Title :
An experimental quantum cryptography using balanced homodyne detection over a 1 km optical fiber
Author :
Namiki, R. ; Konishi, T. ; Yanianaka, H. ; Mihirogi, T. ; Hirano, T.
Author_Institution :
Dept. of Phys., Gakushuin Univ., Tokyo, Japan
Abstract :
We report an experimental quantum cryptography using balanced homodyne detection over a 1 km optical fiber. In this scheme we can measure the distribution of the quadrature amplitudes of the weak coherent pulse.
Keywords :
homodyne detection; light interferometry; optical fibre communication; photodetectors; quantum cryptography; 1 km; balanced homodyne detection; optical fiber communication; quadrature amplitudes; quantum cryptography; weak coherent pulse; Bit error rate; Cryptographic protocols; Cryptography; Optical detectors; Optical fibers; Optical pulses; Phase detection; Phase measurement; Pulse amplifiers; Pulse measurements;
Conference_Titel :
Lasers and Electro-Optics, 2001. CLEO/Pacific Rim 2001. The 4th Pacific Rim Conference on
Conference_Location :
Chiba, Japan
Print_ISBN :
0-7803-6738-3
DOI :
10.1109/CLEOPR.2001.971007
