FI940434A - Optisen signaalin siirtoverkko - Google Patents

Optisen signaalin siirtoverkko Download PDF

Info

Publication number
FI940434A
FI940434A FI940434A FI940434A FI940434A FI 940434 A FI940434 A FI 940434A FI 940434 A FI940434 A FI 940434A FI 940434 A FI940434 A FI 940434A FI 940434 A FI940434 A FI 940434A
Authority
FI
Finland
Prior art keywords
optical signal
signal transmission
transmission network
network
optical
Prior art date
Application number
FI940434A
Other languages
English (en)
Swedish (sv)
Other versions
FI940434A0 (fi
Inventor
Simon Paul Shipley
Original Assignee
Plessey 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 Plessey Telecomm filed Critical Plessey Telecomm
Publication of FI940434A0 publication Critical patent/FI940434A0/fi
Publication of FI940434A publication Critical patent/FI940434A/fi

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
    • G01M11/3154—Details of the opto-mechanical connection, e.g. connector or repeater
    • 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)
FI940434A 1993-01-29 1994-01-28 Optisen signaalin siirtoverkko FI940434A (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9301753A GB2274753B (en) 1993-01-29 1993-01-29 Optical signal transmission network

Publications (2)

Publication Number Publication Date
FI940434A0 FI940434A0 (fi) 1994-01-28
FI940434A true FI940434A (fi) 1994-07-30

Family

ID=10729506

Family Applications (1)

Application Number Title Priority Date Filing Date
FI940434A FI940434A (fi) 1993-01-29 1994-01-28 Optisen signaalin siirtoverkko

Country Status (6)

Country Link
US (1) US5491574A (fi)
EP (1) EP0622912B1 (fi)
CA (1) CA2114604A1 (fi)
DE (1) DE69429031T2 (fi)
FI (1) FI940434A (fi)
GB (1) GB2274753B (fi)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5790293A (en) * 1995-10-27 1998-08-04 Lucent Technologies Inc. Systems for monitoring optical path characteristics in an optical communication system
US5760940A (en) * 1995-10-27 1998-06-02 Lucent Technologies Inc. Methods for monitoring optical path characteristics in an optical communication system
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
JPH11261617A (ja) * 1998-03-09 1999-09-24 Fujitsu Ltd 光加入者ネットワーク及び遅延測定方法
US6519026B1 (en) * 1999-08-06 2003-02-11 Lucent Technologies Inc. Optical time-domain reflectometer (OTDR)
CA2374437C (en) 1999-10-28 2007-02-13 Tollgrade Communications, Inc. Method and apparatus for delay-line time-domain reflectometry
WO2008092397A1 (fr) 2007-01-26 2008-08-07 Huawei Technologies Co., Ltd. Procédé de repérage de point d'événement de fibre, et réseau optique et équipement de réseau associés
US8687957B2 (en) * 2008-10-17 2014-04-01 Exfo Inc. Method and apparatus for deriving parameters of optical paths in optical networks using two-wavelength OTDR and a wavelength-dependent reflective element
GB0823688D0 (en) * 2008-12-31 2009-02-04 Tyco Electronics Raychem Nv Unidirectional absolute optical attenuation measurement with OTDR
CN102244539B (zh) 2010-05-11 2014-09-17 华为技术有限公司 分支光纤检测方法及系统、无源光网络和分光器
US9435711B2 (en) * 2011-10-26 2016-09-06 Ezconn Corporation OTDR light reflection structure of optical sub-assembly for transceivers of PON system
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
WO2016034457A1 (en) * 2014-09-03 2016-03-10 British Telecommunications Public Limited Company Optical network fault identification

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3380681D1 (en) * 1982-05-06 1989-11-09 Nippon Telegraph & Telephone Method and device for separating position of fault in light transmission line
US4649529A (en) * 1985-12-02 1987-03-10 Exxon Production Research Co. Multi-channel fiber optic sensor system
CA1278714C (en) * 1986-02-06 1991-01-08 Hideki Isono Optical branching filter
GB8727846D0 (en) * 1987-11-27 1987-12-31 British Telecomm Optical communications network
GB8828408D0 (en) * 1988-12-06 1989-01-05 British Telecomm Loss detector
US4911515A (en) * 1988-12-22 1990-03-27 Northern Telecom Limited Optical fiber communications system with optical fiber monitoring
KR0123893B1 (ko) * 1989-11-11 1997-12-01 마사씨 코지마 광전송로의 고장위치를 판별하는 방법 및 이 방법에 사용하는 광필터형 판별기
US5093568A (en) * 1990-12-14 1992-03-03 John Maycock Monitoring system for fiber optic cables utilizing an OTDR for detection of signal loss and automatic location of faults in the cable
JP2804633B2 (ja) * 1991-02-12 1998-09-30 日本電信電話株式会社 光折り返し／媒体試験器
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
US5283845A (en) * 1992-07-20 1994-02-01 Jds Fitel Inc. Multi-port tunable fiber-optic filter

Also Published As

Publication number Publication date
DE69429031T2 (de) 2002-06-06
GB2274753B (en) 1997-06-25
GB9301753D0 (en) 1993-03-17
FI940434A0 (fi) 1994-01-28
GB2274753A (en) 1994-08-03
EP0622912B1 (en) 2001-11-14
US5491574A (en) 1996-02-13
CA2114604A1 (en) 1994-07-30
EP0622912A1 (en) 1994-11-02
DE69429031D1 (de) 2001-12-20

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