4×50Gb/s transmission over 4.4 km of multimode OM2 fiber with direct detection using mode group multiplexing

We demonstrate 4×50Gb/s bidirectional transmission (100Gb/s in each direction) over 4.4km of OM2 fiber with direct detection and a selective excitation of 4 mode groups thanks to mode group multiplexers based on Multi-Plane Light Conversion.