Quantum cryptography is a new, multidisciplinary technique of distributing information to two or more parties in such a way that can guarantee security against an unauthorized eavesdropping attempt. In the presented paper three schemes of implementation of this goal by means of fiber optics, namely a scheme based on photon polarization, delayed interferometry, and quantum correlations of nonorthogonal states, are discussed. Realization of the proposed schemes is discussed as well as fundamental limits imposed on quantum cryptography by fiber-optics technique.

Date Published: 6 May 1996
PDF: 3 pages
Proc. SPIE 2799, Atomic and Quantum Optics: High-Precision Measurements, (6 May 1996); doi: 10.1117/12.239828

Published in SPIE Proceedings Vol. 2799:
Atomic and Quantum Optics: High-Precision Measurements
Sergei N. Bagayev; Anatoly S. Chirkin, Editor(s)