“Plug and play” systems for quantum cryptography
作者:
A. Muller,
T. Herzog,
B. Huttner,
W. Tittel,
H. Zbinden,
N. Gisin,
期刊:
Applied Physics Letters
(AIP Available online 1997)
卷期:
Volume 70,
issue 7
页码: 793-795
ISSN:0003-6951
年代: 1997
DOI:10.1063/1.118224
出版商: AIP
数据来源: AIP
摘要:
We present a time-multiplexed interferometer based on Faraday mirrors, and apply it to quantum key distribution. The interfering pulses follow exactly the same spatial path, ensuring very high stability and self balancing. The use of Faraday mirrors compensates automatically any birefringence effects and polarization dependent losses in the transmitting fiber. First experimental results show a fringe visibility of 0.9984 for a 23-km-long interferometer, based on installed telecom fibers. ©1997 American Institute of Physics.
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