S. Sarmiento, J. M. Delgado Mendinueta, J. A. Altabás, S. Spadaro, S. Shinada, H. Furukawa, J. J. Vegas Olmos, J. A. Lázaro, N. Wada, “Split-enabled 350-630 Gb/s Optical Interconnect with Direct Detection NOMA-CAP and 7-Core Multi-Core Fiber”, to appear in Optics Communications, 2020.