Abstract
Transparent optical networks are in the interest of network operators for
many years. To operate such networks efficiently and reliably has been
identified as a difficult task, since there is no access to a strict
performance parameter like the bit error ratio in the optical path. In
particular the signal degradation from the fiber nonlinearity accumulates
during propagation along the optical transmission line and can only be fully
characterized at the final destination.On the other hand recent improvement in receiver technology allows to
introduce complex signal processing at the receive side.In this contribution a concept is described to separate linear and
nonlinear signal distortions, in order to tune the per channel power in
meshed WDM networks. The method furthermore enables the estimation of the
associated achievable spectral efficiency.
© 2009 IEEE
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