High-speed free-space quantum key distribution system for urban daylight applications.

Abstract

We report a free-space quantum key distribution system designed for high-speed key transmission in urban areas. Clocking the system at gigahertz frequencies and efficiently filtering background enables higher secure key rates than those previously achieved by similar systems. The transmitter and receiver are located in two separate buildings 300 m apart in… (More)
DOI: 10.1364/AO.52.003311