Europhysics Letters (EPL)

Experimental Demonstration of Quantum Cryptography Using Polarized Photons in Optical Fibre over More than 1 km

A Muller, Jacques Breguet, Nicolas Gisin

Published Aug 20, 1993• 215 citations

Abstract

A quantum cryptography set-up is described. It uses polarized photons to code the key. The photons remain guided from the semiconductor laser diode until the photon counter module. The feasibility of establishing a key over more than 1 km by this method has been experimentally demonstrated.

DOI: 10.1209/0295-5075/23/6/001

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