Abstract
The irradiance fluctuations imposed on a laser beam that has propagated over horizontal terrestrial paths in the range of 2 to are compared to lognormal (LN) and gamma-gamma (GG) distributions. For the direct links reported here the irradiance fluctuations follow a LN distribution except in cases of weak turbulence, characterized by a scintillation index of less than 1 and a Fried parameter larger than the receiver aperture, in which case the GG distribution gives an improved fit. In very weak turbulence the difference between the two distributions is insignificant.
© 2011 Optical Society of America
Full Article | PDF ArticleMore Like This
Stephen D. Lyke, David G. Voelz, and Michael C. Roggemann
Appl. Opt. 48(33) 6511-6527 (2009)
Frida Strömqvist Vetelino, Cynthia Young, Larry Andrews, and Jaume Recolons
Appl. Opt. 46(11) 2099-2108 (2007)
Charles Nelson, Svetlana Avramov-Zamurovic, Olga Korotkova, Reza Malek-Madani, Raymond Sova, and Frederic Davidson
Appl. Opt. 52(31) 7449-7461 (2013)