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Proceedings Paper

Stray light modeling and performance of the 15cm deep space optical communications transceiver (DSOCT)
Author(s): W. Thomas Roberts
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Paper Abstract

The Deep Space Optical Communications Transceiver (DSOCT) was developed as a small demonstrator testbed for evaluating optical components and systems for a deep space optical communications system. The need for a low-scatter optical system derives from the requirement for the transceiver to operate to within 2 degree solar elongation angles. An experiment in which the terminal was set up on Earth and pointed near the Sun demonstrated the terminal's ability to achieve Earth-background limited operation somewhere between 2 and 5 degrees of the edge of the solar disk, depending on the Earth-radiance background assumed as the lower bound for background light and the sky radiance conditions during the experiment. Stray light analysis matches the measured scatter to within a factor of 3, and identifies the system's secondary mirror as the main source of concern.

Paper Details

Date Published: 26 February 2010
PDF: 10 pages
Proc. SPIE 7587, Free-Space Laser Communication Technologies XXII, 75870V (26 February 2010); doi: 10.1117/12.840784
Show Author Affiliations
W. Thomas Roberts, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 7587:
Free-Space Laser Communication Technologies XXII
Hamid Hemmati, Editor(s)

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