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Proceedings Paper

Scintillation measurements of broadband 980-nm laser light in clear air turbulence
Author(s): Frederic M. Davidson; Stephane Bucaille; G. Charmaine Gilbreath; Eun Oh
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Paper Abstract

Free-space atmospheric direct detection optical communication at 980 nm with multiple quantum well retro-reflectors is attractive because of the availability of high power, good beam quality 980 nm laser diodes as transmitters and very low noise silicon avalanche photodiodes for use in the receivers. The paper will report the results of measurements of intensity fading statistics for broadband, low coherence volume 980 nm laser sources. In addition, results of measurement of both intensity spatial correlation lengths and optical field spatial correlation lengths will be described. The former determines receiver performance and the latter the optimal positioning of arrays of MQW retro-reflectors to make best use of the spatial diversity of the atmospheric channel.

Paper Details

Date Published: 27 January 2004
PDF: 12 pages
Proc. SPIE 5160, Free-Space Laser Communication and Active Laser Illumination III, (27 January 2004); doi: 10.1117/12.504863
Show Author Affiliations
Frederic M. Davidson, Johns Hopkins Univ. (United States)
Stephane Bucaille, Johns Hopkins Univ. (United States)
G. Charmaine Gilbreath, Naval Research Lab. (United States)
Eun Oh, Naval Research Lab. (United States)

Published in SPIE Proceedings Vol. 5160:
Free-Space Laser Communication and Active Laser Illumination III
David G. Voelz; Jennifer C. Ricklin, Editor(s)

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