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Proceedings Paper

Recent progress in short-range ultraviolet communication
Author(s): Gary A. Shaw; Andrew M. Siegel; Joshua Model; Daniel Greisokh
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Paper Abstract

This paper describes recent advances in the technology for, and implementation of, short-range optical communication links. The approach relies on molecular scattering of ultraviolet wavelengths by the atmosphere to achieve non-line-of-sight, omni-directional communication links. The same technology is also shown to be attractive for certain classes of line-of-sight links. A UV communication testbed implementation is described that is unique, employing research-grade semiconductor sources emitting in the solar-blind region of the UV spectrum, around 275nm. This paper extends previously reported field measurements to longer ranges and to a wider variety of application scenarios, including operation under tree canopy and operation in short-range quasi-line-of-sight links. Field measurements of atmospheric extinction at 275nm are reported and incorporated in a single-scatter propagation model to predict performance of line-of-sight links. Application of UV communication to foliage penetration uplinks is described, and performance is quantified through field measurements.

Paper Details

Date Published: 27 May 2005
PDF: 12 pages
Proc. SPIE 5796, Unattended Ground Sensor Technologies and Applications VII, (27 May 2005); doi: 10.1117/12.603196
Show Author Affiliations
Gary A. Shaw, MIT Lincoln Lab. (United States)
Andrew M. Siegel, MIT Lincoln Lab. (United States)
Joshua Model, MIT Lincoln Lab. (United States)
Daniel Greisokh, MIT Lincoln Lab. (United States)


Published in SPIE Proceedings Vol. 5796:
Unattended Ground Sensor Technologies and Applications VII
Edward M. Carapezza, Editor(s)

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