A. Muller, T. Herzog, B. Huttner, W. Tittel, H. Zbinden, N. Gisin
Published 1996-11-25Version 1
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.
Comments: LaTex, 6 pages, with 2 Postscript figures, Submitted to Applied Physics Letters
Optimal eavesdropping in quantum cryptography with six states
Incoherent and Coherent Eavesdropping in the 6-state Protocol of Quantum Cryptography
How much security does Y-00 protocol provide us ?
