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Proceedings Paper

FM-MRR analog audio system
Author(s): J. L. Murphy; G. C. Gilbreath; W. S. Rabinovich; M. M. Sepantaie; P. G. Goetz
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Paper Abstract

In this work, we describe a hybrid free-space infrared communications link that supports audio transmission. The technique combines conventional frequency modulation (FM) techniques with optical amplitude modulation (AM) with a Multiple Quantum Well (MQW) Modulating Retroreflector (MRR) technology. The method has produced a robust, low power system capable of transmitting high quality audio information over a free space infrared link extending to multiple kilometers, depending on the characteristics of the Transmit/Receiver (interrogator) and the sensor/ MRR unit at the data source.

Paper Details

Date Published: 12 September 2005
PDF: 8 pages
Proc. SPIE 5892, Free-Space Laser Communications V, 58921X (12 September 2005); doi: 10.1117/12.639991
Show Author Affiliations
J. L. Murphy, Naval Research Lab. (United States)
G. C. Gilbreath, Naval Research Lab. (United States)
W. S. Rabinovich, Naval Research Lab. (United States)
M. M. Sepantaie, Computational Physics, Inc. (United States)
P. G. Goetz, Naval Research Lab. (United States)


Published in SPIE Proceedings Vol. 5892:
Free-Space Laser Communications V
David G. Voelz; Jennifer C. Ricklin, Editor(s)

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