Abstract
We propose a novel correlation-based blind polarization demultiplexing
technique for coherent optical communication systems. The basic procedure
involves the blind estimation of various channel parameters through correlation
analysis, and resolving ambiguities using pilot symbols. In a 56 Gb/s/polarizaton
multiplexing transmission system employing quadrature phase-shift keying,
for both symbol-rate sampling and double symbol-rate sampling, the proposed
algorithm achieves the same performance as that of the receiver with known
channel parameters and significantly outperforms the constant modulus algorithm.
© 2011 IEEE
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