Physics – Optics
Scientific paper
May 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984slat.reptu....b&link_type=abstract
In ESA Space Laser Appl. and Technol. (SPLAT) 7 p (SEE N84-34715 24-36)
Physics
Optics
Data Links, Diodes, Laser Applications, Optical Communication, Spacecraft Communication, Carbon Dioxide Lasers, Cassegrain Optics, Pointing Control Systems, Satellite Networks, Semiconductor Lasers
Scientific paper
An intersatellite optical data link based on laser diodes with silicium avalanche photodiodes and a CO2 laser is described. The optical system is based on a 250 mm Cassegrain telescope with telecommunication and pointing/acquisition subassemblies for the low orbit satellite; and a 500 mm Cassegrain telescope for the geosynchronous satellite. Performance analyses indicate that for the high bit rates demanded (400 Mbits/sec) laser diodes are a feasible alternative to classical data links, if pointing accuracy of 1 micro rad can be achieved, and if a semiconductor source with 50 mW power and the required lifetime and reliability is found.
Boutemy J. C.
Cousin Bernard
Frecon L.
Sein Emmanuel
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