Fujikura Quantum Division

Fujikura Ltd. is a Japanese electrical equipment and cable manufacturing company founded in 1885 and headquartered in Tokyo, Japan, with Quantum Division developing optical components and fiber infrastructure for quantum communications networks. Fujikura manufactures specialized optical fibers, photonic components, and fiber optic cables supporting quantum key distribution (QKD) systems and quantum networking deployments. The company develops low-loss optical fibers optimized for quantum communications, single-photon compatible fiber components, and quantum networking hardware. Fujikura collaborates with Japanese telecommunications operators and quantum technology companies deploying quantum-safe communications infrastructure. The company participates in Japan's national quantum secure networking initiatives providing essential optical infrastructure for quantum communications. Fujikura serves telecommunications operators, quantum technology companies, government agencies, and research institutions requiring specialized optical components and fiber infrastructure for quantum communications networks, QKD systems, and quantum internet development. The company brings over 135 years of optical fiber expertise to quantum communications infrastructure supporting Japan's quantum technology leadership.