Title :
Coherent optical intersatellite crosslink systems
Author :
Kaufmann, John E. ; Chan, Vincent W S
Author_Institution :
MIT Lincoln Lab., Lexington, MA, USA
Abstract :
Key system and technology issues for heterodyne laser intersatellite communication systems are reviewed, including telescope/aperture, laser transmitter, and heterodyne receiver technology; spatial acquisition and tracking; optical/mechanical/thermal analysis design; and modulation/demodulation coding. It is concluded that heterodyne technology with semiconductor lasers has evolved to the point where it is now feasible to implement heterodyne systems for approximately 100 Mb/s with a single-laser transmitter of modest power (30 mW) and with small aperture (20 cm). It is suggested that technology advances, particularly in the areas of higher power laser sources, will extend system capabilities beyond 1 Gb/s in the future.<>
Keywords :
encoding; laser beam applications; military systems; optical communication equipment; optical links; satellite relay systems; 100 Mbit/s; 30 mW; heterodyne laser intersatellite communication systems; heterodyne receiver technology; laser transmitter; modulation/demodulation coding; optical/mechanical/thermal analysis design; spatial acquisition; telescope/aperture; tracking; Apertures; Laser modes; Optical mixing; Optical modulation; Optical receivers; Optical transmitters; Power lasers; Semiconductor lasers; Space technology; Telescopes;
Conference_Titel :
Military Communications Conference, 1988. MILCOM 88, Conference record. 21st Century Military Communications - What's Possible? 1988 IEEE
Conference_Location :
San Diego, CA, USA
DOI :
10.1109/MILCOM.1988.13443
