Multiuser quantum key distribution using wavelength division multiplexing
Gilles Brassard, Félix Bussières, Nicolas Godbout, Suzanne Lacroix · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2003
Quantum cryptography, or more specifically, quantum key distribution (QKD), has attracted a lot of attention in the recent years with the discovery that it can provide absolute secrecy for communications. We propose a new architecture for implementing a fiber-based network of quantum key distribution using optical wavelength division multiplexing in the fiber. We discuss the advantages over previous proposals and we report experimental work demonstrating the feasibility of the proposed architecture.