Abstract
In this paper, we experimentally demonstrate a single-band self-coherent
polarization-multiplexed optical orthogonal frequency-division multiplex
system with a raw data rate of 120 Gbit/s. The transmitter uses a novel RF
structure that eliminates the need for RF mixers and optical filters. The
receiver uses a novel architecture where the optical carrier is filtered and
amplified for self-coherent detection. The receiver is polarization diverse
and allows for the usual frequency guard band between the carrier and the
sideband to be reduced in width, thus increasing spectral efficiency. Using
two commercial 20 GS/s arbitrary-waveform generators to generate a single
information-carrying band per polarization, we achieve a raw data rate of
120 Gbit/s over 500 km of standard single-mode fiber.
© 2010 IEEE
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