Anordnung und Verfahren zur Messung und zur Kompensation der Polarisationsmodendispersion eines optischen Signals

摘要

The arrangement has a polarization controller to which the optical signal is fed and that outputs 2 orthogonally polarized signals with a transition time difference that are fed by a divider to 2 optical branches with optical receivers for conversion into electrical output signals. An adjustable delay element is arranged before one of the optical receivers. A regulator after both receivers has a unit for evaluating the transition time difference. The arrangement has a polarization controller (PS) to which the optical signal (S) is fed and that outputs two orthogonally polarized signals with a transition time difference that are fed by a polarization beam divider to two optical branches with optical receivers (E1,2) for conversion into electrical output signals. An adjustable delay element (W) is arranged before one of the optical receivers. A regulator (KKM) after both receivers has a unit for evaluating the transition time difference. AN Independent claim is also included for the following: a method of measuring or compensating for transition time differences of two orthogonally polarized optical signals.