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Proceedings Paper

Using a low-noise interferometric fiber optic gyro in a pointing, acquisition, and tracking system
Author(s): John Kaufmann; Farhad Hakimi; Don Boroson
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Paper Abstract

Heritage pointing, acquisition, and tracking (PAT) systems have relied on optical tracking with a cooperative remote terminal to stabilize the line-of-sight of optical communications links. A hybrid approach, using new interferometric fiberoptic gyro (IFOG) technology to sense and correct local angular disturbances, blended with optical tracking, is shown to yield two significant advantages over traditional all-optical tracking: (1) line-of-sight stabilization over a very wide disturbance frequency range, down to extremely low frequencies (<<1 Hz), without the need for any optical signal power or cooperation from the remote terminal, and (2) a significant reduction in signal power required for the optical tracker. This paper will present fundamental performance analyses of a hybrid IFOG/optical tracking system and will derive simple design rules that the system designer can use to architect an optimal hybrid IFOG/optical PAT system. In addition, flow-down benefits that can simplify PAT system hardware will be discussed.

Paper Details

Date Published: 19 March 2013
PDF: 14 pages
Proc. SPIE 8610, Free-Space Laser Communication and Atmospheric Propagation XXV, 86100A (19 March 2013); doi: 10.1117/12.2010982
Show Author Affiliations
John Kaufmann, MIT Lincoln Lab. (United States)
Farhad Hakimi, MIT Lincoln Lab. (United States)
Don Boroson, MIT Lincoln Lab. (United States)

Published in SPIE Proceedings Vol. 8610:
Free-Space Laser Communication and Atmospheric Propagation XXV
Hamid Hemmati; Don M. Boroson, Editor(s)

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