Abstract
In this paper, we experimentally investigate the tolerance of 111-Gb/s
polarization multiplexed-return to zero-differential quadrature phase-shift keying
(POLMUX-RZ-DQPSK) to the different nonlinear transmission impairments in different links
structures. We analyze the effect of dispersion maps for four different fiber types and
show that with sufficiently large per-span under-compensation in the double periodic
dispersion map, a dispersion managed (DM) link can nearly have a similar performance to
a non-DM link. Furthermore, we confirm that the super large effective area fiber family
can provide around 3 dB advantage in the tolerance to nonlinear effects compared to
standard single-mode fiber. Finally, we demonstrate that interleaving the two
polarization tributaries of the 111-Gb/s POLMUX-RZ-DQPSK signal provides only a
negligible advantage in terms of tolerance to nonlinear effects.
© 2011 IEEE
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