Deep-space optical terminals (DOT)

H. Hemmati; W. H. Farr; A. Biswas; K. M. Birnbaum; W. T. Roberts; K. Quirk; S. Townes

doi:10.1117/12.878930

1 March 2011 Deep-space optical terminals (DOT)

H. Hemmati, W. H. Farr, A. Biswas, K. M. Birnbaum, W. T. Roberts, K. Quirk, S. Townes

Proceedings Volume 7923, Free-Space Laser Communication Technologies XXIII; 79230C (2011) https://doi.org/10.1117/12.878930
Event: SPIE LASE, 2011, San Francisco, California, United States

Abstract

A conceptual design study titled Deep-space Optical Terminals was recently completed for an optical communication technology demonstration from Mars in the 2018 time frame. We report on engineering trades for the entire system, and for individual subsystems including the flight terminal, the ground receiver and the ground transmitter. A point design is described to meet the requirement for greater than 0.25 Gb/s downlink from the nearest distance to Mars of 0.42 AU with a maximum mass and power allocation of 40 kg and 110 W. Furthermore, the concept design addresses link closure at the farthest Mars range of 2.7 AU. Maximum uplink data-rate of 0.3 Mb/s and ranging with 30 cm precision are also addressed.

Citation Download Citation

H. Hemmati, W. H. Farr, A. Biswas, K. M. Birnbaum, W. T. Roberts, K. Quirk, and S. Townes "Deep-space optical terminals (DOT)", Proc. SPIE 7923, Free-Space Laser Communication Technologies XXIII, 79230C (1 March 2011); https://doi.org/10.1117/12.878930

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