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Proceedings Paper

Fiber-optic communication links suitable for on-board use in modern aircraft
Author(s): Hung Duc Nguyen; Duc Huy Ngo; Mohammed Atiquzzaman; James Sluss; Filip Slaveski; Mohammad F. Alam
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Paper Abstract

The role of the Advanced Air Transportation Technologies program undertaken at the NASA Glenn Research Centers has been focused mainly on the improvement of air transportation safety, with particular emphasis on air transportation communication systems in on-board aircraft. The conventional solutions for digital optical communications systems specifically designed for local/metro area networks are, unfortunately, not capable of transporting the microwave and millimeter RF signals used in avionics systems. Optical networks capable of transporting RF signals are substantially different from the standard digital optical communications systems. The objective of this paper is to identify a number of different communication link architectures for RF/fiber optic transmission using a single backbone fiber for carrying VHF and UHF RF signals in the aircraft. To support these architectures, two approaches derived from both hybrid RF-optical and all-optical processing methodologies are discussed with single and multiple antennas for explicitly transporting VHF and UHF signals, while the relative merits and demerits of each architecture are also addressed. Furthermore, the experimental results of wavelength division multiplexing (WDM) link architecture from our test-bed platform, configured for aircraft environment to support simultaneous transmission of multiple RF signals over a single optical fiber, exhibit no appreciable signal degradation at wavelengths of both 1330 and 1550 nm, respectively. Our measurements of signal to noise ratio carried out for the transmission of FM and AM analog modulated signals at these wavelengths indicate that WDM is a fiber optic technology which is potentially suitable for avionics applications.

Paper Details

Date Published: 8 September 2004
PDF: 10 pages
Proc. SPIE 5413, Laser Systems Technology II, (8 September 2004); doi: 10.1117/12.541412
Show Author Affiliations
Hung Duc Nguyen, NASA Glenn Research Ctr. (United States)
Duc Huy Ngo, NASA Glenn Research Ctr. (United States)
Mohammed Atiquzzaman, Univ. of Oklahoma (United States)
James Sluss, Univ. of Oklahoma (United States)
Filip Slaveski, Univ. of Oklahoma (United States)
Mohammad F. Alam, Agere Systems (United States)

Published in SPIE Proceedings Vol. 5413:
Laser Systems Technology II
William E. Thompson; Richard L. Brunson, Editor(s)

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