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Proceedings Paper

Mitigation of atmospheric effects on terrestrial free-space optical communication systems
Author(s): G. Stephen Mecherle
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Paper Abstract

The effects of the atmosphere on laser beam propagation are briefly reviewed, with the emphasis on scintillation and fog attenuation. It is shown that even saturated scintillation can be rendered harmless by the combination of receiver aperture averaging and multiple spatially diverse transmitters. Fog attenuation is shown to be the design driver for high availability links, and design techniques to increase the clear air link margin can improve link availability. Based on measured data from fSONA FSO hardware, it is shown that approximately four 9s of availability can be achieved in the most challenging North American cities at 350m range. With some design improvements (such as active pointing), FSO systems can potentially achieve four 9s availability at 1 km range.

Paper Details

Date Published: 16 June 2004
PDF: 17 pages
Proc. SPIE 5338, Free-Space Laser Communication Technologies XVI, (16 June 2004); doi: 10.1117/12.537593
Show Author Affiliations
G. Stephen Mecherle, fSONA Communications Corporation (Canada)


Published in SPIE Proceedings Vol. 5338:
Free-Space Laser Communication Technologies XVI
Steve Mecherle; Cynthia Y. Young; John S. Stryjewski, Editor(s)

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