Optical transmission-reception unit with controllable transmission direction

摘要

The assembly i.e. free space laser optical communication terminal (100), has an optical laser signal transmission system (10) for transmitting optical laser signals along a transmission direction. An optical coupling system (50) directs a part of the signals towards a point of a photodetector matrix (21), where the point is situated outside a usage zone (ZU) of the photodetector matrix. A transmission controller (60) determines the transmission direction from coordinates of the point or points of the photodetector matrix to which the part of the signals is detected.