Title :
Fast and long-distance differential-phase-shift quantum key distribution
Author :
Diamanti, E. ; Langrock, C. ; Waks, E. ; Fejer, M.M. ; Yamamoto, Y. ; Takesue, H. ; Honjo, T. ; Inoue, K.
Author_Institution :
Edward L. Ginzton Lab., Stanford Univ., Stanford, CA
Abstract :
A differential-phase-shift quantum key distribution experiment employing up-conversion single-photon detectors is presented. We achieved a 1-Mbit/s sifted key rate over a 20-km optical fiber, and distributed keys secure against general individual attacks over 75 km.
Keywords :
differential phase shift keying; optical fibre communication; optical receivers; photodetectors; quantum cryptography; bit rate 1 Mbit/s; distance 20 km; distance 75 km; distributed secret keys; long-distance differential-phase-shift; optical fiber; quantum key distribution; up-conversion single-photon detectors; Detectors; Laboratories; Optical attenuators; Optical fibers; Optical pulse generation; Optical pulses; Phase detection; Phase modulation; Protocols; Pulse modulation; (270.0270) Quantum Optics; (270.5570) Quantum Detectors;
Conference_Titel :
Lasers and Electro-Optics, 2006 and 2006 Quantum Electronics and Laser Science Conference. CLEO/QELS 2006. Conference on
Conference_Location :
Long Beach, CA
Print_ISBN :
978-1-55752-813-1
Electronic_ISBN :
978-1-55752-813-1
DOI :
10.1109/CLEO.2006.4628712
