WO2022103288A1 - Dispositif de communication quantique sur des fréquences latérales - Google Patents

Dispositif de communication quantique sur des fréquences latérales Download PDF

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Publication number
WO2022103288A1
WO2022103288A1 PCT/RU2020/000596 RU2020000596W WO2022103288A1 WO 2022103288 A1 WO2022103288 A1 WO 2022103288A1 RU 2020000596 W RU2020000596 W RU 2020000596W WO 2022103288 A1 WO2022103288 A1 WO 2022103288A1
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WO
WIPO (PCT)
Prior art keywords
fiber
optical
attacks
attenuator
beam splitter
Prior art date
Application number
PCT/RU2020/000596
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English (en)
Russian (ru)
Inventor
Семен Владимирович СМИРНОВ
Владимир Викторович ЧИСТЯКОВ
Сергей Михайлович КЫНЕВ
Владимир Ильич ЕГОРОВ
Максим Алексеевич ФАДЕЕВ
Андрей Александрович АНИСИМОВ
Алексей Константинович ХАЛТУРИНСКИЙ
Original Assignee
Общество С Ограниченной Ответственностью Ооо "Смартс-Кванттелеком"
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Общество С Ограниченной Ответственностью Ооо "Смартс-Кванттелеком" filed Critical Общество С Ограниченной Ответственностью Ооо "Смартс-Кванттелеком"
Priority to PCT/RU2020/000596 priority Critical patent/WO2022103288A1/fr
Publication of WO2022103288A1 publication Critical patent/WO2022103288A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/70—Photonic quantum communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/12—Transmitting and receiving encryption devices synchronised or initially set up in a particular manner

Definitions

  • the invention relates to optical communication technology, namely to photonic quantum communication systems.
  • a device for quantum distribution of symmetrical bit sequences is known [US Patent 627 22 24 B1, priority date 04/07/2001. MKI: H04L 9/08; H04K 1/00], containing a sender unit connected via a fiber-optic communication line, including a source of monochromatic radiation, an electro-optical phase modulator and an attenuator, located in series along the radiation propagation path, as well as a phase shift device, the output of which is connected to the control input of the electro-optical phase modulator, and the input of the phase shifter is connected to the output of the RF signal generator, and the receiver unit, which includes an electro-optical phase modulator, the output of which is optically coupled to a spectral filter, which is optically coupled to a classical radiation receiver and a single photon detector, which controls the input of the electro-optical phase modulator connected to the output of the phase shift device, to the input of which the output of the RF signal generator is connected, the fiber-optic communication line is optically coupled to the at
  • the technical task of the proposed photonic quantum communication device is to change the technical implementation of the photonic quantum communication device, to increase the degree of protection of information from external attacks, such as: attacks with blinding of a single-photon detector, attacks with interception of re-emission signals from single-photon detectors, attacks with optical sounding of modulators ("Trojan horse”).
  • the technical result of the proposed device consists in a new technical implementation of the sender and receiver blocks of the photonic quantum communication device, which protects the device from external attacks listed above.
  • the technical result of increasing the degree of protection of information from external attacks is achieved by the fact that the sender and receiver blocks include: passive fiber optic attenuator, two fiber optic isolators, temperature controller, optical fiber beam splitter, fiber optic spectral filter, fiber optic circulator, fiber optic switch, three fiber photodetectors.
  • FIG. 1 is a schematic diagram of a photonic quantum communication system according to an embodiment of the present invention.
  • the device of the photonic quantum communication system is shown in Fig. 1, where 1 is a source of monochromatic radiation in the form of a laser, 2 is a fiber optic isolator, 3 is an electro-optical phase modulator, 4 is a tunable fiber optic attenuator, 5 is a passive fiber optic attenuator, 6 is a fiber optic isolator, 7 is a temperature controller, 8 - quantum channel for transmission of single photons, 9 - fiber optical isolator, 10 - fiber optical beam splitter (50/50) with two ports, 11, 20 and 21 - photodetectors with different optical sensitivity, 12 and 18 - fiber spectral filters, 13 - fiber polarizing beam splitter with two ports, 16 - fiber polarization connector with two ports, 14 and 15 - electro-optical phase modulators, 17 - fiber optical circulator with three ports (indicating port numbers), 19 - fiber optic switch or fiber optical beam splitter, 22 - single-photon photodetector, 23 - electronic control and
  • the tunable fiber optical attenuator 4 in this embodiment is configured to attenuate the radiation to the level specified by the protocol per cycle of phase modulation in total at side frequencies.
  • the radiation enters the fiber spectral filter 12, which cuts off the entire spectral range of wavelengths not involved in the transmission of quantum information, then the radiation passes through the first port of the fiber optical circulator 17 and enters the second fiber spectral filter 18, which reflects a narrow spectral range, in which contains single-photon radiation that carries the information necessary for the transmission of quantum information and, in some implementations of photonic quantum communication systems, also auxiliary radiation that does not contain information about the quantum states of single photons, the radiation reflected from the fiber spectral filter passes through the second port of the fiber optical circulator and enters the single photon detector 22.
  • the radiation that has passed through the second fiber spectral filter 18 enters the fiber optic switch or fiber optic beam splitter 19, which directs it to two photodetectors with different precise optical sensitivity 20, 21, for constant control of optical power radiation that passed through the first fiber spectral filter 12.
  • An attempt to impose triggering on the detector of single photons will affect the power of the auxiliary radiation, which does not contain information about the quantum states of single photons.
  • Continuous monitoring of the optical power of the auxiliary radiation that has passed through the fiber spectral filter makes it possible to detect an attempt to impose triggering of the single photon detector.
  • the use of a fiber optic switch and two photodetectors with different sensitivities will make it possible to control a wide range of optical powers.
  • a fiber-optic circulator 17 and an optical fiber insulator 9 are installed at the input of the receiver unit of the photonic quantum communication system, which prevents the passage of optical radiation back to the quantum channel.
  • a passive optical attenuator 5 and a fiber optical isolator 6 are placed in the sender block, which prevent the passage of optical radiation from the quantum communication channel to the sender block.
  • the passive optical attenuator 5 and the optical fiber isolator 6 are equipped with a temperature control 7 to detect an attempt to damage the optical components by high optical power.
  • a fiber beam splitter 10 and a fiber photodetector 11 are placed in the receiver unit between the optical isolator 9 and the fiber spectral filter 12, allowing continuous monitoring of the optical power going back to the quantum channel from the receiver unit.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Optical Communication System (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)

Abstract

L'invention se rapporte aux techniques des communications optiques, et concerne notamment des systèmes de communication quantique photonique. Le but de ce dispositif est de modifier la mise en oeuvre technique du dispositif afin d'augmenter le niveau de protection des informations contre des attaques externes comme: des attaques avec aveuglement d'un détecteur monophotonique, des attaques avec une interception des signaux de ré-émission de détecteurs monophotoniques, des attaques avec un sondage optique des modulateurs (Cheval de Troie). Le résultat technique de la présente invention consiste en une nouvelle mise en oeuvre technique des unités d'émetteur et de récepteur du dispositif de communication quantique photonique, assurant une protection accrue du dispositif contre les attaques externes listées précédemment. Ce résultat technique est atteint du fait que le dispositif comprend dans sa composition: un atténuateur à fibre optique passif, deux isolateurs à fibre optique, un contrôleur de température, un séparateur à fibre optique, un filtre spectral à fibre optique, un circulateur à fibre optique, un commutateur à fibre optique et trois détecteurs à fibre optique.
PCT/RU2020/000596 2020-11-10 2020-11-10 Dispositif de communication quantique sur des fréquences latérales WO2022103288A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/RU2020/000596 WO2022103288A1 (fr) 2020-11-10 2020-11-10 Dispositif de communication quantique sur des fréquences latérales

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/RU2020/000596 WO2022103288A1 (fr) 2020-11-10 2020-11-10 Dispositif de communication quantique sur des fréquences latérales

Publications (1)

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WO2022103288A1 true WO2022103288A1 (fr) 2022-05-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2806811C1 (ru) * 2023-02-21 2023-11-07 Открытое Акционерное Общество "Российские Железные Дороги" Устройство квантовой рассылки ключа на боковых частотах с повышенной устойчивостью к шумам в волоконно-оптической линии связи

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2247325C2 (ru) * 2003-01-08 2005-02-27 Общество с ограниченной ответственностью "Научно- производственное предприятие "Резонанс" Способ температурной корректировки передающей функции датчика физической величины
RU2454810C1 (ru) * 2010-11-24 2012-06-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Санкт-Петербургский национальный исследовательский университет информационных технологий, механики и оптики" ("НИУ ИТМО") Устройство квантовой рассылки криптографического ключа на поднесущей частоте модулированного излучения
RU2502102C2 (ru) * 2012-02-27 2013-12-20 Андрей Владимирович Царев Оптический фильтр
US10020937B2 (en) * 2010-10-08 2018-07-10 Id Quantique Sa Apparatus and method for the detection of attacks taking control of the single photon detectors of a quantum cryptography apparatus by randomly changing their efficiency

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2247325C2 (ru) * 2003-01-08 2005-02-27 Общество с ограниченной ответственностью "Научно- производственное предприятие "Резонанс" Способ температурной корректировки передающей функции датчика физической величины
US10020937B2 (en) * 2010-10-08 2018-07-10 Id Quantique Sa Apparatus and method for the detection of attacks taking control of the single photon detectors of a quantum cryptography apparatus by randomly changing their efficiency
RU2454810C1 (ru) * 2010-11-24 2012-06-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Санкт-Петербургский национальный исследовательский университет информационных технологий, механики и оптики" ("НИУ ИТМО") Устройство квантовой рассылки криптографического ключа на поднесущей частоте модулированного излучения
RU2502102C2 (ru) * 2012-02-27 2013-12-20 Андрей Владимирович Царев Оптический фильтр

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2806811C1 (ru) * 2023-02-21 2023-11-07 Открытое Акционерное Общество "Российские Железные Дороги" Устройство квантовой рассылки ключа на боковых частотах с повышенной устойчивостью к шумам в волоконно-оптической линии связи

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