``Plug and play'' systems for quantum cryptography

Preprint

25 November 1996

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.quant-ph/9611042

Abstract

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. 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 23km-long interferometer, based on installed telecom fibers.

Keywords

MULTIPLEXED INTERFEROMETER
INTERFEROMETER BASED
QUANTUM CRYPTOGRAPHY
TIME MULTIPLEXED
FARADAY MIRRORS
POLARIZATION
MIRRORS
FIBERS

All Related Versions

Version 1, 1996-11-25, ArXiv
Published version: Applied Physics Letters, 70 (7), 793.

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