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The World's First Commercial Application of Ultra-long Distance Co-propagation of QKD and Terabit Classical Optical Data Channels

China Telecom Beijing Institute, together with its partners QuantumCTek, Fiber Home and ZTE Anhui Wan Tong, released the test result of the world's first commercial ultra-long distance co-propagation of quantum key distribution (QKD) and large capacity classical optical data channels. This test employs a commercial QKD system and the commercial 8Tbps (80X100Gbps) large capacity dense wavelength division multiplexing (DWDM) system, which together realize the repeaterless QKD transmission over 100 km.



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