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Proceedings Paper

Studies of free-space optical links through simulated boundary layer and long-path turbulence
Author(s): Linda Wasiczko; Igor I Smolyaninov; Stuart D Milner; Christopher C Davis
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Paper Abstract

There is recent interest from the US Department of Defense in free space optical communication networks involving aircraft flying at various altitudes. The optical links between these aircraft may be as long as 100km, and involve communication between network nodes that are moving at sub-sonic speeds. An unresolved issue for links of this kind between pairs of aircraft is the effect of boundary layer turbulence near each aircraft, as well as along the atmospheric path between them. The deployment of optical wireless links in several different scenarios will be described. These include links near to the ground for which the turbulence parameter Cn2 varies along the path between transmitter (TX) and receiver (RX), high altitude links between aircraft, and ground to aircraft links. The last two of these may involve boundary layer turbulence near the aircraft node where the turbulence is localized either at the TX or at the RX. Some of the theoretical approaches to examining these situations will be described, as well as an ongoing program of research to examine these situations experimentally. Ways to mitigate the effects of node motion, and scintillation at the RX will be discussed, including the use of non-imaging concentrators at the RX.

Paper Details

Date Published: 6 February 2004
PDF: 9 pages
Proc. SPIE 5237, Optics in Atmospheric Propagation and Adaptive Systems VI, (6 February 2004); doi: 10.1117/12.511365
Show Author Affiliations
Linda Wasiczko, Univ. of Maryland/College Park (United States)
Igor I Smolyaninov, Univ. of Maryland/College Park (United States)
Stuart D Milner, Univ. of Maryland/College Park (United States)
Christopher C Davis, Univ. of Maryland/College Park (United States)

Published in SPIE Proceedings Vol. 5237:
Optics in Atmospheric Propagation and Adaptive Systems VI
John D. Gonglewski; Karin Stein, Editor(s)

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