Title :
Experimental realization of quantum cryptosystem over 87 km
Author :
Hasegawa, T. ; Nishioka, T. ; Ishizuka, H. ; Abe, J. ; Matsui, M. ; Takeuchi, S.
Author_Institution :
Inf. Technol. R&D Center, Mitsubishi Electr. Corp., Kanagawa, Japan
Abstract :
We have successfully implemented telecom-wavelength quantum cryptosystem over 87.5 km (world´s longest) including error correction and privacy amplification. We confirmed that key distribution was performed at a rate of 7.2 bps with a 7.6% QBER.
Keywords :
error statistics; optical fibre communication; quantum cryptography; quantum optics; 7.2 bit/s; error correction; privacy amplification; quantum cryptosystem; telecom-wavelength cryptosystem; Breakdown voltage; Cryptography; Detectors; Error correction; Optical attenuators; Optical pulses; Privacy; Pulse amplifiers; Space vector pulse width modulation; Temperature;
Conference_Titel :
Quantum Electronics and Laser Science, 2003. QELS. Postconference Digest
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-749-0
DOI :
10.1109/QELS.2003.237855
