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Polarization-multiplexed DQPSK signals were implemented with high-speed and precise optical polarization compensation. Electronic chromatic dispersion compensation employing maximum-likelihood sequence estimation (MLSE) receivers have been previously proposed to combat CD and PMD in the presence of ASE noise. In this paper we analyze the performance of a novel MLSE digital equalizer technology which...
Polarization-multiplexed DQPSK signals were implemented with high-speed and precise optical polarization compensation. In this paper we analyze the performance of MLSE combined with FFE receivers in reducing the CD and PMD. We investigate equalization over buried fibers having CD up to 3200 ps/nm, PMD up to 45 ps. This equals a distance beyond 200 km and thus increases the uncompensated transmission...
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