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Proceedings Paper

Statistical characterization of fluctuations of a laser beam transmitted through a random air-water interface: new results from a laboratory experiment
Author(s): Arun K. Majumdar; Phillip Land; John Siegenthaler
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Paper Abstract

New results for characterizing laser intensity fluctuation statistics of a laser beam transmitted through a random air-water interface relevant to underwater communications are presented. A laboratory watertank experiment is described to investigate the beam wandering effects of the transmitted beam. Preliminary results from the experiment provide information about histograms of the probability density functions of intensity fluctuations for different wind speeds measured by a CMOS camera for the transmitted beam. Angular displacements of the centroids of the fluctuating laser beam generates the beam wander effects. This research develops a probabilistic model for optical propagation at the random air-water interface for a transmission case under different wind speed conditions. Preliminary results for bit-error-rate (BER) estimates as a function of fade margin for an on-off keying (OOK) optical communication through the air-water interface are presented for a communication system where a random air-water interface is a part of the communication channel.

Paper Details

Date Published: 7 October 2014
PDF: 12 pages
Proc. SPIE 9224, Laser Communication and Propagation through the Atmosphere and Oceans III, 922415 (7 October 2014); doi: 10.1117/12.2064436
Show Author Affiliations
Arun K. Majumdar, Naval Air Warfare Ctr. Weapons Div. (United States)
Phillip Land, Naval Air Warfare Ctr. Weapons Div. (United States)
John Siegenthaler, Naval Air Warfare Ctr. Weapons Div. (United States)


Published in SPIE Proceedings Vol. 9224:
Laser Communication and Propagation through the Atmosphere and Oceans III
Alexander M. J. van Eijk; Christopher C. Davis; Stephen M. Hammel, Editor(s)

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