en.Wedoany.com Reported - On May 27, 2026, China Telecom Quantum Group, QuantumCTek, and FiberHome Technologies jointly held the "Quantum Empowerment · Secure Navigation — Integrated Quantum and Classical Communication Technology Achievement Exchange Conference" in Hefei, where they unveiled the nation's first cross-city encrypted OTN dedicated line based on integrated quantum and classical communication equipment. The conference was hosted by China Telecom and China Information and Communication Technologies Group, with relevant academicians and experts from the CAS Center for Excellence in Quantum Information and Quantum Physics in attendance. This launch marks the transition of quantum secure transmission based on integrated quantum and classical communication technology from equipment development to commercial deployment in live networks.
Conch Group, as a pilot unit for the achievements, shared its application experience at the event. The group has urgent needs for high-level security in scenarios such as production scheduling, video conferencing, and industrial data transmission. The integrated quantum-encrypted OTN dedicated line can provide anti-quantum computing attack protection for its core business, ensuring the security of critical data transmission across cities.
The newly launched cross-city integrated quantum-encrypted OTN dedicated line is built on the world's first commercial integrated quantum and classical communication OTN equipment released by China Telecom. This equipment overcomes the challenge of deep integration between QKD systems and traditional optical communication infrastructure, transforming integrated quantum and classical communication transmission technology into directly deployable hardware products. Leveraging this equipment, the demonstration application connects the Hefei Quantum Metropolitan Area Network, the National Quantum Backbone Network, and the Wuhu Quantum Metropolitan Area Network, enabling end-to-end quantum key negotiation and data encryption transmission, providing a new technical paradigm for cross-city data security transmission.
This achievement has achieved three technical breakthroughs: First, board-level integration and native embedding, embedding DV-QKD, key management, service encryption, and communication carrying capabilities into an integrated device, changing the original equipment stacking method and achieving unified platform management; Second, wavelength multiplexing and all-optical connection, enabling quantum signals, synchronization signals, service signals, management signals, and optical layer monitoring signals to be carried on the same fiber, reducing fiber resource occupation and deployment costs; Third, cross-domain networking and coordinated scheduling, where the integrated quantum and classical communication equipment can interface with quantum metropolitan area networks and the national quantum backbone network, achieving unified control of cross-domain key routing, key relay, and service scheduling through the Quantum Key Distribution Network Controller (QKDNC), enhancing the compatibility of existing quantum metropolitan area networks and the scalability of the national quantum security network. These achievements have received guidance and support from relevant academicians and experts at the CAS Center for Excellence in Quantum Information and Quantum Physics.
China Telecom stated that it will collaborate with industrial chain ecosystem partners to continuously drive the iteration and upgrade of integrated quantum and classical communication equipment technology and applications, accelerate deep application in industries such as government affairs, finance, industry, and energy, and help promote the industrialization of quantum security technology.
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