Device and method for transmitting optical data signals

摘要

Disclosed are a device (1) and a method for transmitting an optical data signal over an optical transmission channel (17), comprising a differential phase shift keying unit (5) for differential phase shift keying of at least one serial data stream (DS1, DS2) to generate a differential phase shift keying coded data stream; an amplitude shift keying unit (9) for amplitude coding of at least two further serial data streams that can be selectively activated to generate an amplitude shift keying coded data stream; and a modulation unit (16) for generating an optical data signal in accordance with a control signal that is formed from the generated differential phase shift keying coded data stream and from the generated amplitude shift keying coded data stream.