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Optical Engineering

Measurements of intensity scintillations and probability density functions of retroreflected broadband 980-nm laser light in atmospheric turbulence
Author(s): Frederic M. Davidson; Stephane Bucaille; G. Charmaine Gilbreath; Eun S. Oh
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Paper Abstract

Intensity scintillation variances and intensity probability density functions (PDFs) were experimentally measured for broadband (2 nm), 980-nm laser light reflected by two or more corner cube retroreflectors as a function of retroreflector lateral spacing over a short (75 m) atmospheric optical path. The PDFs transitioned from broad double-peaked beta-shaped densities to lognormal as the retroreflector spacing was increased to exceed the optical field's lateral coherence length. Specific spacing for a given average atmospheric structural Cn2 eliminated interference between the light beams returned by the retroreflectors.

Paper Details

Date Published: 1 November 2004
PDF: 7 pages
Opt. Eng. 43(11) doi: 10.1117/1.1795259
Published in: Optical Engineering Volume 43, Issue 11
Show Author Affiliations
Frederic M. Davidson, Johns Hopkins Univ. (United States)
Stephane Bucaille, Thales (France)
G. Charmaine Gilbreath, Naval Research Lab. (United States)
Eun S. Oh, Naval Research Lab. (United States)


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