FR2453403A1 - Procede et dispositif de verification d'une fibre optique transmettant une information - Google Patents

Procede et dispositif de verification d'une fibre optique transmettant une information

Info

Publication number
FR2453403A1
FR2453403A1 FR7908729A FR7908729A FR2453403A1 FR 2453403 A1 FR2453403 A1 FR 2453403A1 FR 7908729 A FR7908729 A FR 7908729A FR 7908729 A FR7908729 A FR 7908729A FR 2453403 A1 FR2453403 A1 FR 2453403A1
Authority
FR
France
Prior art keywords
memorised
time shifts
link
optical fibre
whose amplitude
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
FR7908729A
Other languages
English (en)
Other versions
FR2453403B1 (fr
Inventor
Jean-Michel Decaudin
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.)
Bertin Technologies SAS
Original Assignee
Bertin et Cie 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 Bertin et Cie SA filed Critical Bertin et Cie SA
Priority to FR7908729A priority Critical patent/FR2453403A1/fr
Publication of FR2453403A1 publication Critical patent/FR2453403A1/fr
Application granted granted Critical
Publication of FR2453403B1 publication Critical patent/FR2453403B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
    • G02B6/2808—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using a mixing element which evenly distributes an input signal over a number of outputs
    • 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
    • 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
    • G01M11/33—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter being disposed at one fibre or waveguide end-face, and a light receiver at the other end-face
    • G01M11/332—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter being disposed at one fibre or waveguide end-face, and a light receiver at the other end-face using discrete input signals
    • 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
    • G01M11/33—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter being disposed at one fibre or waveguide end-face, and a light receiver at the other end-face
    • G01M11/335—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter being disposed at one fibre or waveguide end-face, and a light receiver at the other end-face using two or more input wavelengths
    • 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]
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29346—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by wave or beam interference
    • G02B6/29361—Interference filters, e.g. multilayer coatings, thin film filters, dichroic splitters or mirrors based on multilayers, WDM filters
    • G02B6/2937—In line lens-filtering-lens devices, i.e. elements arranged along a line and mountable in a cylindrical package for compactness, e.g. 3- port device with GRIN lenses sandwiching a single filter operating at normal incidence in a tubular package

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)

Abstract

L'invention concerne la transmission d'une information par des modulations de lumière transmises le long d'une fibre optique. Au moyen d'une source 2 indépendante de l'émetteur 1 de l'information on émet périodiquement des signaux de vérification de la qualité de la fibre optique 4. Un détecteur 6 reçoit la lumière de ces signaux que les imperfections de la fibre optique renvoient par rétrodiffusion. La comparaison des caractéristiques de ces signaux rétrodiffusés avec celles qui ont été enregistrées à la mise en service permet de détecter les dégradations éventuelles de la fibre optique et leurs localisations. Ce système qui permet d'assurer une surveillance continuelle de l'état de la fibre optique, est applicable aux industries de la téléphonie, de la télévision, de la mesure et de l'automatisme.
FR7908729A 1979-04-06 1979-04-06 Procede et dispositif de verification d'une fibre optique transmettant une information Granted FR2453403A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7908729A FR2453403A1 (fr) 1979-04-06 1979-04-06 Procede et dispositif de verification d'une fibre optique transmettant une information

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7908729A FR2453403A1 (fr) 1979-04-06 1979-04-06 Procede et dispositif de verification d'une fibre optique transmettant une information

Publications (2)

Publication Number Publication Date
FR2453403A1 true FR2453403A1 (fr) 1980-10-31
FR2453403B1 FR2453403B1 (fr) 1983-01-21

Family

ID=9224046

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7908729A Granted FR2453403A1 (fr) 1979-04-06 1979-04-06 Procede et dispositif de verification d'une fibre optique transmettant une information

Country Status (1)

Country Link
FR (1) FR2453403A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0030542A1 (fr) * 1979-06-11 1981-06-24 Western Electric Company, Incorporated Methode de controle du traitement de fibres optiques
DE3127374A1 (de) * 1981-07-09 1983-01-27 Siemens AG, 1000 Berlin und 8000 München Anordnung zur daempfungsmessung an einem lichtwellenleiter
WO1988008651A1 (fr) * 1987-04-27 1988-11-03 British Telecommunications Public Limited Company Systeme de surveillance
EP0360812A1 (fr) * 1987-05-07 1990-04-04 Porous Plastics Ltd Procede et dispositif de production d'un article par chauffage aux micro-ondes.
US4994059A (en) * 1986-05-09 1991-02-19 Gv Medical, Inc. Laser catheter feedback system
FR2738430A1 (fr) * 1990-09-21 1997-03-07 Alsthom Cge Alcatel Procede et dispositif de transmission d'information sur fibre optique avec detection et/ou localisation d'intrusion
EP1175743A1 (fr) * 1999-05-03 2002-01-30 Future Fibre Technologies Pty.Ltd. Protection intrinseque des liaisons de communication a fibres optiques

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2289884A1 (fr) * 1974-10-30 1976-05-28 Siemens Ag Procede pour mesurer la distance d'emplacement de defauts par rapport a une extremite d'une fibre de verre, et dispositif pour la mise en oeuvre de ce procede
FR2293709A1 (fr) * 1974-12-07 1976-07-02 Licentia Gmbh Procede de localisation des defauts dans des guides de lumiere en fibres de verre
JPS53130053A (en) * 1977-04-20 1978-11-13 Sumitomo Electric Ind Ltd Circuit supervisory system of optical fiber cable

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2289884A1 (fr) * 1974-10-30 1976-05-28 Siemens Ag Procede pour mesurer la distance d'emplacement de defauts par rapport a une extremite d'une fibre de verre, et dispositif pour la mise en oeuvre de ce procede
FR2293709A1 (fr) * 1974-12-07 1976-07-02 Licentia Gmbh Procede de localisation des defauts dans des guides de lumiere en fibres de verre
JPS53130053A (en) * 1977-04-20 1978-11-13 Sumitomo Electric Ind Ltd Circuit supervisory system of optical fiber cable

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
ABJP/79 *
EXBK/77 *
EXBK/78 *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0030542A1 (fr) * 1979-06-11 1981-06-24 Western Electric Company, Incorporated Methode de controle du traitement de fibres optiques
EP0030542A4 (fr) * 1979-06-11 1981-10-13 Western Electric Co Methode de controle du traitement de fibres optiques.
DE3127374A1 (de) * 1981-07-09 1983-01-27 Siemens AG, 1000 Berlin und 8000 München Anordnung zur daempfungsmessung an einem lichtwellenleiter
US4994059A (en) * 1986-05-09 1991-02-19 Gv Medical, Inc. Laser catheter feedback system
AU604123B2 (en) * 1987-04-27 1990-12-06 British Telecommunications Public Limited Company Surveillance for unauthorized access to optic network
EP0293086A1 (fr) * 1987-04-27 1988-11-30 BRITISH TELECOMMUNICATIONS public limited company Système de surveillance
WO1988008651A1 (fr) * 1987-04-27 1988-11-03 British Telecommunications Public Limited Company Systeme de surveillance
EP0360812A1 (fr) * 1987-05-07 1990-04-04 Porous Plastics Ltd Procede et dispositif de production d'un article par chauffage aux micro-ondes.
EP0360812B1 (fr) * 1987-05-07 1992-01-29 Porous Plastics Limited Procede et dispositif de production d'un article par chauffage aux micro-ondes
FR2738430A1 (fr) * 1990-09-21 1997-03-07 Alsthom Cge Alcatel Procede et dispositif de transmission d'information sur fibre optique avec detection et/ou localisation d'intrusion
DE4131009C1 (de) * 1990-09-21 1997-05-22 Alcatel France Verfahren und Vorrichtung zur Überwachung von Intrusionen auf einer Informationen übertragenden optischen Verbindungsfasern
EP1175743A1 (fr) * 1999-05-03 2002-01-30 Future Fibre Technologies Pty.Ltd. Protection intrinseque des liaisons de communication a fibres optiques
EP1175743A4 (fr) * 1999-05-03 2003-07-30 Future Fibre Tech Pty Ltd Protection intrinseque des liaisons de communication a fibres optiques

Also Published As

Publication number Publication date
FR2453403B1 (fr) 1983-01-21

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