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Optical Engineering

Physical layer simulator for undersea free-space laser communications
Author(s): Fraser R. Dalgleish; Joseph J. Shirron; David Rashkin; Thomas E. Giddings; Anni K. Vuorenkoski Dalgleish; Ionut Cardei; Bing Ouyang; Frank M. Caimi; Mihaela Cardei
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Paper Abstract

High bandwidth (10 to 100 Mbps), real-time data networking in the subsea environment using free-space lasers has a potentially high impact as an enabling technology for a variety of future subsea operations in the areas of distributed sensing, real-time wireless data transfer, control of unmanned undersea vehicles, and other submerged assets. However, the development and testing of laser networking equipment in the undersea environment are expensive and time consuming, and there is a clear need for a network simulation framework that will allow researchers to evaluate the performance of alternate optical and electronic configurations under realistic operational and environmental constraints. The overall objective of the work reported in this paper was to develop and validate such a simulation framework, which consists of (1) a time-dependent radiative transfer model to accurately predict the channel impulse characteristics for alternate system designs over a range of geometries and optical properties and (2) digital modulation and demodulation blocks which accurately simulate both laser source and receiver noise characteristics in order to generate time domain bit stream samples that can be digitally demodulated to predict the resulting bit error rate of the simulated link.

Paper Details

Date Published: 25 April 2014
PDF: 15 pages
Opt. Eng. 53(5) 051410 doi: 10.1117/1.OE.53.5.051410
Published in: Optical Engineering Volume 53, Issue 5
Show Author Affiliations
Fraser R. Dalgleish, Harbor Branch Oceanographic Institute (United States)
Joseph J. Shirron, Metron, Inc. (United States)
David Rashkin, Florida Atlantic Univ. (United States)
Thomas E. Giddings, Metron, Inc. (United States)
Anni K. Vuorenkoski Dalgleish, Harbor Branch Oceanographic Institute (United States)
Ionut Cardei, Florida Atlantic Univ. (United States)
Bing Ouyang, Harbor Branch Oceanographic Institute (United States)
Frank M. Caimi, Harbor Branch Oceanographic Institute (United States)
Mihaela Cardei, Florida Atlantic Univ. (United States)

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