Abstract
In this paper, we present a method for combined fiber parameter estimation
from digital filter coefficients of a polarization diverse coherent
receiver. All deterministic linear optical channel parameters like residual
chromatic dispersion (CD), polarization-mode dispersion (PMD), and
polarization-dependent loss (PDL) are continuously monitored by analysis of
the filter impulse response of the adaptive equalizer. After deriving the
according equations from the theoretical linear fiber channel model, we
demonstrate robust estimation for a joint combination of all
impairments.
© 2009 IEEE
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