Projections of the growth of earth-sensing systems for the latter half of the 1980's show a data transmission requirement of 300 Mbps and above. Mission constraints and objectives lead to the conclusion that the most efficient technique to return the data from the sensing satellite to a ground station is through a geosynchronous data relay satellite. Of the two links that are involved (sensing satellite to relay satellite and relay satellite to ground), a laser system is most attractive for the space-to-space link. The development of CO2 laser systems for space-to-space applications is discussed with the completion of a 300 Mpbs data relay receiver and its modification into a transceiver. The technology and state-of-the-art of such systems are described in detail. (Author)


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    Title :

    Spaceborne CO2 Laser Communications Systems


    Contributors:
    J. H. Mcelroy (author) / N. Mcavoy (author) / E. H. Johnson (author) / F. E. Goodwin (author) / B. J. Peyton (author)

    Publication date :

    1975


    Size :

    54 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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