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Proceedings Paper

First experimental demonstration of full-duplex communications on a single laser beam
Author(s): Thomas M. Shay; John A. MacCannell; Christopher D. Garrett; David A. Hazzard; Jason A. Payne; Norman Dahlstrom; S. Horan
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Paper Abstract

We present the first experimental demonstration of full-duplex communication on a single laser beam. The forward link beam simultaneously transmits the forward link data and serves as the carrier wave for the return link. A fraction of incident forward link beam is modulated and retro-reflected back to the receiver location. The forward link data format must be designed so that it is invisible to the return link’s data detection system. We have named this architecture the “Lightwire. In addition there was no system trade-off required by this architecture. Thus we have demonstrated full-duplex on a single optical beam without any performance penalty. We will present the experimental system and discuss the experimental results.

Paper Details

Date Published: 27 January 2004
PDF: 7 pages
Proc. SPIE 5160, Free-Space Laser Communication and Active Laser Illumination III, (27 January 2004); doi: 10.1117/12.508511
Show Author Affiliations
Thomas M. Shay, Univ. of New Mexico (United States)
John A. MacCannell, Univ. of New Mexico (United States)
Christopher D. Garrett, New Mexico State Univ. (United States)
David A. Hazzard, New Mexico State Univ. (United States)
Jason A. Payne, New Mexico State Univ. (United States)
Norman Dahlstrom, New Mexico State Univ. (United States)
S. Horan, New Mexico State Univ. (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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