High-Speed DMT Signal and Power-Over-Fiber Simultaneous Transmission Over Weakly-Coupled Multicore Fiber

We experimentally demonstrate the cotransmission of 50 and 60 GBaud 64-level quadrature amplitude modulation (QAM) high-speed optical discrete multi-tone (DMT) signal corresponding to the data rate of 117 Gbit/s and 140 Gbit/s, and 60-W power over fiber (PoF) over 1-km 7-core single-mode weakly coupled multi-core fiber (WC-MCF) for the first time. In this demonstration, the optical power transmission efficiency (OPTE) of energy light is up to 53.9%, and the collected optical power at the remote unit (RU) can be up tp 32.4 W. Meanwhile, the bit error rates (BERs) of 50 GBaud and 60 GBaud 64-QAM DMT signal in the intensity modulation direct detection (IM-DD) system at RU are all lower than the soft decision forward error correction (SD-FEC) threshold of 2E-2. In addition, the signal-tonoise ratio (SNR) of 50 GBaud is more than 22 dB within the limit established in the 3<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">rd</sup> Generation Partnership Project (3GPP) defined requirement.