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Proceedings Paper

High-data-rate underwater laser communications
Author(s): Jacob R. Longacre; Dennis E. Freeman; Judith Bannon Snow
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Paper Abstract

The high frequency of optical radiation permits high data rate communications in the megahertz (MHz) regime. To the best of our knowledge, no unguided, underwater high data rate communications system has been reported. In this research, we investigate the feasibility of a short range, high data rate underwater laser communications system. The present study considers two independent systems that are separated by several attenuation lengths with regard to signal acquisition, communications channel lock, and information transfer. System self-alignment of the transmitter onto the receiver is demonstrated in a small laboratory water tank. Successful transmission of light modulated at MHz rates is demonstrated in a pool over an extended water path.

Paper Details

Date Published: 1 September 1990
PDF: 7 pages
Proc. SPIE 1302, Ocean Optics X, (1 September 1990); doi: 10.1117/12.21462
Show Author Affiliations
Jacob R. Longacre, Naval Underwater Systems Ctr. (United States)
Dennis E. Freeman, Naval Underwater Systems Ctr. (United States)
Judith Bannon Snow, Naval Underwater Systems Ctr. (United States)

Published in SPIE Proceedings Vol. 1302:
Ocean Optics X
Richard W. Spinrad, Editor(s)

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