Apparatus and method for reducing signal fading due to atmospheric turbulence
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United States of America Patent
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Nov 22, 2016
Grant Date -
Feb 25, 2016
app pub date -
Aug 20, 2014
filing date -
Aug 20, 2014
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Abstract
A method and system for reducing optical signal fading in an optical communication system include: dynamically obtaining turbulence-induced divergence and deviations of pointing direction for the atmosphere where an optical signal to be transmitted through; generating a single-transverse-mode laser beam of a predetermined diameter as the optical signal; dynamically varying the diameter of the laser beam to match the obtained turbulence-induced divergence of the atmosphere with a backtrack pointing direction; and transmitting the laser beam with varying diameter to a remote transceiver, as the optical signal.
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