MIMO-based Crosstalk Suppression in Spatially Multiplexed 56-Gb/s PDM-QPSK Signals for Strongly-Coupled 3-Core Fiber
15 October 2011
We experimentally demonstrate simultaneous transmission of 3 spatially multiplexed 56-Gb/s PDM-QPSK channels over 24 km of a high-crosstalk 3-core fiber. This is achieved by cancelation of ~ -4-dB crosstalk using MIMO processing.