FI101746B1 - Optinen aika-alueen reflektometri - Google Patents

Optinen aika-alueen reflektometri

Info

Publication number
FI101746B1
FI101746B1 FI916037A FI916037A FI101746B1 FI 101746 B1 FI101746 B1 FI 101746B1 FI 916037 A FI916037 A FI 916037A FI 916037 A FI916037 A FI 916037A FI 101746 B1 FI101746 B1 FI 101746B1
Authority
FI
Finland
Prior art keywords
optical time
reflectometer
time domain
circuit
optical
Prior art date
Application number
FI916037A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI916037A0 (fi
FI101746B (fi
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 FI916037A0 publication Critical patent/FI916037A0/fi
Application granted granted Critical
Publication of FI101746B publication Critical patent/FI101746B/fi
Publication of FI101746B1 publication Critical patent/FI101746B1/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
    • G01M11/319—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)
FI916037A 1989-06-22 1991-12-20 Optinen aika-alueen reflektometri FI101746B1 (fi)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
GB898914364A GB8914364D0 (en) 1989-06-22 1989-06-22 Optical time domain reflectometry
GB8914364 1989-06-22
GB898915165A GB8915165D0 (en) 1989-07-01 1989-07-01 Optical time domain reflectometry
GB8915165 1989-07-01
GB9000962 1990-01-16
PCT/GB1990/000962 WO1990015980A1 (fr) 1989-06-22 1990-06-22 Reflectometrie optique a domaine temps

Publications (3)

Publication Number Publication Date
FI916037A0 FI916037A0 (fi) 1991-12-20
FI101746B FI101746B (fi) 1998-08-14
FI101746B1 true FI101746B1 (fi) 1998-08-14

Family

ID=26295522

Family Applications (1)

Application Number Title Priority Date Filing Date
FI916037A FI101746B1 (fi) 1989-06-22 1991-12-20 Optinen aika-alueen reflektometri

Country Status (13)

Country Link
US (2) US5298965A (fr)
EP (1) EP0478654B1 (fr)
JP (1) JP2957696B2 (fr)
AT (1) ATE97237T1 (fr)
AU (2) AU5839290A (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
AU636719B2 (en) * 1990-02-15 1993-05-06 British Telecommunications Public Limited Company Optical test apparatus
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
AU2001275629A1 (en) 2000-07-10 2002-01-21 Mpb Technologies Inc. Cascaded pumping system for distributed raman amplification in optical fiber telecommunication systems
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
US10784969B2 (en) * 2016-02-18 2020-09-22 Apriori Network Systems, Llc. Secured fiber link system
US10284288B2 (en) 2016-02-18 2019-05-07 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
US20230160779A1 (en) * 2020-04-14 2023-05-25 Jabiil Inc. Optical back reflection diagnostics for micro optical components
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
DE3577236D1 (de) * 1984-12-13 1990-05-23 Stc Plc Optischer verstaerker.
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
EP0478654A1 (fr) 1992-04-08
AU5924190A (en) 1991-01-08
DE69004571D1 (de) 1993-12-16
WO1990015979A1 (fr) 1990-12-27
US5298965A (en) 1994-03-29
FI916037A0 (fi) 1991-12-20
ES2045933T3 (es) 1994-01-16
DE69004571T2 (de) 1994-03-10
FI101746B (fi) 1998-08-14
DK0478654T3 (da) 1994-03-14
HK135696A (en) 1996-08-02
EP0478654B1 (fr) 1993-11-10
JP2957696B2 (ja) 1999-10-06
WO1990015980A1 (fr) 1990-12-27
GB2250654A (en) 1992-06-10
AU632597B2 (en) 1993-01-07
CA2058957A1 (fr) 1990-12-23
GB9126780D0 (en) 1992-03-11
ATE97237T1 (de) 1993-11-15
US5448059A (en) 1995-09-05
JPH04506405A (ja) 1992-11-05
CA2058957C (fr) 1999-05-04
GB2250654B (en) 1994-04-20
AU5839290A (en) 1991-01-08

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