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Proceedings Paper

A Beacon Tracker And Point Ahead System For Optical Communications
Author(s): David Greenwald; Chris McLaughlin
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Paper Abstract

This paper describes the design and fabrication of a self contained satellite beacon tracking system for optical communications. This device is installed on a tracking mount and uses high bandwidth steering mirrors to effectively cancel atmospheric turbulence and mount jitter. The steering mirrors are integrated with a 20-cm, unobscured telescope used for receiving the beacon and for transmitting a modulated communications uplink. Satellite range and velocity calculated for its ephemeris are used to offset the transmitted beam from the beacon by as much as 50 microradians to compensate for optical transit time.

Paper Details

Date Published: 26 September 1989
PDF: 9 pages
Proc. SPIE 1111, Acquisition, Tracking, and Pointing III, (26 September 1989); doi: 10.1117/12.977987
Show Author Affiliations
David Greenwald, Contraves Goerz Corporation (United States)
Chris McLaughlin, Contraves Goerz Corporation (United States)


Published in SPIE Proceedings Vol. 1111:
Acquisition, Tracking, and Pointing III
Sankaran Gowrinathan, Editor(s)

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