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Registered QUANTUM KEY DISTRIBUTION SYSTEM AND OPERATION METHOD THEREOF

Inventors
Application No.
17488955 (2021.09.29)
Publication No.
20220141008 (2022.05.05)
Registration No.
11770245 (2023.09.26)
Country
UNITED STATES
Project Code
20HB1900, Technology development of transmitter and receiver integrated module in a polarization based free-space quantum key distribution for short-range low-s, Youn Chun Ju
20HB4400, Technology development of quantum channel integrated transmitter and receiver chips and module for utlra small-size fiber based quantum key distributi, Youn Chun Ju
Abstract
Disclosed is a quantum key distribution system using an RFI (reference frame independent) QKD (quantum key distribution) protocol, which includes a first signal processing circuit that generates transmission basis information and transmission bit information, a quantum channel transmitter that generates a single photon or coherent light, and modulates the single photon or the coherent light based on the transmission basis information and the transmission bit information to generate a quantum signal, a quantum channel receiver that receives the quantum signal through a quantum channel and detects reception bit information from the quantum signal based on reception basis information, and a second signal processing circuit that generates the reception basis information, transmits the reception basis information to the first signal processing circuit through a public channel, and receives the transmission basis information from the first signal processing circuit through the public channel.
KSP Keywords
AND operation, Distribution System, Operation method, Reference frame, Signal Processing, Signal processing circuit, key distribution, processing circuit, quantum channel, quantum key distribution, signal based, single photon
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Status Patent Country KIPRIS
Registered QUANTUM KEY DISTRIBUTION SYSTEM AND OPERATION METHOD THEREOF UNITED STATES