Patent ID: 8958702
Filing Date: 2015-02-17
Classification: H04B

Abstract:
1. A method for detecting polarization scrambling of a polarization multiplexed optical signal comprising: receiving a polarization multiplexed optical signal over an optical network and including a scrambled polarization orientation, the polarization orientation scrambled according to a scrambling frequency, the polarization multiplexed optical signal comprising information modulated on a plurality of polarization components of the optical signal; receiving, over the optical network, a polarization signal indicating the polarization scrambling of the received polarization multiplexed optical signal, wherein the polarization signal includes phase information indicating the polarization scrambling of the polarization multiplexed optical signal, the phase information based on propagation times associated with the polarization signal and the polarization multiplexed optical signal; and descrambling the polarization multiplexed optical signal according to the polarization scrambling as indicated by the polarization signal.