First experimental demonstration of full-duplex communications on a single laser beam

Thomas M. Shay; John A. MacCannell; Christopher D. Garrett; David A. Hazzard; Jason A. Payne; Norman Dahlstrom; S. Horan

doi:10.1117/12.508511

27 January 2004 First experimental demonstration of full-duplex communication on a single laser beam

Thomas M. Shay, John A. MacCannell, Christopher D. Garrett, David A. Hazzard, Jason A. Payne, Norman Dahlstrom, S. Horan

Author Affiliations +

Proceedings Volume 5160, Free-Space Laser Communication and Active Laser Illumination III; (2004) https://doi.org/10.1117/12.508511
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

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.

Citation Download Citation

Thomas M. Shay, John A. MacCannell, Christopher D. Garrett, David A. Hazzard, Jason A. Payne, Norman Dahlstrom, and S. Horan "First experimental demonstration of full-duplex communication on a single laser beam", Proc. SPIE 5160, Free-Space Laser Communication and Active Laser Illumination III, (27 January 2004); https://doi.org/10.1117/12.508511

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