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Proceedings Paper

A modulated pulse laser for underwater detection, ranging, imaging, and communications
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Paper Abstract

A new, modulated-pulse, technique is currently being investigated for underwater laser detection, ranging, imag- ing, and communications. This technique represents a unique marriage of pulsed and intensity modulated sources. For detection, ranging, and imaging, the source can be congured to transmit a variety of intensity modulated waveforms, from single-tone to pseudorandom code. The utility of such waveforms in turbid underwater envi- ronments in the presence of backscatter is investigated in this work. The modulated pulse laser may also nd utility in underwater laser communication links. In addition to exibility in modulation format additional variable parameters, such as macro-pulse width and macro-pulse repetition rate, provide a link designer with additional methods of optimizing links based on the bandwidth, power, range, etc. needed for the application. Initial laboratory experiments in simulated ocean waters are presented.

Paper Details

Date Published: 11 June 2012
PDF: 10 pages
Proc. SPIE 8372, Ocean Sensing and Monitoring IV, 83720S (11 June 2012); doi: 10.1117/12.918711
Show Author Affiliations
Brandon Cochenour, Naval Air Systems Command (United States)
North Carolina State Univ. (United States)
Linda Mullen, Naval Air Systems Command (United States)
John Muth, North Carolina State Univ. (United States)

Published in SPIE Proceedings Vol. 8372:
Ocean Sensing and Monitoring IV
Weilin Will Hou; Robert Arnone, Editor(s)

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