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Proceedings Paper

Measurements On A 2 Km Broadband Atmospheric Optical Communications Link For Video And Data
Author(s): P. S. Venkatesan; R. Natarajan; C. G. Forbes; R. H. Brandwein; E. McSorley; R. Lamerdin; R. Dell
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Paper Abstract

This paper reports on observed preliminary transmission performance of frequency-division multiplexed NTSC video and DS1 channels modulated on to an optical carrier and transmitted over a two-kilometer atmospheric path in New Jersey, USA, with emphasis on measurements made during the fall of 1987. At a distance of two-km, the received laser beam footprint was set at 8 feet in diameter to accommodate temperature related beam wander. The received signal was processed to retrieve the video and data signals. Transmission path fading was monitored using a tone signal over an adjacent parallel path. DS1 bit-error ratio and video signal parameters were monitored according to established standards. Link deployment issues, optical power budgets and preliminary performance results are reported. The Conditions under which system failures were observed are described.

Paper Details

Date Published: 2 May 1988
PDF: 4 pages
Proc. SPIE 0885, Free-Space Laser Communication Technologies, (2 May 1988); doi: 10.1117/12.976566
Show Author Affiliations
P. S. Venkatesan, Bell Communications Research (United States)
R. Natarajan, Bell Communications Research (United States)
C. G. Forbes, Bell Communications Research (United States)
R. H. Brandwein, Bell Communications Research (United States)
E. McSorley, Bell Communications Research (United States)
R. Lamerdin, Bell Communications Research (United States)
R. Dell, Bell Communications Research (United States)


Published in SPIE Proceedings Vol. 0885:
Free-Space Laser Communication Technologies
David L. Begley; Gerhard A. Koepf, Editor(s)

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