Abstract
We demonstrate one of the first experiments of optical transmission based
on mode-division multiplexing over a few-mode optical fiber. The mode
multiplexer and demultiplexer are based on a programmable liquid crystal on
silicon panel. Using this system, we transmit two 100 Gb/s polarization
division multiplexed quaternary phase-shift keying data streams modulated on
two different modes of the prototype few-mode fiber. At the receiver, a set
of optical coherent detectors with DSP including multiple-input
multiple-output algorithms recover the signal and permit to mitigate the
crosstalk stemming from imperfect mode conversion.
© 2011 IEEE
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