{open_quotes}Plug and play{close_quotes} systems for quantum cryptography

Journal Article · Sat Feb 01 00:00:00 EST 1997 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.118224· OSTI ID:467142

Muller, A; Herzog, T; Huttner, B; Tittel, W; Zbinden, H; Gisin, N ^[1]

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1. Group of Applied Physics, University of Geneva, CH 1211 Geneva 4 (Switzerland)

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. {copyright} {ital 1997 American Institute of Physics.}

• OSTI ID: 467142
• Journal Information: Applied Physics Letters, Vol. 70, Issue 7; Other Information: PBD: Feb 1997
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
QUANTUM MECHANICS
DATA TRANSMISSION
INTERFEROMETERS
MULTIPLEXERS
FARADAY EFFECT
MIRRORS
BIREFRINGENCE
OPTICAL FIBERS
COMMUNICATIONS