SENDE/EMPFANGSTEIL FUER EIN BIDIREKTIONALES KOHAERENT-OPTISCHES UEBERTRAGUNGSSYSTEM

摘要

A transmitting/receiving section (11) for a bidirectional coherent-optical communication system provided with an optical waveguide link (12) is provided with a laser (16) for sending out a signal wave and with a modulator and with a coherent receiver (13) for heterodyne reception and with a demodulator. In order to achieve that such a transmitting/receiving section (11), having the same performance features, manages with a lower expenditure of components and can be constructed more compactly and produced more inexpensively, it is provided that the laser (26) is used at the same time for sending out an oscillator radiation for the heterodyne receiver (13) of the same transmitting/receiving section (11) and/or at the same time for optical amplification of the signal wave arriving from the remote transmitting/receiving section (11) via the optical waveguide link (12). ……