FR2422945A1 - Methode de sondage pour fibres optiques - Google Patents

Methode de sondage pour fibres optiques

Info

Publication number
FR2422945A1
FR2422945A1 FR7810722A FR7810722A FR2422945A1 FR 2422945 A1 FR2422945 A1 FR 2422945A1 FR 7810722 A FR7810722 A FR 7810722A FR 7810722 A FR7810722 A FR 7810722A FR 2422945 A1 FR2422945 A1 FR 2422945A1
Authority
FR
France
Prior art keywords
receiver
optical fibre
reflection
measuring circuit
pulse
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
FR7810722A
Other languages
English (en)
Other versions
FR2422945B1 (fr
Inventor
Jean-Paul Pocholle
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.)
Alcatel Lucent SAS
Original Assignee
Compagnie Generale dElectricite 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 Compagnie Generale dElectricite SA filed Critical Compagnie Generale dElectricite SA
Priority to FR7810722A priority Critical patent/FR2422945A1/fr
Publication of FR2422945A1 publication Critical patent/FR2422945A1/fr
Application granted granted Critical
Publication of FR2422945B1 publication Critical patent/FR2422945B1/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
    • G02B6/241—Light guide terminations
    • 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
    • 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
    • G02B6/25—Preparing the ends of light guides for coupling, e.g. cutting
    • 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
    • G02B6/262—Optical details of coupling light into, or out of, or between fibre ends, e.g. special fibre end shapes or associated optical elements
    • 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
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G02B6/4207—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms with optical elements reducing the sensitivity to optical feedback

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

L'invention concerne une méthode de sondage pour fibres optiques. Une impulsion de lumière polarisée est injectée dans une fibre, s'y propage, est réfléchie par un défaut éventuel dans la longueur de la fibre et renvoyée sur un récepteur, la mesure du temps qui s'est écoulé à partir de l'injection permettant de localiser le défaut, la lumière parasite réfléchie sur la face avant de la fibre étant envoyée sur un piège à lumière grâce à l'obliquité de cette face avant. Application à la maintenance des systèmes de télécommunications à fibres optiques.
FR7810722A 1978-04-12 1978-04-12 Methode de sondage pour fibres optiques Granted FR2422945A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7810722A FR2422945A1 (fr) 1978-04-12 1978-04-12 Methode de sondage pour fibres optiques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7810722A FR2422945A1 (fr) 1978-04-12 1978-04-12 Methode de sondage pour fibres optiques

Publications (2)

Publication Number Publication Date
FR2422945A1 true FR2422945A1 (fr) 1979-11-09
FR2422945B1 FR2422945B1 (fr) 1980-10-10

Family

ID=9207002

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7810722A Granted FR2422945A1 (fr) 1978-04-12 1978-04-12 Methode de sondage pour fibres optiques

Country Status (1)

Country Link
FR (1) FR2422945A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2537280A1 (fr) * 1982-12-03 1984-06-08 Thomson Csf Dispositif de mesure de parametres de transmission d'une fibre optique par la methode de retrodiffusion
EP0442202A3 (en) * 1990-02-13 1992-07-29 American Telephone And Telegraph Company Method of producing apparatus comprising a low-reflection optical fiber connection

Citations (4)

* 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
DE2546269A1 (de) * 1975-10-16 1977-04-21 Licentia Gmbh Optische messanordnung zur ermittlung von fehlerstellen in lichtleitfasern
US4021121A (en) * 1974-10-30 1977-05-03 Siemens Aktiengesellschaft Method and apparatus for measuring the distance of a discontinuity of a glass fiber from one end of the fiber
DE2620357A1 (de) * 1976-05-06 1977-11-17 Aeg Telefunken Kabelwerke Daempfungsmessung in lichtleitern

Patent Citations (4)

* 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
US4021121A (en) * 1974-10-30 1977-05-03 Siemens Aktiengesellschaft Method and apparatus for measuring the distance of a discontinuity of a glass fiber from one end of the fiber
DE2546269A1 (de) * 1975-10-16 1977-04-21 Licentia Gmbh Optische messanordnung zur ermittlung von fehlerstellen in lichtleitfasern
DE2620357A1 (de) * 1976-05-06 1977-11-17 Aeg Telefunken Kabelwerke Daempfungsmessung in lichtleitern

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
EXBK/77 *
NV2219/75 *
NV2219/76 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2537280A1 (fr) * 1982-12-03 1984-06-08 Thomson Csf Dispositif de mesure de parametres de transmission d'une fibre optique par la methode de retrodiffusion
EP0442202A3 (en) * 1990-02-13 1992-07-29 American Telephone And Telegraph Company Method of producing apparatus comprising a low-reflection optical fiber connection

Also Published As

Publication number Publication date
FR2422945B1 (fr) 1980-10-10

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Legal Events

Date Code Title Description
ST Notification of lapse