Fusion splicing is the process of fusing or welding two fibers together usually by an electric arc. Fusion splicing is the most widely used method of splicing as it provides for the lowest loss and least reflectance, as well as providing the strongest and most reliable joint between. ◆ In a field environment where the signal propagation environment in optical fiber cables fluctuates due to external disturbances such as wind and rain, we succeeded for the first time in the world stable transmission experiment with the record field capacity of 455 terabits per second (more than. The world's networks are increasingly built on fibre's ability to transmit data over long distance with minimal signal loss - fusion splicing makes this possible. An optoelectronic hybrid cable is a unique fusion of optical fiber and copper cable that leverages the advantages of both fiber optics and copper conductors. It not only combines the benefits of its parent technologies but also facilitates long distance, high-speed data transmission with minimal. 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. 2‐core fibre for submarine cable is becoming the first commercial application of multi‐core fibre, which should enable to expand the capacity beyond the current limitation of submarine cable size.