APPARATUS FOR MITIGATING THE EFFECTS OF POLARIZATION MODE DISPERSION OF A PLURALITY OF OPTICAL SIGNALS

摘要

A PMD mitigation apparatus for mitigating the effects of PMD of a plurality of input optical signals, has a processing unit having a first input for the plurality of input optical signals, a second input and an output; a feedback control unit having an input coupled to the output of the processing unit and an output coupled to the second input of the processing unit. Under the control of a control signal, the processing unit is adapted to act on the polarization of the plurality of input optical signals separately so as to obtain at its output an aggregate having a corresponding plurality of polarized optical signals having associated a maximum fraction of power of the plurality of input optical signals. The feedback control unit is adapted to receive at its input a power portion of the aggregate of the plurality of polarized optical signals, to process the optical power portion so as to generate the control signal to the second input of the processing unit.