Prototype of DSP-Free IM/DD MDM Transceiver Based on Multiple-Ring-Core FMF for Datacenter Interconnection

We demonstrate the first prototype system of real-time IM/DD MDM transmission with 4 LP modes over 10-km multiple-ring-core FMF. Scalability of the proposed system is discussed and new transmission impairment of Intra-LP-mode dispersion is evaluated.