FR2393287A1 - Echometre pour la localisation de defauts affectant les conducteurs de lumiere - Google Patents

Echometre pour la localisation de defauts affectant les conducteurs de lumiere

Info

Publication number
FR2393287A1
FR2393287A1 FR7716568A FR7716568A FR2393287A1 FR 2393287 A1 FR2393287 A1 FR 2393287A1 FR 7716568 A FR7716568 A FR 7716568A FR 7716568 A FR7716568 A FR 7716568A FR 2393287 A1 FR2393287 A1 FR 2393287A1
Authority
FR
France
Prior art keywords
echometer
light conductors
locating faults
affecting light
faults affecting
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.)
Granted
Application number
FR7716568A
Other languages
English (en)
Other versions
FR2393287B1 (fr
Inventor
Georges Comte
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cables de Lyon SA
Original Assignee
Cables de Lyon SA
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 Cables de Lyon SA filed Critical Cables de Lyon SA
Priority to FR7716568A priority Critical patent/FR2393287A1/fr
Priority to CH473478A priority patent/CH623417A5/fr
Priority to IT23309/78A priority patent/IT1094629B/it
Priority to GB19572/78A priority patent/GB1563993A/en
Priority to DE19782822567 priority patent/DE2822567A1/de
Priority to NL7805870A priority patent/NL7805870A/xx
Priority to CA304,385A priority patent/CA1108431A/fr
Priority to JP6445378A priority patent/JPS53149351A/ja
Publication of FR2393287A1 publication Critical patent/FR2393287A1/fr
Application granted granted Critical
Publication of FR2393287B1 publication Critical patent/FR2393287B1/fr
Priority to US06/392,912 priority patent/US4826314A/en
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/88—Lidar systems specially adapted for specific applications
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Electromagnetism (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Optics & Photonics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Analytical Chemistry (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Optical Communication System (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Abstract

Echomètre permettant la transposition d'un signal optique dans la bande des ondes centimétriques ou décimétriques. Le signal d'exploration et l'oscillation locale sont obtenus à partir d'un seul oscillateur laser. Le signal d'exploration ainsi que l'oscillateur local sont modulés à des fréquences centimétriques ou décimétriques détectées par mélange du signal écho et de l'oscillation locale dans une photodiode. Applications : dispositif de modulation de la lumière.
FR7716568A 1977-05-31 1977-05-31 Echometre pour la localisation de defauts affectant les conducteurs de lumiere Granted FR2393287A1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
FR7716568A FR2393287A1 (fr) 1977-05-31 1977-05-31 Echometre pour la localisation de defauts affectant les conducteurs de lumiere
CH473478A CH623417A5 (fr) 1977-05-31 1978-05-02
IT23309/78A IT1094629B (it) 1977-05-31 1978-05-11 Ecometro per la localizzazione di difetti che influenzano i conduttori di luce
GB19572/78A GB1563993A (en) 1977-05-31 1978-05-15 Echometer for locating defects which affect light conductors
DE19782822567 DE2822567A1 (de) 1977-05-31 1978-05-24 Echometer zur lokalisierung von fehlern in lichtleitern
NL7805870A NL7805870A (nl) 1977-05-31 1978-05-30 Echometer voor de plaatsbepaling van fouten die van in- vloed zijn op lichtgeleiders.
CA304,385A CA1108431A (fr) 1977-05-31 1978-05-30 Echometre pour la localisation de defauts affectant les conducteurs de lumiere
JP6445378A JPS53149351A (en) 1977-05-31 1978-05-31 Reflection investigating meter
US06/392,912 US4826314A (en) 1977-05-31 1982-06-28 Echometer for locating defects which affect light conductors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7716568A FR2393287A1 (fr) 1977-05-31 1977-05-31 Echometre pour la localisation de defauts affectant les conducteurs de lumiere

Publications (2)

Publication Number Publication Date
FR2393287A1 true FR2393287A1 (fr) 1978-12-29
FR2393287B1 FR2393287B1 (fr) 1980-07-11

Family

ID=9191459

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7716568A Granted FR2393287A1 (fr) 1977-05-31 1977-05-31 Echometre pour la localisation de defauts affectant les conducteurs de lumiere

Country Status (9)

Country Link
US (1) US4826314A (fr)
JP (1) JPS53149351A (fr)
CA (1) CA1108431A (fr)
CH (1) CH623417A5 (fr)
DE (1) DE2822567A1 (fr)
FR (1) FR2393287A1 (fr)
GB (1) GB1563993A (fr)
IT (1) IT1094629B (fr)
NL (1) NL7805870A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP0113104A2 (fr) * 1982-12-24 1984-07-11 Sumitomo Electric Industries Limited Dispositif de détection de fractures dans des fibres destinées au transport de l'énergie
FR2640379A1 (fr) * 1988-12-14 1990-06-15 Centre Nat Rech Scient Procede d'analyse de composants d'optique guidee, fibres optiques ou reseaux de guides optiques par reflectometrie temporelle et reflectometre dans le domaine temporel

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3126356A1 (de) * 1981-07-03 1983-01-20 Siemens AG, 1000 Berlin und 8000 München Verfahren zum pruefen von objekten
FR2517081A1 (fr) * 1981-11-26 1983-05-27 Monerie Michel Procede de detection coherente et de demodulation d'une onde porteuse modulee a etat de polarisation variable et dispositif de mise en oeuvre
DE3230570A1 (de) * 1982-08-17 1984-04-26 Siemens AG, 1000 Berlin und 8000 München Sende- und empfangseinrichtung fuer ein faseroptisches sensorsystem
GB2138234B (en) * 1983-04-14 1986-10-08 Standard Telephones Cables Ltd Coherent reflectometer
DE3340428A1 (de) * 1983-11-09 1985-05-23 Wandel & Goltermann Gmbh & Co, 7412 Eningen Verfahren und einrichtung zur ueberwachung eines optischen nachrichtenuebertragungssystems
DE3425671A1 (de) * 1984-07-12 1986-01-23 Philips Patentverwaltung Gmbh, 2000 Hamburg Verfahren und vorrichtung zum messen der daempfung an lichtwellenleitern
DE3506884A1 (de) * 1985-02-27 1986-08-28 Philips Patentverwaltung Gmbh, 2000 Hamburg Optisches zeitbereichsreflektometer mit heterodyn-empfang
GB2182223A (en) * 1985-10-23 1987-05-07 Stc Plc Optical fibre reflectometer
JPS62200782A (ja) * 1986-02-28 1987-09-04 Anritsu Corp 光ファイバ測定装置
JPH0623678B2 (ja) * 1986-03-19 1994-03-30 アンリツ株式会社 コヒ−レントｏｔｄｒ装置
CH679184A5 (fr) * 1989-10-17 1991-12-31 Leica Aarau Ag
WO1991012509A1 (fr) * 1990-02-15 1991-08-22 British Telecommunications Public Limited Company Appareil de controle optique
US5013907A (en) * 1990-03-27 1991-05-07 Tektronix, Inc. Optical time domain testing instrument
US5149961A (en) * 1990-05-15 1992-09-22 Eg&G, Ltd. Method and apparatus for optical fiber length determination
JPH04134238A (ja) * 1990-09-27 1992-05-08 Ando Electric Co Ltd ヘテロダイン受光を用いた光パルス試験器
US5757241A (en) * 1996-12-31 1998-05-26 Millitech Corporation Pulse amplification apparatus and method
US9500562B2 (en) * 2015-02-05 2016-11-22 University Of Ottawa Kerr phase-interrogator for sensing and signal processing applications

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2280072A1 (fr) * 1974-07-26 1976-02-20 Douillie Remy Procede et equipement de mesure permettant de localiser une cassure sur un cable optique

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP0113104A2 (fr) * 1982-12-24 1984-07-11 Sumitomo Electric Industries Limited Dispositif de détection de fractures dans des fibres destinées au transport de l'énergie
EP0113104A3 (en) * 1982-12-24 1985-04-17 Sumitomo Electric Industries Limited Device for detecting fractures in power transmission fibers
FR2640379A1 (fr) * 1988-12-14 1990-06-15 Centre Nat Rech Scient Procede d'analyse de composants d'optique guidee, fibres optiques ou reseaux de guides optiques par reflectometrie temporelle et reflectometre dans le domaine temporel
EP0374043A1 (fr) * 1988-12-14 1990-06-20 Gaz De France Procédé d'analyse de composants d'optique guidée, fibres optiques ou réseaux de guides optiques par réflectométrie temporelle et réflectomètre dans le domaine temporel
US5045689A (en) * 1988-12-14 1991-09-03 Claude Froehly Method of analyzing guided optics components, optical fibers or optical guide networks by time reflectometry and reflectometer in the time sphere

Also Published As

Publication number Publication date
JPS6235051B2 (fr) 1987-07-30
US4826314A (en) 1989-05-02
DE2822567C2 (fr) 1989-02-09
CH623417A5 (fr) 1981-05-29
FR2393287B1 (fr) 1980-07-11
IT7823309A0 (it) 1978-05-11
NL7805870A (nl) 1978-12-04
DE2822567A1 (de) 1979-01-04
CA1108431A (fr) 1981-09-08
GB1563993A (en) 1980-04-02
JPS53149351A (en) 1978-12-26
IT1094629B (it) 1985-08-02

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