NEC and NTT successfully conduct first-of-its-kind long-distance transmission experiment over 7,000km using 12-core optical fiber
TOKYO, Mar 22, 2024 - (JCN Newswire) - NEC Corporation (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 transmission paths in a standard outer diameter optical fiber (0.125 mm).
- TOKYO, Mar 22, 2024 - (JCN Newswire) - NEC Corporation (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 transmission paths in a standard outer diameter optical fiber (0.125 mm).
- In order to meet the strong communication demand, there is a growing need to increase transmission capacity per optical submarine cable system in addition to increasing the number of optical submarine cables.Existing optical submarine cables use single-core fiber, which has a single optical transmission path called a core within a single fiber.
- NEC is currently engaged in a project to install a long-haul optical submarine cable system using two-core multicore fiber with two optical transmission paths.
- (1) Coupled multicore fiber: An optical fiber in which signals transmitted in each core are separated and demodulated by post-processing on the premise that optical signals leaking from multiple optical transmission paths (cores) in the fiber interfere with and influence each other.