Mode-unbundled ROADM for MDM networks: Characterization of Uni- and Bi-directional mode assignment

A mode-unbundled ROADM, composed of fiber-based mode-mux/demux and a multi-port MEMS switch, is proposed for MDM networks. The experimental demonstration was performed in single- and two-node configurations, for uni- and bi-directionally mode assigned QPSK and 16-QAM signals, without MIMO DSP.

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