Feedback
Settings

Settings

Goto Application

1. WO2022163577 - PHOTON DETECTION DEVICE, RECEPTION DEVICE, QUANTUM KEY DISTRIBUTION SYSTEM, AND QUANTUM SIGNAL DETECTION METHOD

Submit observation
PermaLink
Publication Number WO/2022/163577
Publication Date 04.08.2022
International Application No. PCT/JP2022/002434
International Filing Date 24.01.2022
IPC
H04B 10/70 2013.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
70Photonic quantum communication
G01J 1/42 2006.1
GPHYSICS
01MEASURING; TESTING
JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
1Photometry, e.g. photographic exposure meter
42using electric radiation detectors
G01J 11/00 2006.1
GPHYSICS
01MEASURING; TESTING
JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
11Measuring the characteristics of individual optical pulses or of optical pulse trains
H01L 31/107 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
31Semiconductor devices sensitive to infra-red radiation, light, electromagnetic radiation of shorter wavelength, or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
08in which radiation controls flow of current through the device, e.g. photoresistors
10characterised by at least one potential-jump barrier or surface barrier, e.g. phototransistors
101Devices sensitive to infra-red, visible or ultra-violet radiation
102characterised by only one potential barrier or surface barrier
107the potential barrier working in avalanche mode, e.g. avalanche photodiode
H04B 10/60 2013.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
60Receivers
H04L 9/12 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Arrangements for secret or secure communication
12Transmitting and receiving encryption devices synchronised or initially set up in a particular manner
CPC
G01J 1/42
GPHYSICS
01MEASURING; TESTING
JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
1Photometry, e.g. photographic exposure meter
42using electric radiation detectors
G01J 11/00
GPHYSICS
01MEASURING; TESTING
JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
11Measuring the characteristics of individual optical pulses or of optical pulse trains
H01L 31/107
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
31Semiconductor devices sensitive to infra-red radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
08in which radiation controls flow of current through the device, e.g. photoresistors
10characterised by at least one potential-jump barrier or surface barrier, e.g. phototransistors
101Devices sensitive to infra-red, visible or ultra-violet radiation
102characterised by only one potential barrier or surface barrier
107the potential barrier working in avalanche mode, e.g. avalanche photodiode
H04B 10/60
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
60Receivers
H04B 10/70
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
70Photonic quantum communication
H04L 9/12
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Cryptographic mechanisms or cryptographic; arrangements for secret or secure communication
12Transmitting and receiving encryption devices synchronised or initially set up in a particular manner
Applicants
  • 日本電気株式会社 NEC CORPORATION [JP]/[JP]
  • 国立研究開発法人情報通信研究機構 NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY [JP]/[JP]
  • 国立大学法人北海道大学 NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY [JP]/[JP]
  • 国立大学法人　東京大学 THE UNIVERSITY OF TOKYO [JP]/[JP]
Inventors
  • 吉野　健一郎 YOSHINO Ken-ichiro
  • 藤原　幹生 FUJIWARA Mikio
  • 富田　章久 TOMITA Akihisa
  • 小芦　雅斗 KOASHI Masato
  • 武岡　正裕 TAKEOKA Masahiro
  • 佐々木　雅英 SASAKI Masahide
Agents
  • 家入　健 IEIRI Takeshi
Priority Data
2021-01398629.01.2021JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) PHOTON DETECTION DEVICE, RECEPTION DEVICE, QUANTUM KEY DISTRIBUTION SYSTEM, AND QUANTUM SIGNAL DETECTION METHOD
(FR) DISPOSITIF DE DÉTECTION DE PHOTONS, DISPOSITIF DE RÉCEPTION, SYSTÈME DE DISTRIBUTION DE CLÉ QUANTIQUE ET PROCÉDÉ DE DÉTECTION DE SIGNAL QUANTIQUE
(JA) 光子検出装置、受信装置、量子鍵配送システム及び量子信号の検出方法
front page image
Abstract
(EN) The purpose of the present invention is to prevent wiretapping in quantum key distribution. An APD (13) outputs an output current (I1) indicating a detection result of a quantum signal (Q). A current-voltage conversion unit (14) converts the output current (I1) into an output voltage signal (S12). A sampling unit (15) outputs an output voltage signal (S13) obtained via the analog-digital conversion of the output voltage signal (S12). A signal processing unit (16) performs a predetermined signal process on the output voltage signal (S13), and outputs a photon detection signal (OUT) indicating the detection result of the quantum signal (Q). When a time difference (Δt) between a timing when the quantum signal (Q) is input to the APD (13) and a reference timing determined on the basis of a clock signal (CLK) does not fall within a determination range, the photon detection signal (OUT) is not output from the signal processing unit (16).
(FR) L'objet de la présente invention est d'empêcher l'écoute en ligne dans la distribution de clé quantique. Une APD (13) délivre un courant de sortie (I1) indiquant un résultat de détection d'un signal quantique (Q). Une unité de conversion courant-tension (14) convertit le courant de sortie (I1) en un signal de tension de sortie (S12). Une unité d'échantillonnage (15) délivre un signal de tension de sortie (S13) obtenu par la conversion analogique-numérique du signal de tension de sortie (S12). Une unité de traitement de signal (16) effectue un traitement de signal prédéfini sur le signal de tension de sortie (S13), et délivre un signal de détection de photons (OUT) indiquant le résultat de détection du signal quantique (Q). Lorsqu'une différence de temps (Δt) entre un instant où le signal quantique (Q) est entré dans l'APD (13) et une instant de référence déterminé sur la base d'un signal d'horloge (CLK) ne s'inscrit pas dans une plage de détermination, le signal de détection de photons (OUT) n'est pas délivré par l'unité de traitement de signal (16).
(JA) 量子鍵配送における盗聴を防止することを目的とする。ＡＰＤ（１３）は、量子信号（Ｑ）の検出結果を示す出力電流（Ｉ１）を出力する。電流電圧変換部（１４）は、出力電流（Ｉ１）を出力電圧信号（Ｓ１２）に変換する。サンプリング部（１５）は、出力電圧信号（Ｓ１２）をアナログ－デジタル変換した出力電圧信号（Ｓ１３）を出力する。信号処理部（１６）は、出力電圧信号（Ｓ１３）に所定の信号処理を行って、量子信号（Ｑ）の検出結果を示す光子検出信号（ＯＵＴ）を出力する。量子信号（Ｑ）がＡＰＤ（１３）に入射するタイミングと、クロック信号（ＣＬＫ）に基づいて決定される基準タイミングと、の間の時間差（Δｔ）が判定範囲に収まらない場合には、光子検出信号（ＯＵＴ）は信号処理部（１６）から出力されない。
Latest bibliographic data on file with the International Bureau
# -