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Polarization demultiplexing by Constant Rotating Symbol Training Sequence in coherent optical PDM-QPSK system

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Abstract

The paper presents a training sequence and an algorithm used for polarization demultiplexing in polarization division multiplexing coherent optical transmission system. The method can perform polarization demultiplex correctly and receiver is not required to synchronize with training sequence. Frequency offset can also be estimated with the training sequence.

© 2010 Optical Society of America

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