Abstract
We present a new type of crosstalk in a polarization-multiplexed ultrahigh-speed
transmission caused by polarization-mode dispersion (PMD) in the presence
of polarization-dependent loss (PDL). When PMD and PDL are both present, the
orthogonality between two principal states of polarization (PSP) is reduced.
As a result, crosstalk inevitably occurs between two polarizations and prevents
the two channels from being separated completely during polarization demultiplexing.
The system impact of these effects in a polarization-multiplexed terabit/s
transmission is also demonstrated experimentally.
© 2011 IEEE
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