Title :
Deep-space optical terminals
Author :
Hemmati, H. ; Farr, W.H. ; Biswas, A. ; Birnbaum, K.M. ; Roberts, W.T. ; Quirk, K. ; Townes, S.
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
Abstract :
We report on engineering trades that led to the conceptual design of a laser communications terminal for a spacecraft orbiting Mars. The flight terminal, the ground receiver and the ground transmitter subsystems are described. The designed system is capable of 0.25 Gb/s downlink data-rate, 0.3 Mb/s uplink data-rate, and ranging with a 30 cm precision when the distance to the flight terminal is the Earth-Mars close range (0.42 AU).
Keywords :
optical fibre communication; optical receivers; optical transmitters; space communication links; Mars; deep-space optical terminal; flight terminal; ground receiver; ground transmitter subsystem; laser communication terminal; spacecraft; Assembly; Downlink; Laser beams; Optical receivers; Optical sensors; Optical transmitters; Photonics; Free space optical communications; PPM; coding; large diameter telescope; laser communications; lasercom; modulation;
Conference_Titel :
Space Optical Systems and Applications (ICSOS), 2011 International Conference on
Conference_Location :
Santa Monica, CA
Print_ISBN :
978-1-4244-9686-0
DOI :
10.1109/ICSOS.2011.5783719
