Title :
Implementation of a high-speed quantum key distribution system for metropolitan networks
Author :
Tomita, Akihisa ; Tanaka, Akihiro ; Yoshino, Ken-ichiro ; Takahashi, Seigo ; Nambu, Yoshihiro ; Tajima, Akio
Author_Institution :
Quantum Comput. & Inf. Project, JST ERATO-SORST, Tsukuba, Japan
Abstract :
Improvement of QKD performance, particularly on key generation rate, has been required to meet current network traffic. A high-speed QKD system should be equipped with low loss receivers with high visibility, highly efficient photon detectors with small dark count probability, and a stable clock synchronization system with low stray light to the quantum signals, because the key generation rate is determined by photon detection rate and error rate. High speed post processing is also required to improve key generation through-put. A solution for these issues will be discussed.
Keywords :
metropolitan area networks; quantum cryptography; synchronisation; telecommunication security; telecommunication traffic; high-speed quantum key distribution system; low loss receivers; metropolitan networks; network traffic; photon detection rate; photon detectors; photon error rate; quantum signals; stable clock synchronization system; Communication system traffic control; Cryptography; Information security; Laboratories; National electric code; Optical fiber communication; Optical receivers; Propagation losses; Quantum computing; Routing;
Conference_Titel :
Optical Fiber Communication (OFC), collocated National Fiber Optic Engineers Conference, 2010 Conference on (OFC/NFOEC)
Conference_Location :
San Diego, CA
Electronic_ISBN :
978-1-55752-884-1
