HK135696A - Optical time domain reflectometry - Google Patents
Optical time domain reflectometryInfo
- 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
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)
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)
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)
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 |
-
1990
- 1990-06-22 CA CA002058957A patent/CA2058957C/fr not_active Expired - Lifetime
- 1990-06-22 US US07/834,293 patent/US5298965A/en not_active Expired - Lifetime
- 1990-06-22 US US07/541,973 patent/US5448059A/en not_active Expired - Lifetime
- 1990-06-22 JP JP2509750A patent/JP2957696B2/ja not_active Expired - Lifetime
- 1990-06-22 DE DE90909768T patent/DE69004571T2/de not_active Expired - Lifetime
- 1990-06-22 WO PCT/GB1990/000962 patent/WO1990015980A1/fr active IP Right Grant
- 1990-06-22 ES ES90909768T patent/ES2045933T3/es not_active Expired - Lifetime
- 1990-06-22 AU AU59241/90A patent/AU632597B2/en not_active Ceased
- 1990-06-22 EP EP90909768A patent/EP0478654B1/fr not_active Expired - Lifetime
- 1990-06-22 WO PCT/GB1990/000961 patent/WO1990015979A1/fr unknown
- 1990-06-22 AT AT90909768T patent/ATE97237T1/de not_active IP Right Cessation
- 1990-06-22 AU AU58392/90A patent/AU5839290A/en not_active Abandoned
- 1990-06-22 DK DK90909768.5T patent/DK0478654T3/da active
-
1991
- 1991-12-17 GB GB9126780A patent/GB2250654B/en not_active Revoked
- 1991-12-20 FI FI916037A patent/FI101746B1/fi active
-
1996
- 1996-07-25 HK HK135696A patent/HK135696A/xx not_active IP Right Cessation
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 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PF | Patent in force | ||
PE | Patent expired |
Effective date: 20100621 |