VORRICHTUNG UND VERFAHREN ZUR VERARBEITUNG EINES DIGITALEN BIT-ZU-BIT POLARISATIONSVERSCHACHTELTEN SIGNALS IN EINEM OPTISCHEN ÜBERTRAGUNGSYSTEM

摘要

A device for processing a digital signal (A) of an optical transmission system is described. The device comprises: a polarization beam splitter (11) for receiving the signal (A), a phase shifter (12) for shifting the phase of the signal (B2) at the orthogonal output of the polarization beam splitter (11), and means for combining the signal (B1) at the parallel output of the polarization beam splitter (11) and the shifted signal (B2').