedings Vol. 6709:
Free-Space Laser Communications VII
Arun K. Majumdar; Christopher C. Davis, Editor(s)

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