IL146075A - Intrinsic security of fiber optic communication links - Google Patents

Intrinsic security of fiber optic communication links

Info

Publication number
IL146075A
IL146075A IL14607500A IL14607500A IL146075A IL 146075 A IL146075 A IL 146075A IL 14607500 A IL14607500 A IL 14607500A IL 14607500 A IL14607500 A IL 14607500A IL 146075 A IL146075 A IL 146075A
Authority
IL
Israel
Prior art keywords
waveguide
sensing
sensing signal
coupler
signal
Prior art date
Application number
IL14607500A
Other languages
English (en)
Hebrew (he)
Other versions
IL146075A0 (en
Inventor
Edward E Tapanes
Original Assignee
Future Fibre Tech Pty Ltd
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 Future Fibre Tech Pty Ltd filed Critical Future Fibre Tech Pty Ltd
Publication of IL146075A0 publication Critical patent/IL146075A0/xx
Publication of IL146075A publication Critical patent/IL146075A/en

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
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
    • G01M5/0091—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by using electromagnetic excitation or detection
    • 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
    • G01M11/33—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter being disposed at one fibre or waveguide end-face, and a light receiver at the other end-face
    • G01M11/335—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter being disposed at one fibre or waveguide end-face, and a light receiver at the other end-face using two or more input wavelengths
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
    • G01M5/0025—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings of elongated objects, e.g. pipes, masts, towers or railways
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
    • G01M5/0033—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining damage, crack or wear
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
    • G01M5/0066—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by exciting or detecting vibration or acceleration
    • 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
    • H04B10/25—Arrangements specific to fibre transmission

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Optical Communication System (AREA)
  • Optical Transform (AREA)
IL14607500A 1999-05-03 2000-04-28 Intrinsic security of fiber optic communication links IL146075A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPQ0126A AUPQ012699A0 (en) 1999-05-03 1999-05-03 Intrinsic securing of fibre optic communication links
PCT/AU2000/000382 WO2000067400A1 (en) 1999-05-03 2000-04-28 Intrinsic securing of fibre optic communication links

Publications (2)

Publication Number Publication Date
IL146075A0 IL146075A0 (en) 2002-07-25
IL146075A true IL146075A (en) 2004-12-15

Family

ID=3814333

Family Applications (1)

Application Number Title Priority Date Filing Date
IL14607500A IL146075A (en) 1999-05-03 2000-04-28 Intrinsic security of fiber optic communication links

Country Status (8)

Country Link
EP (1) EP1175743A4 (ko)
JP (1) JP2002543738A (ko)
KR (1) KR20020026863A (ko)
CN (1) CN1349689A (ko)
AU (1) AUPQ012699A0 (ko)
CA (1) CA2371576A1 (ko)
IL (1) IL146075A (ko)
WO (1) WO2000067400A1 (ko)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000037925A1 (en) * 1998-12-18 2000-06-29 Future Fibre Technologies Pty Ltd Apparatus and method for monitoring a structure using a counter-propagating signal method for locating events
AUPR357801A0 (en) 2001-03-07 2001-04-05 Future Fibre Technologies Pty Ltd Perimeter security system and perimeter monitoring method
KR100857522B1 (ko) * 2002-01-04 2008-09-08 퓨쳐 파이브레 테크놀로지스 피티와이 엘티디 주변 보안 시스템 및 주변 모니터링 방법
EP1385277B1 (en) * 2002-07-22 2005-06-08 Agilent Technologies, Inc. - a Delaware corporation - Transmission of supervisory data in an optical communication system
US6934426B2 (en) 2002-10-09 2005-08-23 Senstar-Stellar Corporation Fiber optic security sensor and system with integrated secure data transmission and power cables
KR101032222B1 (ko) 2003-07-18 2011-05-02 네트워크 인테그리티 시스템스 인코퍼레이티드 다중모드 광섬유 침입탐지 시스템
US7376293B2 (en) 2003-07-18 2008-05-20 Network Intergrity Systems Inc. Remote location of active section of fiber in a multimode intrusion detection system
US7403674B2 (en) 2003-07-18 2008-07-22 Network Integrity Systems Inc. Intrusion detection system for a multimode optical fiber using a bulk optical wavelength division multiplexer for maintaining modal power distribution
US7403675B2 (en) 2003-07-18 2008-07-22 Network Integrity Systems Inc. Method of high order mode excitation for multimode intrusion detection
CN100460913C (zh) * 2006-06-30 2009-02-11 中国石油天然气集团公司 光纤安全预警相位控制系统
CN101098195B (zh) * 2006-06-30 2011-10-05 中国石油天然气集团公司 光纤安全预警系统
US7965944B2 (en) * 2007-05-18 2011-06-21 Corning Incorporated System for passive scrambling and unscrambling of an optical signal
US8928868B2 (en) * 2011-05-31 2015-01-06 Nippon Telegraph And Telephone Corporation Optical fiber line characteristic analysis apparatus and analysis method thereof
CN106972976B (zh) * 2017-05-19 2019-09-27 烽火通信科技股份有限公司 智能光配线系统及用光纤传感器取代电子标签的实现方法
CN110261671B (zh) * 2019-07-15 2021-07-27 中国计量科学研究院 一种微波功率量子测量方法和真空腔体测量装置
DE102020100058A1 (de) * 2020-01-03 2021-07-08 Leoni Kabel Gmbh Faseroptische Temperaturmessung mit Quantendot-Nanokomposit

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2453403A1 (fr) * 1979-04-06 1980-10-31 Bertin & Cie Procede et dispositif de verification d'une fibre optique transmettant une information
FR2520114A1 (fr) * 1982-01-18 1983-07-22 Lignes Telegraph Telephon Dispositif de localisation d'une cassure d'une fibre optique et utilisation d'un tel dispositif
GB8709900D0 (en) * 1987-04-27 1987-08-05 British Telecomm Surveillance system
GB8805844D0 (en) * 1988-03-11 1988-04-13 British Telecomm Detection of stress applied to optical fibre
US4965856A (en) * 1989-05-23 1990-10-23 Arbus Inc. Secure optical-fiber communication system
US5455698A (en) * 1989-12-27 1995-10-03 Mcdonnell Douglas Corporation Secure communication alarm system
DE4427514A1 (de) * 1994-08-03 1996-02-08 Siemens Ag Verfahren zum Überwachen einer Lichtwellenleiter-Kabelanlage
US5751454A (en) * 1996-10-10 1998-05-12 Northern Telecom Limited Wavelength bypassed ring networks

Also Published As

Publication number Publication date
JP2002543738A (ja) 2002-12-17
KR20020026863A (ko) 2002-04-12
CN1349689A (zh) 2002-05-15
IL146075A0 (en) 2002-07-25
EP1175743A4 (en) 2003-07-30
AUPQ012699A0 (en) 1999-05-27
CA2371576A1 (en) 2000-11-09
WO2000067400A1 (en) 2000-11-09
EP1175743A1 (en) 2002-01-30

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Legal Events

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