We demonstrate the first MDM scheme using OAM states over 1.1-km of fiber. This is enabled by a SLM-based Mux/Demux setup, and a fiber designed to propagate multiple OAM modes over km lengths. We confirm low crosstalk (<−14.8dB) and multipath interference (<−19.7dB) of this scheme by transmitting 400Gb/s QPSK data at 1550nm without MIMO processing.

© 2012 Optical Society of America

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