ONBOARD SENDING DEVICE OF INFORMATION TRANSFER LASER SYSTEM Russian patent published in 2009 - IPC H01S4/00 

FIELD: physics; optics.

SUBSTANCE: invention concerns the laser technique and can be used in onboard send-receive terminals of information transfer laser systems of space and flying machines. The onboard sending device of information transfer laser system contains a laser-transmitter, a beam-forming optical system and an optical aerial of the information channel, consistently located on one optical axis and connected optically; a laser beacon, a half-transmitting mirror and the beacon channel optical aerial, consistently located on a parallel optical axis and optically connected among themselves; and also a search and tracking detector and a system of prompting of optical aerials. Thereat the optical input terminal of the search and tracking detector is connected with the optical aerial of the beacon channel through the half-transmitting mirror; the exit of the search and tracking detector is connected with an electric input terminal of system of prompting of optical aerials, and exits of system of prompting of optical aerials are connected with operating input terminals of optical aerials of an information channel and the beacon channel. Thus the beam splitter, the operated spatial filter, the light-receiving element, the amplifier-converter and the operated beam-forming optical system are in addition entered; thus the beam splitter is mounted on an optical axis between the half-transmitting mirror and the search and tracking detector, with its help the input terminal of the operated spatial filter is optically connected through the half-transmitting mirror with the optical aerial of the beacon channel. The exit of the operated spatial filter is optically connected with a light-receiving element input terminal, the light-receiving element exit through the amplifier-converter is linked to an operating input terminal of the beam-forming optical system, and the operating input terminal of the spatial filter is connected with an exit of the search and tracking detector.

EFFECT: improvement of communication quality in the presence of errors of prompting of optical aerials in the conditions of changing range of communication.

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