Patent

Registered QUANTUM INFORMATION TRANSMITTER, QUANTUM COMMUNICATION SYSTEM INCLUDING THE SAME, AND OPERATING METHOD OF QUANTUM INFORMATION TRANSMITTER

Inventors
Youn Chun Ju, Lim Kyongchun, Choi Byung-Seok, Young-Ho Ko, Kim Minchul, Kim Kap-Joong, Choe Joong-Seon
Application No.
17203186 (2021.03.16)
Publication No.
20210306077 (2021.09.30)
Registration No.
11522618 (2022.12.06)
Country
UNITED STATES
Project Code
19HB2600, 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
Abstract
Disclosed are a quantum information transmitter, a quantum communication system including the same, and an operating method of the quantum information transmitter. The quantum information transmitter includes a light source driver, a light source, and a light modulator. The light source driver generates a first light source driving signal having a first level and a second light source driving signal having a second level. The light source generates a first light signal having a first average number of photons in response to the first light source driving signal, and generates a second light signal having a second average number of photons in response to the second light source driving signal. The optical modulator modulates the first light signal to generate a target signal, and modulates the second light signal to generate a decoy signal.
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Status Patent Country KIPRIS
Registered 양자 정보 송신기, 이를 포함하는 양자 통신 시스템, 및 양자 정보 송신기의 동작 방법 KOREA KIPRIS