IM-DD MDM-WDM transmission over 120-km weakly-coupled FMF enabled by wavelength interleaving

Wavelength-interleaved (WI) scheme is proposed to mitigate modal crosstalk during weakly-coupled few-mode fiber (FMF) transmission, based on which 2×3×10-Gb/s IM-DD MDM-WDM transmission over 120-km 2-mode FMF without MIMO processing has been experimentally demonstrated.