DE69316583T2 - Auf sagnac-interferometer basierendes abhörsicheres kommunikationssystem - Google Patents

Auf sagnac-interferometer basierendes abhörsicheres kommunikationssystem

Info

Publication number
DE69316583T2
DE69316583T2 DE69316583T DE69316583T DE69316583T2 DE 69316583 T2 DE69316583 T2 DE 69316583T2 DE 69316583 T DE69316583 T DE 69316583T DE 69316583 T DE69316583 T DE 69316583T DE 69316583 T2 DE69316583 T2 DE 69316583T2
Authority
DE
Germany
Prior art keywords
sagnac
sagnac interferometer
beams
loop
phase
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE69316583T
Other languages
English (en)
Other versions
DE69316583D1 (de
Inventor
Eric Udd
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
McDonnell Douglas Corp
Original Assignee
McDonnell Douglas Corp
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 McDonnell Douglas Corp filed Critical McDonnell Douglas Corp
Publication of DE69316583D1 publication Critical patent/DE69316583D1/de
Application granted granted Critical
Publication of DE69316583T2 publication Critical patent/DE69316583T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
    • H04B10/85—Protection from unauthorised access, e.g. eavesdrop protection
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
    • G01M11/39—Testing of optical devices, constituted by fibre optics or optical waveguides in which light is projected from both sides of the fiber or waveguide end-face

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Communication System (AREA)
  • Burglar Alarm Systems (AREA)
  • Instruments For Measurement Of Length By Optical Means (AREA)
  • Gyroscopes (AREA)
DE69316583T 1992-09-04 1993-08-19 Auf sagnac-interferometer basierendes abhörsicheres kommunikationssystem Expired - Lifetime DE69316583T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/940,618 US5311592A (en) 1986-06-11 1992-09-04 Sagnac interferometer based secure communication system
PCT/US1993/007813 WO1994006224A2 (en) 1992-09-04 1993-08-19 Sagnac interferometer based secured communication system

Publications (2)

Publication Number Publication Date
DE69316583D1 DE69316583D1 (de) 1998-02-26
DE69316583T2 true DE69316583T2 (de) 1998-07-23

Family

ID=25475156

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69316583T Expired - Lifetime DE69316583T2 (de) 1992-09-04 1993-08-19 Auf sagnac-interferometer basierendes abhörsicheres kommunikationssystem

Country Status (8)

Country Link
US (2) US5311592A (de)
EP (1) EP0611504B1 (de)
JP (2) JP3631751B2 (de)
AT (1) ATE162675T1 (de)
AU (1) AU675668B2 (de)
CA (1) CA2121367C (de)
DE (1) DE69316583T2 (de)
WO (1) WO1994006224A2 (de)

Families Citing this family (87)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5311592A (en) * 1986-06-11 1994-05-10 Mcdonnell Douglas Corporation Sagnac interferometer based secure communication system
JP3284507B2 (ja) * 1993-06-28 2002-05-20 富士通株式会社 光通信システム用の光送信装置及び光増幅装置
US5757912A (en) * 1993-09-09 1998-05-26 British Telecommunications Public Limited Company System and method for quantum cryptography
CA2169552C (en) * 1993-09-09 1999-12-07 Paul David Townsend Key distribution in a multiple access network using quantum cryptography
EP0717896B1 (de) * 1993-09-09 1999-01-07 BRITISH TELECOMMUNICATIONS public limited company System und verfahren zur schlüsselverteilung unter verwendung von quanten-kryptographie
GB9320793D0 (en) * 1993-10-08 1993-12-08 Secr Defence Cryptographic receiver
GB9320798D0 (en) * 1993-10-08 1993-12-01 Lucas Ind Plc Fuel injection nozzle
US5493623A (en) * 1994-06-28 1996-02-20 Honeywell Inc. PZT fiber optic modulator having a robust mounting and method of making same
US5636021A (en) * 1995-06-02 1997-06-03 Udd; Eric Sagnac/Michelson distributed sensing systems
US5953421A (en) * 1995-08-16 1999-09-14 British Telecommunications Public Limited Company Quantum cryptography
CA2254767C (en) * 1996-05-22 2002-04-16 British Telecommunications Public Limited Company Method and apparatus for polarisation-insensitive quantum cryptography
US5793871A (en) * 1996-11-26 1998-08-11 California Institute Of Technology Optical encryption interface
US6278657B1 (en) 1998-04-03 2001-08-21 The Board Of Trustees Of The Leland Stanford Junior University Folded sagnac sensor array
US6678211B2 (en) 1998-04-03 2004-01-13 The Board Of Trustees Of The Leland Stanford Junior University Amplified tree structure technology for fiber optic sensor arrays
US6667935B2 (en) 1998-04-03 2003-12-23 The Board Of Trustees Of The Leland Stanford Junior University Apparatus and method for processing optical signals from two delay coils to increase the dynamic range of a sagnac-based fiber optic sensor array
US6034924A (en) * 1998-04-03 2000-03-07 The Board Of Trustees Of The Leland Stanford Junior Univerisity Folded sagnac sensor array
US6097486A (en) * 1998-04-03 2000-08-01 The Board Of Trustees Of The Leland Stanford Junior University Fiber optic acoustic sensor array based on Sagnac interferometer
CA2270095C (en) * 1998-04-28 2003-04-08 Fujikura Ltd. Apparatus for and method of using optical interference of light propagating through an optical fiber loop
FR2786345B1 (fr) * 1998-11-24 2001-02-09 Thomson Csf Dispositif de cryptage quantique
FI112741B (fi) * 1998-11-26 2003-12-31 Nokia Corp Menetelmä ja järjestely RF-signaalien lähettämiseksi ja vastaanottamiseksi tiedonsiirtojärjestelmien erilaisissa radiorajapinnoissa
JP4869480B2 (ja) * 1998-12-18 2012-02-08 フューチャー ファイバー テクノロジーズ ピーティーワイ リミテッド 対向伝播信号法を用いて構造を監視しイベントの位置を見つけるための装置及び方法
US6522749B2 (en) * 1999-01-21 2003-02-18 Nec Laboratories America, Inc. Quantum cryptographic communication channel based on quantum coherence
US6459486B1 (en) 1999-03-10 2002-10-01 Eric Udd Single fiber Sagnac sensing system
US6690890B1 (en) 1999-03-10 2004-02-10 Eric Udd Single fiber Sagnac interferometer based secure communication system
US6728165B1 (en) 1999-10-29 2004-04-27 Litton Systems, Inc. Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors
US6724319B1 (en) 1999-10-29 2004-04-20 Litton Systems, Inc. Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors
US6373563B1 (en) * 1999-11-12 2002-04-16 Agilent Technologies, Inc. Polarization randomized optical source having short coherence length
US7236595B1 (en) 2000-04-18 2007-06-26 Litton Systems, Inc. Integrated optics encryption device
FR2816780B1 (fr) * 2000-11-10 2003-01-31 Thomson Csf Procede et systeme de transmission par cryptographie quantique
US20020131124A1 (en) * 2001-03-16 2002-09-19 Myers Michael H. Photonic wavelength shifting apparatus
JP4462806B2 (ja) * 2002-02-22 2010-05-12 日本電気株式会社 量子暗号鍵配布システム
US20040057734A1 (en) * 2002-09-25 2004-03-25 Lucent Technologies, Inc. Method and system for reducing transmission penalties associated with ghost pulses
US7079731B2 (en) * 2002-10-21 2006-07-18 Prima Luci, Inc. All-optical bistable devices
US6912079B2 (en) * 2003-02-14 2005-06-28 Intel Corporation Method and apparatus for phase shifting an optical beam in an optical device
US6933845B2 (en) 2003-04-08 2005-08-23 Lockheed Martin Corporation Photon intrusion detector
US7667849B2 (en) * 2003-09-30 2010-02-23 British Telecommunications Public Limited Company Optical sensor with interferometer for sensing external physical disturbance of optical communications link
GB0322859D0 (en) * 2003-09-30 2003-10-29 British Telecomm Communication
GB0407386D0 (en) * 2004-03-31 2004-05-05 British Telecomm Monitoring a communications link
US8395782B2 (en) * 2004-06-15 2013-03-12 Optellios, Inc. Detection and location of boundary intrusion, using composite variables derived from phase measurements
US7139476B2 (en) * 2004-06-15 2006-11-21 Optellios, Inc. Distributed fiber sensor with detection and signal processing using polarization state management
EP1776784A4 (de) * 2004-06-15 2007-10-17 Optellios Inc Auf phase ansprechender faseroptischer sensor
GB0421747D0 (en) * 2004-09-30 2004-11-03 British Telecomm Distributed backscattering
WO2006035198A1 (en) * 2004-09-30 2006-04-06 British Telecommunications Public Limited Company Identifying or locating waveguides
US7423964B2 (en) * 2004-11-18 2008-09-09 International Business Machines Corporation Apparatus and method to set the signaling rate of a network disposed within an information storage and retrieval system
ATE498954T1 (de) 2004-12-17 2011-03-15 British Telecomm Netzwerkbeurteilung
GB0427733D0 (en) * 2004-12-17 2005-01-19 British Telecomm Optical system
US7499176B2 (en) * 2007-02-13 2009-03-03 Future Fibre Technologies Pty Ltd Apparatus and method for using a counter-propagating signal method for locating events
JP5060310B2 (ja) * 2005-01-11 2012-10-31 フューチャー ファイバー テクノロジーズ ピーティーワイ リミテッド 事象の位置を決定するための、対向伝搬信号を使用した装置および方法
WO2006092606A1 (en) * 2005-03-04 2006-09-08 British Telecommunications Public Limited Company Acousto-optical modulator arrangement
GB0504579D0 (en) * 2005-03-04 2005-04-13 British Telecomm Communications system
US20070069893A1 (en) * 2005-03-04 2007-03-29 Compudyne Corporation Polarization-based sensor for secure fiber optic network and other security applications
EP1708388A1 (de) 2005-03-31 2006-10-04 British Telecommunications Public Limited Company Verfahren zum Mitteilen von Informationen
WO2006109693A1 (ja) * 2005-04-08 2006-10-19 Eisai R & D Management Co., Ltd. 粘性試料のサンプリング器具、喀痰の均質化処理方法及び微生物の検出方法
EP1713301A1 (de) * 2005-04-14 2006-10-18 BRITISH TELECOMMUNICATIONS public limited company Verfahren und Gerät zur Schallübertragung über eine optische Verbindung
EP1729096A1 (de) * 2005-06-02 2006-12-06 BRITISH TELECOMMUNICATIONS public limited company Verfahren und Vorrichtung zur Ermittlung der Stelle einer Störung in einer optischen Faser
EP1757966A3 (de) * 2005-08-23 2007-12-19 KT Corporation Vorrichtung und Verfahren zur Identifizierung eines optischen Kabels
US7514670B2 (en) * 2005-08-29 2009-04-07 Fiber Sensys Llc Distributed fiber optic sensor with location capability
US20080018884A1 (en) * 2006-01-19 2008-01-24 David Butler Intrusion Detection in Optical Fiber Networks
WO2007096578A1 (en) * 2006-02-24 2007-08-30 British Telecommunications Public Limited Company Sensing a disturbance
EP1826924A1 (de) * 2006-02-24 2007-08-29 BRITISH TELECOMMUNICATIONS public limited company Abtastung einer Störung
WO2007096579A1 (en) * 2006-02-24 2007-08-30 British Telecommunications Public Limited Company Sensing a disturbance
CN101410696B (zh) * 2006-04-03 2011-01-05 英国电讯有限公司 干扰位置的估计
WO2008011058A2 (en) * 2006-07-19 2008-01-24 Fiber Sensys Llc. Fiber-optic mat sensor
EP1992926B1 (de) * 2007-05-16 2015-07-29 Hitachi Metals, Ltd. Optischer Faservibrationssensor
GB2449290B (en) * 2007-05-17 2010-09-22 Toshiba Res Europ Ltd An optical system
US7965944B2 (en) * 2007-05-18 2011-06-21 Corning Incorporated System for passive scrambling and unscrambling of an optical signal
US20090080898A1 (en) * 2007-09-24 2009-03-26 Fiber Sensys Llc Method and apparatus for reducing noise in a fiber-optic sensor
US9784642B2 (en) 2008-09-23 2017-10-10 Onesubsea Ip Uk Limited Redundant optical fiber system and method for remotely monitoring the condition of a pipeline
US8755649B2 (en) * 2009-10-19 2014-06-17 Lockheed Martin Corporation In-line forward/backward fiber-optic signal analyzer
CN103186009A (zh) * 2011-12-27 2013-07-03 中国科学院西安光学精密机械研究所 基于光纤萨格奈克环的飞秒脉冲信噪比提升装置及方法
JP5475837B2 (ja) * 2012-06-22 2014-04-16 日本電信電話株式会社 光パルス発生装置
US9520914B2 (en) 2012-06-25 2016-12-13 Samsung Electronics Co., Ltd. Full-duplex wireless communication system using polarization
US9356691B2 (en) * 2012-08-17 2016-05-31 The Cleveland Electric Laboratories Co. Sagnac interferometer event sensing and locating device
US9255821B1 (en) * 2012-11-15 2016-02-09 Afl Telecommunications Llc Optical fiber vibration sensor
US9954609B2 (en) * 2012-12-31 2018-04-24 Network Integrity Systems Inc. Alarm system for an optical network
CA2930856A1 (en) 2013-12-20 2015-06-25 Halliburton Energy Services, Inc. Downhole em sensing using sagnac interferometer for wellbore monitoring
JP6552060B2 (ja) 2014-04-11 2019-07-31 ロッキード マーティン コーポレーション 非接触光パワー測定のためのシステム及び方法
EP3234500A4 (de) 2014-12-19 2018-07-04 University of Utah Research Foundation Interferometriesystem und zugehörige verfahren
CN105608823B (zh) * 2016-03-14 2020-09-11 北京北邮国安技术股份有限公司 基于主成分分析的光纤安防方法及系统
WO2017223542A1 (en) 2016-06-23 2017-12-28 University Of Utah Research Foundation Interferometry system and associated methods
US11162781B2 (en) 2016-06-23 2021-11-02 University Of Utah Research Foundation Interferometry systems and methods
CN109668621B (zh) * 2019-02-27 2021-05-28 深圳大学 一种干涉型分布式光纤振动传感器
IT201900019373A1 (it) * 2019-10-21 2021-04-21 Univ Degli Studi Padova Metodo di modulazione della polarizzazione di impulsi fotonici per la generazione di chiavi crittografiche quantistiche, e relativo modulatore di polarizzazione
CN111024769B (zh) * 2019-12-17 2020-11-24 中国矿业大学 一种用于掘进机的煤矿矿井超前探测方法
US11913785B2 (en) 2020-04-17 2024-02-27 Huvr, Inc. Extended reach ring interferometer with at least two broadband light sources and signal antifading topology for event detection, location and characterization
CN112398531B (zh) * 2020-11-03 2021-12-10 中国科学院上海天文台 一种乏路径信息的光纤时频传递Sagnac时延修正方法和系统
CN113504030B (zh) * 2021-07-20 2024-03-12 安徽问天量子科技股份有限公司 高速脉冲激光器相位随机化测试装置及方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3647275A (en) * 1970-09-09 1972-03-07 Optronics International Identification system using reference beam coded holograms
US4237550A (en) * 1979-06-08 1980-12-02 International Telephone And Telegraph Corporation Multiuser protected optical data bus distribution systems
US4482980A (en) * 1982-05-03 1984-11-13 General Signal Corporation Hybrid optical/electrical data highway
US5140636A (en) * 1985-05-02 1992-08-18 The United States Of America As Represented By The Secretary Of The Navy Interferometric optical fiber data link
GB8609732D0 (en) * 1986-04-22 1986-05-29 Plessey Co Plc Optical fibre sensing systems
US5311592A (en) * 1986-06-11 1994-05-10 Mcdonnell Douglas Corporation Sagnac interferometer based secure communication system
US5223967A (en) * 1986-06-11 1993-06-29 Mcdonnell Douglas Corporation Secure communications system
US4784453A (en) * 1987-02-02 1988-11-15 Litton Systems, Inc. Backward-flow ladder architecture and method
US4904050A (en) * 1988-08-31 1990-02-27 American Telephone And Telegraph Company, At&T Bell Laboratories Methods of and systems for optical fiber sensing
US5191614A (en) * 1988-11-14 1993-03-02 Mcdonnell Douglas Corporation Secure communication system
US5046848A (en) * 1989-09-08 1991-09-10 Mcdonnell Douglas Corporation Fiber optic detection system using a Sagnac interferometer

Also Published As

Publication number Publication date
JP3631751B2 (ja) 2005-03-23
EP0611504B1 (de) 1998-01-21
EP0611504A1 (de) 1994-08-24
JP2003051784A (ja) 2003-02-21
DE69316583D1 (de) 1998-02-26
AU5081893A (en) 1994-03-29
WO1994006224A2 (en) 1994-03-17
US5311592A (en) 1994-05-10
AU675668B2 (en) 1997-02-13
JPH07505036A (ja) 1995-06-01
JP3535141B2 (ja) 2004-06-07
ATE162675T1 (de) 1998-02-15
CA2121367A1 (en) 1994-03-17
WO1994006224A3 (en) 1994-06-09
CA2121367C (en) 1999-02-09
US5694114A (en) 1997-12-02

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