Japanese firm develops optical fiber with 4x traffic capacity, could be used for undersea cables — MCF retains the same diameter and works with existing infrastructure

Japanese firm NTT has developed a four-core multicore optical fiber (MCF) that quadruples the capacity of traditional fiber without increasing its size. This innovation is crucial for meeting the growing demand for data transfer due to advancements in 5G, AI, and cloud services. The MCF technology enables a single cable to carry four independent optical paths, significantly increasing data transmission capabilities. NTT also designed technical accessories to facilitate the integration of MCF into existing infrastructure, making upgrades more cost-effective and competitive. The technology is set to be deployed in 2029, offering a promising solution for telecom companies seeking efficient ways to enhance their networks.