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WO2009011255A1 - 量子暗号鍵配付システム、光送信器、光変調制御回路、および光変調制御方法 - Google Patents

量子暗号鍵配付システム、光送信器、光変調制御回路、および光変調制御方法 Download PDF

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Publication number
WO2009011255A1
WO2009011255A1 PCT/JP2008/062384 JP2008062384W WO2009011255A1 WO 2009011255 A1 WO2009011255 A1 WO 2009011255A1 JP 2008062384 W JP2008062384 W JP 2008062384W WO 2009011255 A1 WO2009011255 A1 WO 2009011255A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical
modulation control
optical modulation
quantum encryption
control circuit
Prior art date
Application number
PCT/JP2008/062384
Other languages
English (en)
French (fr)
Inventor
Akihiro Tanaka
Akio Tajima
Seigo Takahashi
Wakako Maeda
Original Assignee
Nec Corporation
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.)
Filing date
Publication date
Application filed by Nec Corporation filed Critical Nec Corporation
Priority to JP2009523609A priority Critical patent/JP5338665B2/ja
Priority to US12/668,919 priority patent/US8718485B2/en
Publication of WO2009011255A1 publication Critical patent/WO2009011255A1/ja

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Classifications

    • 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
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0852—Quantum cryptography
    • H04L9/0858—Details about key distillation or coding, e.g. reconciliation, error correction, privacy amplification, polarisation coding or phase coding
    • 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
    • H04B10/50—Transmitters
    • H04B10/516—Details of coding or modulation
    • H04B10/548—Phase or frequency modulation

Landscapes

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

Abstract

　量子暗号送信器(11)において、位相変調器(1103,1104)とＬＮ強度変調器(1105)を用いて、所望のデータに基づいて光信号に対し光位相変調および光強度変調を行うことにより量子暗号受信器(13)へ送信する所望の光信号を生成し、この所望の光信号から検出された光子検出数に基づいて、バイアス制御回路(1108)により、ＬＮ強度変調器(1105)での光強度変調時の動作点を制御する。
PCT/JP2008/062384 2007-07-13 2008-07-09 量子暗号鍵配付システム、光送信器、光変調制御回路、および光変調制御方法 WO2009011255A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009523609A JP5338665B2 (ja) 2007-07-13 2008-07-09 量子暗号鍵配付システム
US12/668,919 US8718485B2 (en) 2007-07-13 2008-07-09 Quantum key distribution system, optical transmitter, optical modulation control circuit, and optical modulation control method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007184966 2007-07-13
JP2007-184966 2007-07-13

Publications (1)

Publication Number Publication Date
WO2009011255A1 true WO2009011255A1 (ja) 2009-01-22

Family

ID=40259592

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/062384 WO2009011255A1 (ja) 2007-07-13 2008-07-09 量子暗号鍵配付システム、光送信器、光変調制御回路、および光変調制御方法

Country Status (3)

Country Link
US (1) US8718485B2 (ja)
JP (2) JP5338665B2 (ja)
WO (1) WO2009011255A1 (ja)

Cited By (12)

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JP2009060555A (ja) * 2007-09-04 2009-03-19 Nec Corp 光送信器および複合変調器の制御方法
JP2009225020A (ja) * 2008-03-14 2009-10-01 Nec Corp 量子鍵配付の符号化装置と方法
JP2011166292A (ja) * 2010-02-05 2011-08-25 Nec Corp 信号処理システム、量子暗号システム、信号処理方法、及び量子暗号方法
JP2011188043A (ja) * 2010-03-05 2011-09-22 Nec Corp 光通信システムにおける通信装置およびその干渉計同期制御方法
JP2015018109A (ja) * 2013-07-11 2015-01-29 日本電気株式会社 光変調装置および光変調器の駆動方法
JP2015122675A (ja) * 2013-12-25 2015-07-02 日本電気株式会社 変調装置および変調方法
JP2016046557A (ja) * 2014-08-20 2016-04-04 日本電気株式会社 量子暗号鍵配付方法および量子暗号鍵配付装置
JP2018137739A (ja) * 2017-02-20 2018-08-30 株式会社東芝 光量子通信システム
CN109150313A (zh) * 2018-08-15 2019-01-04 上海霍普光通信有限公司 一种低速率光端机的光信号传输方法
CN114039666A (zh) * 2021-11-26 2022-02-11 济南量子技术研究院 一种强度调制装置及其稳定控制方法、qkd系统
CN114844572A (zh) * 2021-02-02 2022-08-02 北京中创为南京量子通信技术有限公司 一种即插即用的量子密钥分发系统
CN115333724A (zh) * 2022-06-30 2022-11-11 北京量子信息科学研究院 量子密钥分发系统的调制装置及制备稳定强度状态的方法

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EP3598691A1 (en) * 2018-07-18 2020-01-22 Kabushiki Kaisha Toshiba Information processing method for quantum key distribution, and computer-readable medium
CN109039626B (zh) * 2018-10-29 2023-05-23 中国电子科技集团公司电子科学研究院 相差控制的量子密钥分发时间比特-相位解码方法和装置
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WO2020195102A1 (ja) * 2019-03-26 2020-10-01 日本電気株式会社 受信器、検知システム及び検知方法
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US10992391B1 (en) * 2019-11-27 2021-04-27 The United States Of Americas As Represented By The Secretary Of The Army System and method for communication of information using entangled photons
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WO2021250829A1 (ja) * 2020-06-10 2021-12-16 日本電気株式会社 光送信機および変調タイミング正誤判定方法
US11695552B2 (en) 2021-03-25 2023-07-04 International Business Machines Corporation Quantum key distribution in a multi-cloud environment
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CN113141209A (zh) * 2021-06-21 2021-07-20 国开启科量子技术(北京)有限公司 用于在量子通信系统的发射端中检测强光的装置
CN114900403B (zh) * 2022-05-13 2023-05-12 中国电子科技集团公司第三十研究所 一种基于闭环数字预失真的信号失真控制系统
JP2024058965A (ja) * 2022-10-17 2024-04-30 日本電気株式会社 光通信システムにおける送信機、ネスト型変調器の制御方法およびプログラム
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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009060555A (ja) * 2007-09-04 2009-03-19 Nec Corp 光送信器および複合変調器の制御方法
JP2009225020A (ja) * 2008-03-14 2009-10-01 Nec Corp 量子鍵配付の符号化装置と方法
JP2011166292A (ja) * 2010-02-05 2011-08-25 Nec Corp 信号処理システム、量子暗号システム、信号処理方法、及び量子暗号方法
JP2011188043A (ja) * 2010-03-05 2011-09-22 Nec Corp 光通信システムにおける通信装置およびその干渉計同期制御方法
JP2015018109A (ja) * 2013-07-11 2015-01-29 日本電気株式会社 光変調装置および光変調器の駆動方法
JP2015122675A (ja) * 2013-12-25 2015-07-02 日本電気株式会社 変調装置および変調方法
JP2016046557A (ja) * 2014-08-20 2016-04-04 日本電気株式会社 量子暗号鍵配付方法および量子暗号鍵配付装置
JP2018137739A (ja) * 2017-02-20 2018-08-30 株式会社東芝 光量子通信システム
US10574450B2 (en) 2017-02-20 2020-02-25 Kabushiki Kaisha Toshiba Optical quantum communication system
CN109150313A (zh) * 2018-08-15 2019-01-04 上海霍普光通信有限公司 一种低速率光端机的光信号传输方法
CN114844572A (zh) * 2021-02-02 2022-08-02 北京中创为南京量子通信技术有限公司 一种即插即用的量子密钥分发系统
CN114039666A (zh) * 2021-11-26 2022-02-11 济南量子技术研究院 一种强度调制装置及其稳定控制方法、qkd系统
CN115333724A (zh) * 2022-06-30 2022-11-11 北京量子信息科学研究院 量子密钥分发系统的调制装置及制备稳定强度状态的方法

Also Published As

Publication number Publication date
US20100195831A1 (en) 2010-08-05
JP5660169B2 (ja) 2015-01-28
US8718485B2 (en) 2014-05-06
JP5338665B2 (ja) 2013-11-13
JP2013255263A (ja) 2013-12-19
JPWO2009011255A1 (ja) 2010-09-16

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