NL9200436A - Methode met inrichting voor het detecteren van reflecties. - Google Patents

Methode met inrichting voor het detecteren van reflecties. Download PDF

Info

Publication number
NL9200436A
NL9200436A NL9200436A NL9200436A NL9200436A NL 9200436 A NL9200436 A NL 9200436A NL 9200436 A NL9200436 A NL 9200436A NL 9200436 A NL9200436 A NL 9200436A NL 9200436 A NL9200436 A NL 9200436A
Authority
NL
Netherlands
Prior art keywords
signal
optical
electrical
signals
modulator
Prior art date
Application number
NL9200436A
Other languages
English (en)
Dutch (nl)
Original Assignee
Nederland Ptt
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 Nederland Ptt filed Critical Nederland Ptt
Priority to NL9200436A priority Critical patent/NL9200436A/nl
Priority to ES93200565T priority patent/ES2108204T3/es
Priority to DE69312768T priority patent/DE69312768T2/de
Priority to AT93200565T priority patent/ATE156637T1/de
Priority to EP93200565A priority patent/EP0560426B1/de
Publication of NL9200436A publication Critical patent/NL9200436A/nl

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
    • G01M11/3172—Reflectometers detecting the back-scattered light in the frequency-domain, e.g. OFDR, FMCW, heterodyne detection
    • 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
    • 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)
  • Electromagnetism (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
NL9200436A 1992-03-09 1992-03-09 Methode met inrichting voor het detecteren van reflecties. NL9200436A (nl)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL9200436A NL9200436A (nl) 1992-03-09 1992-03-09 Methode met inrichting voor het detecteren van reflecties.
ES93200565T ES2108204T3 (es) 1992-03-09 1993-03-01 Procedimiento con dispositivo para la deteccion de reflexiones.
DE69312768T DE69312768T2 (de) 1992-03-09 1993-03-01 Verfahren mit Vorrichtung zur Detektion von Reflektionen
AT93200565T ATE156637T1 (de) 1992-03-09 1993-03-01 Verfahren mit vorrichtung zur detektion von reflektionen
EP93200565A EP0560426B1 (de) 1992-03-09 1993-03-01 Verfahren mit Vorrichtung zur Detektion von Reflektionen

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9200436 1992-03-09
NL9200436A NL9200436A (nl) 1992-03-09 1992-03-09 Methode met inrichting voor het detecteren van reflecties.

Publications (1)

Publication Number Publication Date
NL9200436A true NL9200436A (nl) 1993-10-01

Family

ID=19860536

Family Applications (1)

Application Number Title Priority Date Filing Date
NL9200436A NL9200436A (nl) 1992-03-09 1992-03-09 Methode met inrichting voor het detecteren van reflecties.

Country Status (5)

Country Link
EP (1) EP0560426B1 (de)
AT (1) ATE156637T1 (de)
DE (1) DE69312768T2 (de)
ES (1) ES2108204T3 (de)
NL (1) NL9200436A (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5790285A (en) * 1996-05-21 1998-08-04 Lucent Technologies Inc. Lightwave communication monitoring system
US7132645B2 (en) * 2003-03-07 2006-11-07 Infraredx, Inc. System and method for assessing catheter connection using return loss
EP1748580A1 (de) * 2005-07-28 2007-01-31 Alcatel Verfahren zur Überprüfung der Integrität einer optischen Zugangsleitung
DE602005003941T2 (de) 2005-08-12 2008-12-11 Alcatel Lucent Verfahren und Vorrichtung zur Überwachung einer optischen Verbindung und optischer Sender mit einer solchen Vorrichtung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3201375A1 (de) * 1982-01-19 1983-07-28 Siemens AG, 1000 Berlin und 8000 München Traegerfrequenzsystem fuer vierdrahtbetrieb
GB2138234B (en) * 1983-04-14 1986-10-08 Standard Telephones Cables Ltd Coherent reflectometer
DE4018379A1 (de) * 1990-06-08 1991-12-12 Rainer Dr Casdorff Verfahren und anordnung zur ermittlung der tatsaechlichen optischen weglaenge von licht in einem lichtleiter

Also Published As

Publication number Publication date
EP0560426A1 (de) 1993-09-15
EP0560426B1 (de) 1997-08-06
ES2108204T3 (es) 1997-12-16
DE69312768T2 (de) 1998-01-08
ATE156637T1 (de) 1997-08-15
DE69312768D1 (de) 1997-09-11

Similar Documents

Publication Publication Date Title
JP3759845B2 (ja) 光伝送路の監視のための方法及びシステム
US9749040B2 (en) Fiber optic telecommunications card with energy level monitoring
US5194847A (en) Apparatus and method for fiber optic intrusion sensing
US7088436B2 (en) Integrated optical time domain reflectometer and optical supervisory network
EP0652651B1 (de) Lageunabhängige OTDR Technikanwendung auf Basis von Korrelation in einem verzweigten faseroptischen Netzwerk während des Betriebs
US5412464A (en) Apparatus and method for monitoring losses in a branched optical fibre network
JPH0658840A (ja) 光ファイバーの検査システム及び検査方法
CA1297176C (en) Surveillance system
CA2267888A1 (en) Side-tone otdr for in-service optical cable monitoring
UA46054C2 (uk) Система, спосіб та пристрій для моніторингу оптоволоконного кабелю
CN105205960B (zh) 一种光纤周界入侵报警***
WO2005086779A2 (en) Method and apparatus for obtaining status information concerning an in-service optical transmission line
US5491574A (en) Optical signal transmission network
NL9200436A (nl) Methode met inrichting voor het detecteren van reflecties.
US5067810A (en) Shared laser tandem optical time domain reflectometer
CN1311497A (zh) 使用模式耦合的光纤侵入检测***
DK172232B1 (da) Fremgangsmåde til detektering af ydre påvirkning på et optisk kabel
CA2273336C (en) Optical pulse reflectometer
US5844702A (en) Bidirectional optical fiber transmission system with reflection signal monitor
US11105710B2 (en) Single OTDR measurement for a plurality of fibers
WO1994016347A1 (en) Electrically switched, remote optical time domain reflectometry system and fiber analysis method
EP0509434B1 (de) Übertragungsanlage mit fernüberwachter optischer Verbindung
RU2247347C1 (ru) Способ мониторинга волоконно-оптической сети
RU2152689C1 (ru) Система, способ и прибор для контроля волоконно-оптического кабеля
JPH0210241A (ja) 光フィイバ線路の試験方法

Legal Events

Date Code Title Description
A1B A search report has been drawn up
BV The patent application has lapsed