FIELD: physics.
SUBSTANCE: receiving laser devices are placed at a distance, sideways relative the viewed axis of propagation of the radiation beam of a transmitting laser device; a receiving device receives radiation of the transmitting laser device scattered by the atmosphere; receiving antennae of the receiving laser devices are aligned in the direction of the axis of the beam of the transmitting laser device, and information transmitted by the transmitting laser device is selected by each of the receiving laser devices based on the change in the amplitude value of the leading and trailing edges of the output pulse of the photodetector.
EFFECT: high stability of transmitting information to several subscribers by duplicating the main optical channel with additional channels.
3 dwg
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