On November 17, reports emerged that China Telecom has triumphantly accomplished the world's inaugural ultra-long-distance hollow-core fiber hybrid transmission experiment, covering a remarkable distance of 101.6 kilometers. This groundbreaking experiment not only supports high-power transmission at 21 dBm but also boasts an impressive transmission capacity of 37.6 Tbps, all while maintaining a stable security key rate at the 5 kbps level. This feat represents a significant milestone for China in the realm of quantum-classical hybrid transmission technology via hollow-core fiber. The experiment was a collaborative effort, jointly conducted by the China Telecom Research Institute, which utilized its Cloud-Network Integration Innovation Platform, alongside partners such as CT Quantum Group, QuantumCTek, Yangtze Optical Fiber and Cable (YOFC), ZTE, and Beijing University of Posts and Telecommunications.
