HK1003144A1 - A device and a method for distinguishing faults in an optical transmission system - Google Patents

A device and a method for distinguishing faults in an optical transmission system

Info

Publication number
HK1003144A1
HK1003144A1 HK98102270A HK98102270A HK1003144A1 HK 1003144 A1 HK1003144 A1 HK 1003144A1 HK 98102270 A HK98102270 A HK 98102270A HK 98102270 A HK98102270 A HK 98102270A HK 1003144 A1 HK1003144 A1 HK 1003144A1
Authority
HK
Hong Kong
Prior art keywords
transmission system
optical transmission
faults
distinguishing
distinguishing faults
Prior art date
Application number
HK98102270A
Other languages
English (en)
Inventor
Tomita Nobuo
Takasugi Hidetoshi
Suzuki Hideki
Nakamura Takashi
Original Assignee
Nippon Telegraph & Telephone
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 Nippon Telegraph & Telephone filed Critical Nippon Telegraph & Telephone
Publication of HK1003144A1 publication Critical patent/HK1003144A1/xx

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4246—Bidirectionally operating package structures
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29346—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by wave or beam interference
    • G02B6/29361—Interference filters, e.g. multilayer coatings, thin film filters, dichroic splitters or mirrors based on multilayers, WDM filters
    • G02B6/29368—Light guide comprising the filter, e.g. filter deposited on a fibre end
    • 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
    • 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)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)
HK98102270A 1989-12-11 1998-03-18 A device and a method for distinguishing faults in an optical transmission system HK1003144A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP32094689 1989-12-11
JP23273490 1990-09-03

Publications (1)

Publication Number Publication Date
HK1003144A1 true HK1003144A1 (en) 1998-10-09

Family

ID=26530628

Family Applications (1)

Application Number Title Priority Date Filing Date
HK98102270A HK1003144A1 (en) 1989-12-11 1998-03-18 A device and a method for distinguishing faults in an optical transmission system

Country Status (6)

Country Link
US (1) US5177354A (xx)
EP (1) EP0432734B1 (xx)
KR (1) KR0123893B1 (xx)
CA (1) CA2031870C (xx)
DE (1) DE69031588T2 (xx)
HK (1) HK1003144A1 (xx)

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JP2871893B2 (ja) * 1991-06-03 1999-03-17 古河電気工業株式会社 フィルタ付き分岐結合器
GB9202564D0 (en) * 1992-02-07 1992-03-25 Marconi Gec Ltd Optical signal transmission network
US5258613A (en) * 1992-10-29 1993-11-02 Hirose Electric Co., Ltd. Apparatus for mounting optical fiber in ferrule
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
US5453827A (en) * 1993-02-24 1995-09-26 Dicon Fiberoptics Fiberoptic in-line filter and technique for measuring the transmission quality of an optical fiber through the use of a fiberoptic in-line filter
US5808761A (en) * 1993-07-15 1998-09-15 Gec-Marconi Limited Path integrity proving in optical communications systems
DE4332501A1 (de) * 1993-09-24 1995-03-30 Siemens Ag Sensorsystem für sich dynamisch ändernde Meßgrößen und zugehöriges Betriebsverfahren
NL9301903A (nl) * 1993-11-04 1995-06-01 Nederland Ptt Plaatsonafhankelijke toepassing van een op correlatie gebaseerde OTDR-techniek in een vertakt optische vezel-netwerk in bedrijf.
GB2292495B (en) * 1994-08-17 1998-03-25 Northern Telecom Ltd Fault location in optical communication systems
US5589933A (en) * 1994-10-24 1996-12-31 Photon Kinetics, Inc. Optical fiber test instrument with mechanically positioned attenuator
US5565976A (en) * 1995-01-18 1996-10-15 Abbott Laboratories Method and apparatus for detecting and compensating for a kink in an optic fiber
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
DE19830729A1 (de) * 1998-07-09 2000-01-20 Deutsche Telekom Ag Verfahren und Anordnung zur Durchführung von Kontroll- und Überwachungsmessungen an optischen Übertragungsstrecken
US8750702B1 (en) * 2002-06-21 2014-06-10 Rockstar Consortium Us Lp Passive optical loopback
WO2005003714A1 (ja) * 2003-07-07 2005-01-13 Anritsu Corporation 光線路の障害探索をユーザ光端末側から行う光線路の試験システム
US7301612B2 (en) * 2005-08-09 2007-11-27 The Boeing Company Optical network and method including self-test capability
CN102369677B (zh) * 2009-02-20 2016-01-20 泰科电子瑞侃有限公司 光纤网络测试装置
EP2264420A1 (en) * 2009-06-19 2010-12-22 Acterna, LLC Optical reflective marker adaptor for a patch cord in OTDR applications
CN101917226B (zh) * 2010-08-23 2016-03-02 中兴通讯股份有限公司 一种在无源光网络中进行光纤故障诊断的方法及光线路终端
US9002198B2 (en) * 2011-01-07 2015-04-07 Panasonic Intellectual Property Management Co., Ltd. Optical transmission system
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
JP2015170871A (ja) * 2014-03-04 2015-09-28 富士通株式会社 光伝送システム及び光受信装置
EP2961085B1 (en) * 2014-06-26 2016-08-17 ADVA Optical Networking SE An optical coupler device and an optical monitoring device for monitoring one or more optical point-to-point transmission links
US9240836B1 (en) * 2014-08-08 2016-01-19 Verizon Patent And Licensing Inc. OTDR fault tracing in optical networks
EP3189601B1 (en) * 2014-09-03 2023-08-02 British Telecommunications public limited company Optical network fault identification
CN105792029B (zh) * 2014-12-24 2020-08-04 南京中兴软件有限责任公司 一种智能odn标识系统及装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3981592A (en) * 1975-03-31 1976-09-21 The United States Of America As Represented By The Secretary Of The Navy System for locating breaks in fiber optic filaments
JPS53119068A (en) * 1977-03-28 1978-10-18 Nippon Telegr & Teleph Corp <Ntt> Fault point aiming system of optical cable
DE3012184A1 (de) * 1980-03-28 1981-10-08 Siemens AG, 1000 Berlin und 8000 München Lichtwellenleiterverzweigung
US4373775A (en) * 1980-06-23 1983-02-15 International Telephone And Telegraph Corporation Fiber dichroic coupler
JPS59196438A (ja) * 1983-04-22 1984-11-07 Nippon Telegr & Teleph Corp <Ntt> 光伝送路の障害探索方法
EP0117868B1 (en) * 1982-05-06 1989-10-04 Nippon Telegraph and Telephone Corporation Method and device for separating position of fault in light transmission line
JPS60121829A (ja) * 1983-12-05 1985-06-29 Nippon Telegr & Teleph Corp <Ntt> 障害区間探索用端局装置
US4774407A (en) * 1986-03-04 1988-09-27 Allen-Bradley Company, Inc. Fiber optic switching system with link monitoring
US4749247A (en) * 1986-04-03 1988-06-07 The Mitre Corporation Self-monitoring fiber optic link
JPH0828680B2 (ja) * 1987-07-23 1996-03-21 国際電信電話株式会社 双方向光ファイバ通信系の障害点監視方式
US4848999A (en) * 1987-10-13 1989-07-18 Texas A & M University System Method for producing reflective taps in optical fibers and applications thereof
US4813756A (en) * 1988-01-25 1989-03-21 Bell Communications Research, Inc. Etalon filters for optical channel selection in wavelength division multiplexed fiber systems
IT1216609B (it) * 1988-04-21 1990-03-08 Pirelli Cavi Spa Sensore ottico di posizione.
US4899045A (en) * 1988-05-24 1990-02-06 Hi-Shear Corporation Multiple channel fiber optic continuity test system

Also Published As

Publication number Publication date
KR910013775A (ko) 1991-08-08
CA2031870A1 (en) 1991-06-12
US5177354A (en) 1993-01-05
EP0432734B1 (en) 1997-10-15
DE69031588T2 (de) 1998-03-05
CA2031870C (en) 1995-08-08
KR0123893B1 (ko) 1997-12-01
EP0432734A3 (en) 1992-12-23
EP0432734A2 (en) 1991-06-19
DE69031588D1 (de) 1997-11-20

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Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20081211