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. 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. In this press release, we announce the success of our transoceanic long-distance transmission experiment over 7,280 km using 12-core optical fiber. We spoke with the researchers about the details on what purpose and meaning this success has and what technologies were used to achieve this success. 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. NEC Corporation (NEC; TSE: 6701) and NTT Corporation (NTT) announced that they have successfully conducted a first-of-its-kind transoceanic-class 7,280km transmission experiment using a coupled 12-core multicore fiber, which consists of 12 optical signal transmission paths in a standard outer. 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. 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. The companies successfully tested a coupled 12-core multicore fiber over a distance of 7,280km in an experiment that simulated the conditions of submarine cables on the ocean floor. Japan's NTT and NEC have announced that they have conducted a transmission experiment using a new fiber optic.