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WO1990006498A3 - Detecteur de pertes - Google Patents

Detecteur de pertes Download PDF

Info

Publication number
WO1990006498A3
WO1990006498A3 PCT/GB1989/001454 GB8901454W WO9006498A3 WO 1990006498 A3 WO1990006498 A3 WO 1990006498A3 GB 8901454 W GB8901454 W GB 8901454W WO 9006498 A3 WO9006498 A3 WO 9006498A3
Authority
WO
WIPO (PCT)
Prior art keywords
optical fibre
main line
optical
branch lines
loss detection
Prior art date
Application number
PCT/GB1989/001454
Other languages
English (en)
Other versions
WO1990006498A2 (fr
Inventor
Peter John Keeble
Original Assignee
British Telecomm
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 British Telecomm filed Critical British Telecomm
Priority to AT90900263T priority Critical patent/ATE97236T1/de
Priority to DE90900263T priority patent/DE68910695T2/de
Publication of WO1990006498A2 publication Critical patent/WO1990006498A2/fr
Publication of WO1990006498A3 publication Critical patent/WO1990006498A3/fr
Priority to DK911068A priority patent/DK106891D0/da
Priority to HK135596A priority patent/HK135596A/xx

Links

Classifications

    • 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
    • G01M11/31—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers
    • G01M11/3109—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR
    • G01M11/3136—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR for testing of multiple fibers
    • 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
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Glass Compositions (AREA)

Abstract

Est décrit un procédé pour détecter des pertes dans un réseau de fibres optiques ramifiées comprenant une première fibre optique (1) et une pluralité de deuxièmes fibres optiques (3) dont chacune est couplée à la première fibre optique. La première fibre optique (1) constitue une ligne principale et les deuxièmes fibres optiques (3) constituent des dérivations. Un réflecteur respectif (5) est associé à chacune des dérivations (3). Le procédé consiste à émettre une impulsion dans la ligne principale (1) et à observer dans cette dernière les variations d'atténuation des signaux réfléchis renvoyés par les réflecteurs (5).
PCT/GB1989/001454 1988-12-06 1989-12-05 Detecteur de pertes WO1990006498A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT90900263T ATE97236T1 (de) 1988-12-06 1989-12-05 Lichtverlustmessung in optischen fasern.
DE90900263T DE68910695T2 (de) 1988-12-06 1989-12-05 Lichtverlustmessung in optischen fasern.
DK911068A DK106891D0 (da) 1988-12-06 1991-06-04 Tabsdetektion
HK135596A HK135596A (en) 1988-12-06 1996-07-25 Loss detection

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8828408.8 1988-12-06
GB888828408A GB8828408D0 (en) 1988-12-06 1988-12-06 Loss detector

Publications (2)

Publication Number Publication Date
WO1990006498A2 WO1990006498A2 (fr) 1990-06-14
WO1990006498A3 true WO1990006498A3 (fr) 1990-09-07

Family

ID=10647997

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1989/001454 WO1990006498A2 (fr) 1988-12-06 1989-12-05 Detecteur de pertes

Country Status (12)

Country Link
US (1) US5187362A (fr)
EP (1) EP0447439B1 (fr)
JP (1) JP2856904B2 (fr)
AU (1) AU617913B2 (fr)
CA (1) CA2004674C (fr)
DE (1) DE68910695T2 (fr)
DK (1) DK106891D0 (fr)
ES (1) ES2046775T3 (fr)
GB (1) GB8828408D0 (fr)
HK (1) HK135596A (fr)
NZ (1) NZ231638A (fr)
WO (1) WO1990006498A2 (fr)

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US5383015A (en) * 1992-12-22 1995-01-17 At&T Corp. Optical time domain reflectometry measurements on a multi-branch optical network using multiwavelength pass filters
JP3211453B2 (ja) * 1993-01-29 2001-09-25 安藤電気株式会社 光分岐を含む光線路の減衰量測定方法
GB2274753B (en) * 1993-01-29 1997-06-25 Marconi Gec Ltd Optical signal transmission network
US5808761A (en) * 1993-07-15 1998-09-15 Gec-Marconi Limited Path integrity proving in optical communications systems
GB2280326B (en) * 1993-07-15 1997-04-23 Marconi Gec Ltd Optical communication systems
GB9317576D0 (en) * 1993-08-24 1993-10-06 British Aerospace Fibre optic damage detection system
SE503740C2 (sv) * 1994-04-22 1996-08-19 Ericsson Telefon Ab L M Optisk fiber innefattande en reflektor samt sätt att framställa en reflektor i en optisk fiber
GB2292495B (en) * 1994-08-17 1998-03-25 Northern Telecom Ltd Fault location in optical communication systems
US5557400A (en) * 1995-02-15 1996-09-17 Hewlett-Packard Company Multiplexed sensing using optical coherence reflectrometry
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FR2739992B1 (fr) * 1995-10-11 1997-11-14 Gay Philippe Systeme de surveillance, par echometrie, d'un reseau de telecommunication optique en exploitation, a l'aide de reseaux de bragg
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JP3411436B2 (ja) * 1996-01-12 2003-06-03 Ｋｄｄｉ株式会社 光通信線路の監視方法
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JP3402083B2 (ja) * 1996-08-05 2003-04-28 Ｋｄｄｉ株式会社 光ファイバ線路の障害位置検出装置
US5767957A (en) * 1996-12-04 1998-06-16 International Business Machines Corporation Testing an optical cable having multiple fibers by the application of a light pulse to all fibers through optical jumpers of incrementally varying lengths
JP3439323B2 (ja) * 1997-06-18 2003-08-25 安藤電気株式会社 多段多分岐光線路の試験装置
EP0936457B1 (fr) * 1998-02-16 2000-12-20 Hewlett-Packard Company Localisation de défauts dans des systèmes à fibres optiques
CN1174566C (zh) * 1998-02-23 2004-11-03 住友电气工业株式会社 分支线路监视系统和分支线路监视方法
DE19808601A1 (de) * 1998-02-28 1999-09-09 Deutsche Telekom Ag Messverfahren für Einzelfasern von Kabeln
EP0980151B1 (fr) * 1998-07-09 2001-01-03 Wandel & Goltermann Management Holding GmbH Procédé de mesure d'atténuation dans des lignes de transmission numérique
JP4055306B2 (ja) * 1999-11-08 2008-03-05 富士通株式会社 伝送路の障害検出装置及び方法
FR2844051B1 (fr) * 2002-08-30 2004-11-12 Nexans Systeme pour le controle par reflectometrie dans le domaine temporel (otdr) d'un reseau optique
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GB0322859D0 (en) * 2003-09-30 2003-10-29 British Telecomm Communication
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
GB0407386D0 (en) * 2004-03-31 2004-05-05 British Telecomm Monitoring a communications link
KR100593607B1 (ko) * 2004-05-13 2006-06-28 학교법인 동국대학교 강유전 반도체 물질을 포함하는 비휘발성 반도체 메모리소자 및 그 반도체 메모리 소자의 데이터 기입, 소거 및판독 방법
US7280189B2 (en) * 2004-07-08 2007-10-09 Weller Whitney T Method and apparatus for testing optical fiber based networks
US20060007426A1 (en) * 2004-07-08 2006-01-12 Weller Whitney T Novel Algorithm, Method and apparatus for In-Service Testing of Passive Optical Networks (PON) and Fiber to the Premise (FTTP) Networks
US7493040B1 (en) * 2004-07-15 2009-02-17 Nortel Networks Limited Method and apparatus for securing fiber in an optical network
GB0421747D0 (en) * 2004-09-30 2004-11-03 British Telecomm Distributed backscattering
US7848645B2 (en) * 2004-09-30 2010-12-07 British Telecommunications Public Limited Company Identifying or locating waveguides
GB0427733D0 (en) * 2004-12-17 2005-01-19 British Telecomm Optical system
US8045174B2 (en) 2004-12-17 2011-10-25 British Telecommunications Public Limited Company Assessing a network
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GB0504579D0 (en) * 2005-03-04 2005-04-13 British Telecomm Communications system
US7697795B2 (en) * 2005-03-04 2010-04-13 British Telecommunications Public Limited Company Acoustic modulation
EP1708388A1 (fr) 2005-03-31 2006-10-04 British Telecommunications Public Limited Company Communication d'information
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EP1713301A1 (fr) * 2005-04-14 2006-10-18 BRITISH TELECOMMUNICATIONS public limited company Procédé et dispositif pour communiquer du son sur une liaison optique
EP1729096A1 (fr) * 2005-06-02 2006-12-06 BRITISH TELECOMMUNICATIONS public limited company Méthode et dispositif de détermination de la position d'une perturbation dans une fibre optique
GB0514680D0 (en) * 2005-07-16 2005-08-24 Tyco Electronics Raychem Nv PCB optical network monitor
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US20070154215A1 (en) * 2006-01-05 2007-07-05 Tellabs Bedford, Inc. Method and apparatus for detecting optical reflections in an optical network
ATE505861T1 (de) * 2006-02-24 2011-04-15 British Telecomm Erfassen einer störung
EP1826924A1 (fr) * 2006-02-24 2007-08-29 BRITISH TELECOMMUNICATIONS public limited company Sensation d'une perturbation
EP1987317B1 (fr) * 2006-02-24 2013-07-17 BRITISH TELECOMMUNICATIONS public limited company Détection d'une perturbation
WO2007113527A1 (fr) * 2006-04-03 2007-10-11 British Telecommunications Public Limited Company Évaluation de la position d'une perturbation
CA2723462A1 (fr) * 2008-04-21 2009-10-29 Oplink Communications, Inc. Surveillance de reseaux de fibres
WO2010043056A1 (fr) * 2008-10-17 2010-04-22 Exfo Electro-Optical Engineering Inc. Procédé et appareil de dérivation de paramètres de trajets optiques dans des réseaux optiques utilisant un otdr à deux longueurs d'onde et un élément réfléchissant dépendant d'une longueur d'onde
GB0823688D0 (en) 2008-12-31 2009-02-04 Tyco Electronics Raychem Nv Unidirectional absolute optical attenuation measurement with OTDR
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CN102118658B (zh) * 2009-12-31 2014-02-19 华为技术有限公司 分光器端口识别的方法和装置
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GB2499386A (en) * 2012-02-10 2013-08-21 United Technologists Europe Ltd OTDR Mapping Method using an optical reflector at a specific customer fibre end to increase the amplitude relative to other reflection events in the trace
CN102721646B (zh) * 2012-06-28 2014-06-25 中国计量学院 远距离挥发性有机物多点检测传感装置
CN102868447B (zh) * 2012-09-24 2015-07-15 深圳太辰光通信股份有限公司 一种光纤光栅追踪器与光纤线路故障检测方法
JP6085573B2 (ja) * 2014-01-14 2017-02-22 日本電信電話株式会社 分岐光線路の特性解析装置および分岐光線路の特性解析方法
US9900086B2 (en) 2014-01-31 2018-02-20 Afl Telecommunications Llc Shooting long fiber spans with high loss fiber
AT515815B1 (de) * 2014-06-12 2017-05-15 Fachhochschule Technikum Wien Verfahren und Vorrichtung zur Detektion von Abhörversuchen bei optischer Freiraum Datenübertragung
CN104113373A (zh) * 2014-07-22 2014-10-22 桂林聚联科技有限公司 一种判断光纤连接点状态的方法
US9240836B1 (en) * 2014-08-08 2016-01-19 Verizon Patent And Licensing Inc. OTDR fault tracing in optical networks
JP5811259B2 (ja) * 2014-12-24 2015-11-11 住友電気工業株式会社 光線路監視システム
US11047766B2 (en) * 2018-04-11 2021-06-29 Afl Telecommunications Llc Systems and methods for identification and testing of optical fibers
CN112491465A (zh) * 2019-08-23 2021-03-12 中兴通讯股份有限公司 光纤线路检测控制方法、装置、设备及可读存储介质
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Citations (3)

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Publication number Priority date Publication date Assignee Title
DE2620357A1 (de) * 1976-05-06 1977-11-17 Aeg Telefunken Kabelwerke Daempfungsmessung in lichtleitern
WO1987002531A1 (fr) * 1985-10-15 1987-04-23 Plessey Overseas Limited Systeme de communication optique et son terminal utilisateur
FR2597986A1 (fr) * 1986-04-28 1987-10-30 Foucault Marc Dispositif a coupleur optique, pour calibrer ou etalonner un reflectometre, systeme d'echometrie et procedes de caracterisation d'un coupleur et de mesure d'attenuations utilisant ce dispositif

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Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2620357A1 (de) * 1976-05-06 1977-11-17 Aeg Telefunken Kabelwerke Daempfungsmessung in lichtleitern
WO1987002531A1 (fr) * 1985-10-15 1987-04-23 Plessey Overseas Limited Systeme de communication optique et son terminal utilisateur
FR2597986A1 (fr) * 1986-04-28 1987-10-30 Foucault Marc Dispositif a coupleur optique, pour calibrer ou etalonner un reflectometre, systeme d'echometrie et procedes de caracterisation d'un coupleur et de mesure d'attenuations utilisant ce dispositif

Also Published As

Publication number Publication date
WO1990006498A2 (fr) 1990-06-14
HK135596A (en) 1996-08-02
DK106891A (da) 1991-06-04
DK106891D0 (da) 1991-06-04
AU617913B2 (en) 1991-12-05
JP2856904B2 (ja) 1999-02-10
AU4751090A (en) 1990-06-26
CA2004674C (fr) 1997-03-04
NZ231638A (en) 1992-02-25
US5187362A (en) 1993-02-16
CA2004674A1 (fr) 1990-06-06
EP0447439B1 (fr) 1993-11-10
DE68910695T2 (de) 1994-05-05
DE68910695D1 (de) 1993-12-16
EP0447439A1 (fr) 1991-09-25
ES2046775T3 (es) 1994-02-01
GB8828408D0 (en) 1989-01-05
JPH04502210A (ja) 1992-04-16

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