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Proceedings Paper

Hybrid free-space optical and radio frequency switching
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Paper Abstract

We describe characterization of a hybrid Free-Space Optical (FSO) and Radio Frequency (RF) link for efficient switching between the two links. The monitoring and switching are controlled by a program that checks the FSO connection health using echo packets. The switching program was tested using a fiber optic link that can simulate atmospheric attenuation and scintillation effects by using an optical modulator. The sensitivity to connection quality degradation and momentary connection outages can be optimized for a given system. Connection quality dependent switching rather than continuous operation of both FSO and RF links is desired in situations where RF use is to be minimized, while maintaining high reliability.

Paper Details

Date Published: 19 August 2008
PDF: 9 pages
Proc. SPIE 7091, Free-Space Laser Communications VIII, 70910X (19 August 2008); doi: 10.1117/12.803633
Show Author Affiliations
David S. Kim, U.S. Naval Research Lab. (United States)
G. Charmaine Gilbreath, U.S. Naval Research Lab. (United States)
Jonathan Doffoh, U.S. Naval Research Lab. (United States)
Carlos O. Font-Jimenez, U.S. Naval Research Lab. (United States)
Michele Suite, U.S. Naval Research Lab. (United States)

Published in SPIE Proceedings Vol. 7091:
Free-Space Laser Communications VIII
Arun K. Majumdar; Christopher C. Davis, Editor(s)

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