Single photon interference in 10 km long optical fibre interferometer
- 1 January 1993
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 29 (7), 634-635
- https://doi.org/10.1049/el:19930424
Abstract
Single-photon interference fringes with greater than 90% visibility were measured using a 10 km long optical fibre interferometer. The experiment employed a pulsed semiconductor laser source operating at a wavelength of 1.3 μm and a novel single-photon counting scheme using high-speed germanium avalanche photodiodes. Interferometers of this type could form the basis of future quantum cryptography systems.Keywords
This publication has 1 reference indexed in Scilit:
- Quantum Cryptography, or Unforgeable Subway TokensPublished by Springer Science and Business Media LLC ,1983