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MIMO-Based Crosstalk Suppression in Spatially Multiplexed 3 ,\times , 56-Gb/s PDM-QPSK Signals for Strongly Coupled Three-Core Fiber

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8 Author(s)
R. Ryf ; Bell Labs., Alcatel-Lucent, Holmdel, NJ, USA ; R. -J. Essiambre ; S. Randel ; A. H. Gnauck
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We experimentally demonstrate simultaneous transmission of three spatially multiplexed 56-Gb/s polarization-division-multiplex quadrature phase-shift keying (PDM-QPSK) channels over 24 km of a strongly coupled three-core fiber. The resulting crosstalk of about -4 dB is almost completely removed by coherent multiple-input multiple-output (MIMO) processing.

Published in:

IEEE Photonics Technology Letters  (Volume:23 ,  Issue: 20 )