Multi-User Quantum Key Distribution Using Wavelength Division Multiplexing

Abstract

Quantumcryptography, or more specifically, quantum key distribution (QKD), has attracteda lot of attention in the recent years with thediscovery that it can provide absolute secrecy for communications. Wepropose a new architecture for implementing a fiber-based network ofquantum key distribution using optical wavelength division multiplexing in thefiber. We discuss the advantages over previous proposals and wereport experimental work demonstrating the feasibility of the proposed architecture. ©2003 COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.