An Optical Scheme for Quantum Multi-Service Network

Abstract

Several quantum protocols for data security having been proposed and, in general, they have different optical implementations. However, for the implementation of quantum protocols in optical networks, it is highly advantageous if the same optical setup can be used for running different quantum communication protocols. In this direction, here we show an optical scheme that can be used for quantum key distribution (QKD), quantum secure direct communication (QSDC) and quantum secret sharing (QSS). Additionally, it is naturally resistant to the attack based on single-photon detector blinding. At last, we show a proof-of-principle experiment in 1 km optical fiber link that shows the feasibility of the proposed scheme.

References in corpus (5)

• Quantum secret sharing
• Hacking commercial quantum cryptography systems by tailored bright illumination
• High rate, long-distance quantum key distribution over 250km of ultra low loss fibres
• Quantum key distribution based on a Sagnac loop interferometer and polarization-insensitive phase modulators
• Quantum information technology with Sagnac interferometer: Interaction-free measurement, quantum key distribution and quantum secret sharing