High-repetition rate quantum key distribution

• DOI: 10.1117/12.734443
• Publication Date: 2007-09-11T11:56:28Z
• Authors: J. C. Bienfang; A. Restelli; D. Rogers; A. Mink; B. J. Hershman; A. Nakassis; X. Tang; L. Ma; H. Xu; D. H. Su; Charles W. Clark; Carl J. Williams
• Keywords: Quantum key distribution

The desire for quantum-generated cryptographic key broadband encryption services has motivated the development of high-transmission-rate single-photon quantum distribution (QKD) systems. maximum operational transmission rate a QKD system is ultimately limited by timing resolution detectors and recent advances have enabled demonstration systems operating at rates well in to GHz regime. We demonstrated generated one-time-pad streaming video signal with high both free-space fiber. present an overview our high-speed architecture that allows continuous operation link, including error correction privacy amplification, increases key-production maximizing minimizing temporal gating on channel. also address count-rate concerns arise are orders magnitude higher than count detectors.