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Proceedings Paper

Functional testing of the Laser Intersatellite Transmission Experiment (LITE) engineering model
Author(s): William C. Goltsos; Don M. Boroson; Catherine Ellen DeVoe
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Paper Abstract

Acquisition and tracking performance of a space-based optical communications system engineering model has been quantitatively measured using a dedicated optical test set. The test set includes a beacon with simulated angle jitter for tracking, a heterodyne optical receiver, and an accurate, calibrated line- of-sight monitor. The system has the capability of measuring each component of the pointing and tracking budget with angles down to approximately 1% of a diffraction-limited bandwidth. Acquisition and handover-to-tracking probabilities exceeding 99.9% are achieved at power levels 9-dB below expected on-orbit levels, and tracking rejection with jitter amplitudes comparable to expected spacecraft levels has been measured optically at -70 dB. Point- ahead angle repeatability over a POM 15 bandwidth range is found to be better than 0.01 beamwidths.

Paper Details

Date Published: 16 August 1994
PDF: 10 pages
Proc. SPIE 2123, Free-Space Laser Communication Technologies VI, (16 August 1994); doi: 10.1117/12.184686
Show Author Affiliations
William C. Goltsos, MIT Lincoln Lab. (United States)
Don M. Boroson, MIT Lincoln Lab. (United States)
Catherine Ellen DeVoe, MIT Lincoln Lab. (United States)


Published in SPIE Proceedings Vol. 2123:
Free-Space Laser Communication Technologies VI
G. Stephen Mecherle, Editor(s)

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