Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

High Speed Quantum Key Distribution over Optical Fiber Network System



Xiao Tang, Lijun Ma, Alan Mink


NIST has developed a number of complete fiber-based high-speed quantum key distribution QKD)systems that includes an 850 nm QKD system for a local area network (LAN), a 1310 nm QKD system for a metropolitan area network (MAN), and a 3-node quantum network controlled by a network manager. This paper discusses the key techniques used to implement these systems, which include polarization recovery, noise reduction, frequency up-conversion detection based on PPLN waveguide, custom high-speed data handling boards, and quantum network management. Using our quantum network, a QKD secured video surveillance application has been demonstrated. Our intention is to show the feasibility and sophistication of QKD systems under current technology development.
Journal of Research (NIST JRES) -


Quantum Key Distribution, Fiber network, BB84, B92, Detection Time Bin Shift, Frequency Up-conversion detection


Tang, X. , Ma, L. and Mink, A. (2009), High Speed Quantum Key Distribution over Optical Fiber Network System, Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed May 27, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created May 28, 2009, Updated February 19, 2017