China Breaking The 500-kilometer Level, A New Record For On-site Optical Fiber Quantum Communication
On June 24, the reporter learned from the University of Science and Technology of China that Professor Pan Jianwei and his collaborators from the school successfully achieved 500-kilometer field non-relay optical fiber quantum key distribution, setting a new world record for field optical fiber quantum secure communication.
Relevant research results were recently published in the internationally renowned academic journals "Physics Review Letters" and "Nature Photonics".
The above-mentioned research results have successfully created a new world record for the longest distance of on-site optical fiber non-relay QKD. The bit rate of optical fiber exceeding 500 kilometers has broken the bit rate limit defined by traditional non-repeater QKD, that is, it exceeds the ideal detection. The limit of QKD coding without relay under the device (detector efficiency is 100%).
According to reports, the above-mentioned work has proved the feasibility of TF-QKD in the actual environment and paved the way for the realization of long-distance optical fiber quantum networks.
OPTICO (www.fiberopticom.com) focuses on the development of fiber optic network communication product lines and provides a comprehensive solution to the fiber connectivity system components. We supply fiber optic components, e.g. fiber patch cord, PLC splitter, SFP transceiver, MTP/MPO, CWDM/DWDM, FTTH solution, Data center wiring solution, etc. All the products adopt strict quality standards in the production and inspection, ensuring excellent operation performance and good product stability, safely and reliably ensuring the long-term use of products.
For more details, pls visit OPTICO website: www.fiberopticom.com.