HK135696A - Optical time domain reflectometry - Google Patents

Optical time domain reflectometry

Info

Publication number
HK135696A
HK135696A HK135696A HK135696A HK135696A HK 135696 A HK135696 A HK 135696A HK 135696 A HK135696 A HK 135696A HK 135696 A HK135696 A HK 135696A HK 135696 A HK135696 A HK 135696A
Authority
HK
Hong Kong
Prior art keywords
time domain
optical time
domain reflectometry
optical
domain reflectometer
Prior art date
Application number
HK135696A
Other languages
English (en)
Inventor
Lutz Christian Blank
David Michael Spirit
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
Priority claimed from GB898914364A external-priority patent/GB8914364D0/en
Priority claimed from GB898915165A external-priority patent/GB8915165D0/en
Application filed by British Telecomm filed Critical British Telecomm
Publication of HK135696A publication Critical patent/HK135696A/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
    • G01M11/319—Reflectometers using stimulated back-scatter, e.g. Raman or fibre amplifiers

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Lasers (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Optical Communication System (AREA)
  • Optical Measuring Cells (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Spectrometry And Color Measurement (AREA)
HK135696A 1989-06-22 1996-07-25 Optical time domain reflectometry HK135696A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB898914364A GB8914364D0 (en) 1989-06-22 1989-06-22 Optical time domain reflectometry
GB898915165A GB8915165D0 (en) 1989-07-01 1989-07-01 Optical time domain reflectometry
PCT/GB1990/000962 WO1990015980A1 (fr) 1989-06-22 1990-06-22 Reflectometrie optique a domaine temps

Publications (1)

Publication Number Publication Date
HK135696A true HK135696A (en) 1996-08-02

Family

ID=26295522

Family Applications (1)

Application Number Title Priority Date Filing Date
HK135696A HK135696A (en) 1989-06-22 1996-07-25 Optical time domain reflectometry

Country Status (13)

Country Link
US (2) US5298965A (fr)
EP (1) EP0478654B1 (fr)
JP (1) JP2957696B2 (fr)
AT (1) ATE97237T1 (fr)
AU (2) AU632597B2 (fr)
CA (1) CA2058957C (fr)
DE (1) DE69004571T2 (fr)
DK (1) DK0478654T3 (fr)
ES (1) ES2045933T3 (fr)
FI (1) FI101746B1 (fr)
GB (1) GB2250654B (fr)
HK (1) HK135696A (fr)
WO (2) WO1990015980A1 (fr)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991012509A1 (fr) * 1990-02-15 1991-08-22 British Telecommunications Public Limited Company Appareil de controle optique
GB2252154A (en) * 1991-01-26 1992-07-29 Stc Plc Testing erbium doped optical fibres.
GB9115453D0 (en) * 1991-07-18 1991-09-04 British Telecomm Fault location in optical systems
USH1436H (en) * 1992-10-13 1995-05-02 Kersey Alan D Interferometric fiber optic sensor configuration with pump-induced phase carrier
DK172234B1 (da) * 1995-05-10 1998-01-26 Dsc Communications As Fremgangsmåder til bestemmelse af støjniveauet under måling på en optisk fiber
GB9715289D0 (en) * 1997-07-22 1997-09-24 King S College London Wavelength measuring system
US6552290B1 (en) * 1999-02-08 2003-04-22 Spectra Systems Corporation Optically-based methods and apparatus for performing sorting coding and authentication using a gain medium that provides a narrowband emission
EP1302006B1 (fr) 2000-07-10 2005-12-21 MPB Technologies Inc. Systeme de pompage en cascade et procede servant a produire une amplification de raman distribuee dans des systemes de communication par fibres optiques
JP3904835B2 (ja) * 2001-01-29 2007-04-11 株式会社日立製作所 光増幅器、光ファイバラマン光増幅器、及び光システム
US6433922B1 (en) 2001-02-26 2002-08-13 Redc Optical Networks Ltd. Apparatus and method for a self adjusting Raman amplifier
US6850360B1 (en) * 2001-04-16 2005-02-01 Bookham, Inc. Raman amplifier systems with diagnostic capabilities
US6526189B1 (en) 2001-06-13 2003-02-25 The United States Of America As Represented By The Secretary Of The Army Scour sensor assembly
US20040208503A1 (en) * 2001-12-06 2004-10-21 William Shieh Systems and methods for detecting faults in optical communication systems
KR100488195B1 (ko) * 2002-01-31 2005-05-10 주식회사 럭스퍼트 광섬유 라만 증폭기
JP3961973B2 (ja) * 2003-03-14 2007-08-22 富士通株式会社 Ｏｔｄｒによる測定方法及び端局装置
GB201207881D0 (en) * 2012-05-04 2012-06-20 Isis Innovation Active chemical sensing using optical microcavity
US9140624B2 (en) 2012-07-03 2015-09-22 Ciena Corporation Systems and methods reducing coherence effect in narrow line-width light sources
US9752955B2 (en) 2014-07-31 2017-09-05 Ii-Vi Incorporated Edge propagating optical time domain reflectometer and method of using the same
US9503181B2 (en) 2015-01-06 2016-11-22 Ii-Vi Incorporated Rare earth-doped fiber amplifier with integral optical metrology functionality
US10284288B2 (en) 2016-02-18 2019-05-07 Apriori Network Systems, Llc Secured fiber link system
US10784969B2 (en) * 2016-02-18 2020-09-22 Apriori Network Systems, Llc. Secured fiber link system
US10763962B2 (en) 2016-02-18 2020-09-01 Apriori Network Systems, Llc. Secured fiber link system
EP3324169A1 (fr) * 2016-11-22 2018-05-23 Xieon Networks S.à r.l. Détection de facteurs de gain et de pertes exagérées de traces otdr unidirectionnelles
EP4136425A4 (fr) * 2020-04-14 2023-09-27 Jabil Inc. Diagnostics de rétro-réflexion optique pour composants micro-optiques
US11671172B1 (en) * 2022-02-25 2023-06-06 Huawei Technologies Co., Ltd. Systems and methods for characterizing an optical fiber in a dense wavelength division multiplexing optical link

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0186299B1 (fr) * 1984-12-13 1990-04-18 Stc Plc Amplificateur optique
GB8512980D0 (en) * 1985-05-22 1985-06-26 Pa Consulting Services Fibre optic transmissions systems
GB2182222B (en) * 1985-10-18 1990-01-24 Stc Plc Optical fibre testing
JPH01142435A (ja) * 1987-11-28 1989-06-05 Nippon Telegr & Teleph Corp <Ntt> 後方散乱光測定装置
US5013907A (en) * 1990-03-27 1991-05-07 Tektronix, Inc. Optical time domain testing instrument

Also Published As

Publication number Publication date
AU5924190A (en) 1991-01-08
CA2058957A1 (fr) 1990-12-23
JPH04506405A (ja) 1992-11-05
US5448059A (en) 1995-09-05
CA2058957C (fr) 1999-05-04
AU632597B2 (en) 1993-01-07
FI916037A0 (fi) 1991-12-20
DK0478654T3 (da) 1994-03-14
FI101746B (fi) 1998-08-14
WO1990015980A1 (fr) 1990-12-27
ATE97237T1 (de) 1993-11-15
GB9126780D0 (en) 1992-03-11
FI101746B1 (fi) 1998-08-14
US5298965A (en) 1994-03-29
ES2045933T3 (es) 1994-01-16
JP2957696B2 (ja) 1999-10-06
EP0478654B1 (fr) 1993-11-10
DE69004571D1 (de) 1993-12-16
GB2250654B (en) 1994-04-20
WO1990015979A1 (fr) 1990-12-27
EP0478654A1 (fr) 1992-04-08
GB2250654A (en) 1992-06-10
AU5839290A (en) 1991-01-08
DE69004571T2 (de) 1994-03-10

Similar Documents

Publication Publication Date Title
GB2250654B (en) Optical time domain reflectometry
ES2073161T3 (es) Aparato de comprobacion optica que comprende un reflectometro optico por dominio de tiempo.
DK285490D0 (da) Fremgangsmaade og apparat til forstaerkning af et optisk signal
GB9915082D0 (en) Optical fibre probe
KR890016375A (ko) 물품 표면의 비균질성 검사방법 및 그 장치
GB2273623B (en) Optical transmission system
DE69006561D1 (de) Doppelkern-Glasfaser als optischer Breitband-Signal-Verstärker.
DE69522276D1 (de) Spektrale Dämpfungsmessung eines optischen Wellenleiters mittels OTDR
ES2086682T3 (es) Sistema de medida de distancias de eco con dispositivo de calibracion.
DE69736073D1 (de) Weg für optische zeitbereichreflektometriemessungen eines optischen übertragungssystems mit optischen isolatoren
ATE191972T1 (de) Verfahren zur bestimmung der dispersionsnullstelle eines lichtwellenleiters
CN207051308U (zh) 一种大视场光子多普勒测速装置
Shimizu et al. Measurement of distributed strain and temperature in a branched optical fiber network by using Brillouin optical time domain reflectometry (OTDR)
GB9715289D0 (en) Wavelength measuring system
Aldoğan et al. Development of a phase-OTDR interrogator based on coherent detection scheme
US5226102A (en) Light-reflection method for transmission-loss measurements in optical fiber lightguides
EP0190859A3 (fr) Réflectomètre cohérent
CN216717401U (zh) 一种布里渊光时域反射仪
CA2043946A1 (fr) Reflectometre temporel optique
CA2069567A1 (fr) Appareil d&#39;amplification optique
DE58907032D1 (de) Verfahren zur Ermittlung der Position der Endfläche eines Lichtwellenleiters.
SU1637012A1 (ru) Устройство дл контрол длительности оптических импульсов
DK0409012T3 (da) Enhed til forstærkning af lyssignaler i optiske fibertransmissionsledninger
Bernard et al. 1.3 μη PORTABLE REFLECTOMETER FOR THE FIELD TEST OF SINGLE-MODE FIBER CABLES
JPS5398857A (en) Measurement method and apparatus of v value of optical fiber

Legal Events

Date Code Title Description
PF Patent in force
PE Patent expired

Effective date: 20100621