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Proceedings Article

Recent progress in short-range ultraviolet communication

[+] Author Affiliations
Gary A. Shaw, Andrew M. Siegel, Joshua Model, Daniel Greisokh

MIT Lincoln Lab. (USA)

Proc. SPIE 5796, Unattended Ground Sensor Technologies and Applications VII, 214 (June 02, 2005); doi:10.1117/12.603196
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From Conference Volume 5796

  • Unattended Ground Sensor Technologies and Applications VII
  • Edward M. Carapezza
  • Orlando, Florida, USA | March 28, 2005

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.

© (2005) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Gary A. Shaw ; Andrew M. Siegel ; Joshua Model and Daniel Greisokh
"Recent progress in short-range ultraviolet communication", Proc. SPIE 5796, Unattended Ground Sensor Technologies and Applications VII, 214 (June 02, 2005); doi:10.1117/12.603196; http://dx.doi.org/10.1117/12.603196


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