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

Brandon Cochenour; Linda Mullen; John Muth

doi:10.1117/12.918711

11 June 2012 A modulated pulse laser for underwater detection, ranging, imaging, and communications

Brandon Cochenour, Linda Mullen, John Muth

Proceedings Volume 8372, Ocean Sensing and Monitoring IV; 83720S (2012) https://doi.org/10.1117/12.918711
Event: SPIE Defense, Security, and Sensing, 2012, Baltimore, Maryland, United States

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.

Citation Download Citation

Brandon Cochenour, Linda Mullen, and John Muth "A modulated pulse laser for underwater detection, ranging, imaging, and communications", Proc. SPIE 8372, Ocean Sensing and Monitoring IV, 83720S (11 June 2012); https://doi.org/10.1117/12.918711

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