As part of this initiative, the Ministry commissioned six organizations: KDDI Research, Inc. (KDDI Research; President and CEO: Hajime Nakamura), Tohoku University (Tohoku University; President: Hideo Ohno), Sumitomo Electric Industries, Ltd. (Sumitomo Electric; President: Osamu. Tokyo, Japan, March 21, 2024 - NEC Corporation (NEC; TSE: 6701) and NTT Corporation (NTT) today announced that they have successfully conducted a first-of-its-kind transoceanic-class 7,280km transmission experiment using a coupled 12-core multicore fiber (*1), which consists of 12 optical signal. Tokyo, Japan, March 21, 2024 – NEC Corporation (NEC; TSE: 6701) and NTT Corporation (NTT) today announced that they have successfully conducted a first-of-its-kind transoceanic-class 7,280km transmission experiment using a coupled 12-core multicore fiber (*1), which consists of 12 optical signal. - Expectation for Future Long-Distance High-Capacity Optical Communication Infrastructure - Achieved using a newly developed standard 19-core optical fiber, equivalent to 19 standard fibers, low loss across multiple wavelength bands, and the development of an optical amplification relay function. On March 21, NEC and NTT announced that they have successfully conducted the world's first transoceanic long-distance transmission experiment over a distance of 7280 km using a 12-core coupled multicore fiber with 12 optical signal transmission paths in a standard outer diameter (0. 125 mm) optical. Japan's Ministry of Internal Affairs and Communications formulated the technical research and development theme II “Multicore high-capacity optical transmission system technology” to support development of innovative optical network technology with a novel social infrastructure (JPMI00316) over FY. Japan's NEC and NTT have announced the successful completion of a transoceanic-class 7,280 km transmission experiment utilising a coupled 12-core multicore fiber, comprised of 12 optical signal transmission paths within a standard outer diameter optical fiber (0.