DocumentCode :
1300469
Title :
Intersatellite laser crosslinks
Author :
Mulholland, John E. ; Cadogan, Sean Anthony
Author_Institution :
Dept. of Electr. & Comput. Eng., Villanova Univ., PA, USA
Volume :
32
Issue :
3
fYear :
1996
fDate :
7/1/1996 12:00:00 AM
Firstpage :
1011
Lastpage :
1020
Abstract :
Intersatellite laser crosslinks (ISL) provide a method of communication that has significantly increased the data throughput that can be managed over typical RF communication systems, and has significant growth potential. Optical communications offer very wide bandwidths which can be effectively utilized with wavelength division multiplexing techniques. The data rate growth potential is well beyond the few gigabit per second range of RF technology. The use of lasers in transmitting optical data takes advantage of its small wavelength and low beam divergence to send highly directed signals over significant distances with controlled losses in intensity. The high directivity of the laser aids in resistance to jamming communications between satellites, or between satellites and ground stations. Various intersatellite laser optical crosslink system are discussed including the Massachusetts Institute of Technology´s Laser Intersatellite Transmission Experiment (LITE), the McDonnell Douglas Electronic Systems Company Laser Crosslink System, and The Ball Aerospace Optical Intersatellite Link,in order to display the various subsystem and their implementations. Link budget calculations are performed on the most commonly used modulation formats to determine system parameters necessary to close the crosslink. Background is provided on primal system architectures and methods of laser communication, as well as presently implemented systems. The authors provide some insights on where ISL systems have opportunity to increase their data throughput and reduce acquisition time.
Keywords :
data communication; optical communication; optical modulation; optical receivers; optical transmitters; satellite communication; wavelength division multiplexing; Ball Aerospace; Massachusetts Institute of Technology; McDonnell Douglas; RF communication systems; acquisition time; data rate growth potential; directivity; intersatellite laser crosslinks; intersatellite laser optical crosslink system; jamming communications; laser communication; link budget; optical communications; primal system architectures; receiver; satellites; transmitter; wavelength division multiplexing; Artificial satellites; Bandwidth; Communication system control; Laser beams; Optical control; Optical fiber communication; Potential well; Radio frequency; Throughput; Wavelength division multiplexing;
fLanguage :
English
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9251
Type :
jour
DOI :
10.1109/7.532260
Filename :
532260
Link To Document :
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