DE3868491D1 - Otdr mit automatischer messfunktion von fehlern in optischer faser. - Google Patents
Otdr mit automatischer messfunktion von fehlern in optischer faser.Info
- Publication number
- DE3868491D1 DE3868491D1 DE8888119720T DE3868491T DE3868491D1 DE 3868491 D1 DE3868491 D1 DE 3868491D1 DE 8888119720 T DE8888119720 T DE 8888119720T DE 3868491 T DE3868491 T DE 3868491T DE 3868491 D1 DE3868491 D1 DE 3868491D1
- Authority
- DE
- Germany
- Prior art keywords
- otdr
- faults
- optical fiber
- automatic measuring
- measuring function
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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
- G01M11/3145—Details of the optoelectronics or data analysis
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
- Light Guides In General And Applications Therefor (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62297803A JPH01141331A (ja) | 1987-11-27 | 1987-11-27 | 光パルス試験器 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3868491D1 true DE3868491D1 (de) | 1992-03-26 |
Family
ID=17851372
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8888119720T Expired - Fee Related DE3868491D1 (de) | 1987-11-27 | 1988-11-25 | Otdr mit automatischer messfunktion von fehlern in optischer faser. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4898463A (de) |
EP (1) | EP0318043B1 (de) |
JP (1) | JPH01141331A (de) |
DE (1) | DE3868491D1 (de) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8923933D0 (en) * | 1989-10-24 | 1989-12-13 | British Aerospace | Apparatus and methods for testing optical communications networks |
US5155439A (en) * | 1989-12-12 | 1992-10-13 | Tektronix, Inc. | Method of detecting and characterizing anomalies in a propagative medium |
US5069544A (en) * | 1990-04-12 | 1991-12-03 | Minnesota Mining And Manufacturing Company | Adaptive pulse width optical fault finder |
JP2909159B2 (ja) * | 1990-07-10 | 1999-06-23 | アンリツ株式会社 | 平滑化処理方法および平滑化処理による雑音除去装置およびそれを用いる光パルス試験装置 |
JP2951701B2 (ja) * | 1990-07-25 | 1999-09-20 | 株式会社アドバンテスト | 光パルス試験器 |
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 |
US5129722A (en) * | 1991-05-16 | 1992-07-14 | Tektronix, Inc. | Expansion windowing system for a measurement test instrument |
WO1994016347A1 (en) * | 1992-12-31 | 1994-07-21 | Gte Laboratories Incorporated | Electrically switched, remote optical time domain reflectometry system and fiber analysis method |
US5365328A (en) * | 1993-05-21 | 1994-11-15 | Tektronix, Inc. | Locating the position of an event in acquired digital data at sub-sample spacing |
US5552881A (en) * | 1994-03-17 | 1996-09-03 | Teradyne, Inc. | Method and apparatus for scanning a fiber optic network |
US5528356A (en) * | 1995-03-20 | 1996-06-18 | Tektronix, Inc. | Apparatus and method for displaying multiple sample spacing waveform segments |
JP2914217B2 (ja) * | 1995-04-28 | 1999-06-28 | 安藤電気株式会社 | 光線路試験装置およびその方法 |
JPH09318492A (ja) * | 1996-05-30 | 1997-12-12 | Ando Electric Co Ltd | Otdr測定装置 |
US5943123A (en) * | 1996-07-25 | 1999-08-24 | Anritsu Corporation | Optical fiber monitor using optical time domain reflectometer and monitoring method |
JP3664914B2 (ja) * | 1999-07-12 | 2005-06-29 | アンリツ株式会社 | 光パルス試験システム |
US6674518B1 (en) * | 2002-07-01 | 2004-01-06 | At&T Corp. | Method and apparatus for optical time domain reflectometry (OTDR) analysis |
JP5458515B2 (ja) * | 2008-06-25 | 2014-04-02 | 横河電機株式会社 | 光線路監視装置 |
DK2577890T3 (da) | 2010-05-27 | 2019-05-13 | Exfo Inc | Multi-registrerings-OTDR-fremgangsmåde og -indretning |
RU2503939C1 (ru) * | 2012-07-17 | 2014-01-10 | Федеральное государственное образовательное бюджетное учреждение высшего профессионального образования "Поволжский государственный университет телекоммуникаций и информатики" (ФГОБУ ВПО ПГУТИ) | Способ определения места повреждения оптического волокна |
KR102285347B1 (ko) * | 2015-02-13 | 2021-08-03 | 한국전자통신연구원 | 듀얼 광원을 이용한 광 선로 감시 장치 및 방법 |
US9641243B2 (en) | 2015-02-23 | 2017-05-02 | Exfo Inc. | Safe-mode OTDR method |
CN104867479B (zh) * | 2015-06-12 | 2017-05-17 | 京东方科技集团股份有限公司 | 拼接显示装置屏幕亮度的调节装置和方法 |
CN112924141A (zh) * | 2021-02-05 | 2021-06-08 | 南京科舜通信科技有限公司 | 一种光缆操作点定位方法和定位装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3115200A1 (de) * | 1981-04-15 | 1983-02-03 | Philips Kommunikations Industrie AG, 8500 Nürnberg | Verfahren zur messung von impulslaufzeiten, fehlerorten und daempfung auf kabeln und lichtwellenleitern |
FR2520114A1 (fr) * | 1982-01-18 | 1983-07-22 | Lignes Telegraph Telephon | Dispositif de localisation d'une cassure d'une fibre optique et utilisation d'un tel dispositif |
DE3340426C1 (de) * | 1983-11-09 | 1985-03-28 | Wandel & Goltermann Gmbh & Co, 7412 Eningen | Verfahren und Gerät zum Justieren eines Lichtwellenleiters (LW) an der Schnittstelle eines LWL-Meßgerätes |
JPS6150033A (ja) * | 1984-08-18 | 1986-03-12 | Iwatsu Electric Co Ltd | タイム・ドメイン・リフレクトメ−タ |
JPS61139886A (ja) * | 1984-12-11 | 1986-06-27 | Canon Inc | 情報検索装置 |
JPS61250519A (ja) * | 1985-04-30 | 1986-11-07 | Japan Steel & Tube Constr Co Ltd | 光フアイバ−による異常検出方法および装置 |
JPS6479637A (en) * | 1987-09-22 | 1989-03-24 | Nippon Telegraph & Telephone | Detection of position of defect and of open end of optical fiber |
-
1987
- 1987-11-27 JP JP62297803A patent/JPH01141331A/ja active Pending
-
1988
- 1988-11-23 US US07/276,231 patent/US4898463A/en not_active Expired - Fee Related
- 1988-11-25 EP EP88119720A patent/EP0318043B1/de not_active Expired - Lifetime
- 1988-11-25 DE DE8888119720T patent/DE3868491D1/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH01141331A (ja) | 1989-06-02 |
EP0318043A1 (de) | 1989-05-31 |
US4898463A (en) | 1990-02-06 |
EP0318043B1 (de) | 1992-02-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |