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Space coherent optical communication systems--An introduction

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1 Author(s)
Chan, V.W.S. ; Lincoln Laboratory, Massachussetts Institute of Technology, Lexington, MA, USA

Critical technology and system issues for space optical heteroydyne communication systems using GaAlAs lasers are discussed. Heterodyne systems offers 10-20 dB better receiver sensitivities and thus smaller telescope sizes for the same laser power than direct detection systems. Based on present state-of-the-art technologies, it is concluded that an efficient optical intersatellite link can be realized with a few years of development.

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Lightwave Technology, Journal of  (Volume:5 ,  Issue: 4 )