Abstract
In this paper, we analyze the performance of polarization-diversity
receivers employing maximum-likelihood sequence estimation (MLSE) to combat
the effects of polarization mode dispersion (PMD) for both the
intensity-modulation direct detection (IMDD) and duobinary modulation
formats at 43 Gb/s. We propose and study several parametric branch metrics,
showing that the use of MLSE receivers based on polarization diversity with
appropriate branch metrics allows to cancel out the high penalty incurred by
standard MLSE receivers in the presence of PMD.
© 2009 IEEE
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