Architectural design of a ground-based deep-space optical reception antenna.

Details Architectural design of a ground-based deep-space optical reception antenna. Architectural design of a ground-based deep-space optical reception antenna.

Apr 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991opten..30..446k&link_type=abstract

Opt. Eng., Vol. 30, No. 4, p. 446 - 451

Astronomy and Astrophysics

Astronomy

1

Scientific paper

An architectural design of a ground-based antenna for receiving optical communications from deep space is presented. A channel capacity of 100 kbits/s from Saturn or 5 Mbits/s from Mars requires a 30 cm-diameter transmitter and a 10 m-diameter reception antenna. The f/0.5 primary mirror will be hexagonally segmented and will have a surface roughness tolerance of 2 μm rms to effect a substantial savings relative to the cost of an astronomical optical imaging telescope of the same diameter. A typical Saturn-to-Earth data link can reduce its source power requirement from 8.8 W to 2 W of laser output by employing a Fraunhofer filter instead of a conventional multilayer dielectric filter.

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