CA2639131A1 - Methode et dispositif assurant le traitement des signaux insensibles a la polarisation pour capteurs interferometriques - Google Patents

Methode et dispositif assurant le traitement des signaux insensibles a la polarisation pour capteurs interferometriques

Info

Publication number
CA2639131A1
CA2639131A1 CA002639131A CA2639131A CA2639131A1 CA 2639131 A1 CA2639131 A1 CA 2639131A1 CA 002639131 A CA002639131 A CA 002639131A CA 2639131 A CA2639131 A CA 2639131A CA 2639131 A1 CA2639131 A1 CA 2639131A1
Authority
CA
Canada
Prior art keywords
pulse
light
polarization
modulator
phase
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
CA002639131A
Other languages
English (en)
Other versions
CA2639131C (fr
Inventor
Ole Henrik Waagaard
Erlend Ronnekleiv
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 Submarine Networks Norway AS
Original Assignee
Weatherford Lamb Inc
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
Priority claimed from US10/650,117 external-priority patent/US7081959B2/en
Priority claimed from US10/649,590 external-priority patent/US7088878B2/en
Application filed by Weatherford Lamb Inc filed Critical Weatherford Lamb Inc
Publication of CA2639131A1 publication Critical patent/CA2639131A1/fr
Application granted granted Critical
Publication of CA2639131C publication Critical patent/CA2639131C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/344—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using polarisation
    • G01D5/345—Polarising encoders
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
    • G01D5/35303—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using a reference fibre, e.g. interferometric devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
    • G01D5/35383—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using multiple sensor devices using multiplexing techniques

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Communication System (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)

Abstract

Procédé et appareil qui utilisent la modulation de source spécifique et des détecteurs pour détecter une réponse qui transporte des informations relatives à une matrice de réponses système associée à chaque capteur dans un réseau de capteurs interférométriques et pour extraire une réponse de capteur d'une manière qui élimine l'évanouissement du signal induit par la polarisation et qui est insensible aux fluctuations de biréfringence de la fibre de plomb.
CA2639131A 2003-08-27 2004-08-25 Methode et dispositif assurant le traitement des signaux insensibles a la polarisation pour capteurs interferometriques Expired - Lifetime CA2639131C (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US10/649,590 2003-08-27
US10/650,117 US7081959B2 (en) 2003-08-27 2003-08-27 Method and apparatus for providing polarization insensitive signal processing for interferometric sensors
US10/649,590 US7088878B2 (en) 2003-08-27 2003-08-27 Method and apparatus for producing depolarized light
US10/650,117 2003-08-27
CA002479081A CA2479081C (fr) 2003-08-27 2004-08-25 Methode et dispositif assurant le traitement des signaux insensibles a la polarisation pour capteurs interferometriques

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002479081A Division CA2479081C (fr) 2003-08-27 2004-08-25 Methode et dispositif assurant le traitement des signaux insensibles a la polarisation pour capteurs interferometriques

Publications (2)

Publication Number Publication Date
CA2639131A1 true CA2639131A1 (fr) 2005-02-27
CA2639131C CA2639131C (fr) 2010-01-26

Family

ID=33135364

Family Applications (3)

Application Number Title Priority Date Filing Date
CA002479245A Expired - Lifetime CA2479245C (fr) 2003-08-27 2004-08-25 Methode et dispositif produisant de la lumiere depolarisee
CA002479081A Expired - Lifetime CA2479081C (fr) 2003-08-27 2004-08-25 Methode et dispositif assurant le traitement des signaux insensibles a la polarisation pour capteurs interferometriques
CA2639131A Expired - Lifetime CA2639131C (fr) 2003-08-27 2004-08-25 Methode et dispositif assurant le traitement des signaux insensibles a la polarisation pour capteurs interferometriques

Family Applications Before (2)

Application Number Title Priority Date Filing Date
CA002479245A Expired - Lifetime CA2479245C (fr) 2003-08-27 2004-08-25 Methode et dispositif produisant de la lumiere depolarisee
CA002479081A Expired - Lifetime CA2479081C (fr) 2003-08-27 2004-08-25 Methode et dispositif assurant le traitement des signaux insensibles a la polarisation pour capteurs interferometriques

Country Status (2)

Country Link
CA (3) CA2479245C (fr)
GB (2) GB2405469B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016086310A1 (fr) * 2014-12-04 2016-06-09 Hifi Engineering Inc. Interrogateur optique permettant de réaliser une interférométrie au moyen de réseaux de bragg sur fibre

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7466425B2 (en) 2005-04-22 2008-12-16 Agilent Technologies, Inc. Elementary matrix based optical signal/network analyzer
US10247581B2 (en) 2014-04-28 2019-04-02 Optoplan As Interferometric optical fibre sensor system and method of interrogation
GB2568305B (en) 2017-11-13 2022-06-15 Univ Cranfield A fibre optic sensing device
CN109631962B (zh) * 2018-12-20 2020-12-04 中国人民解放军国防科技大学 一种基于pgc方案的多频载波偏振调制解调系统及方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5173743A (en) * 1991-05-28 1992-12-22 Litton Systems, Inc. Fiber optical time-division-multiplexed unbalanced pulsed interferometer with polarization fading compensation
EP0570151B1 (fr) * 1992-05-08 1997-10-29 Kokusai Denshin Denwa Co., Ltd Emetteur optique avec un signal lumineux de degré de polarisation réduit et circuit optique de dépolarisation
US6574015B1 (en) * 1998-05-19 2003-06-03 Seagate Technology Llc Optical depolarizer
NO322073B1 (no) * 1999-06-23 2006-08-07 Optoplan As Fremgangsmate for polarisasjonskontroll
CA2393172C (fr) * 2002-07-12 2008-11-04 Itf Technologies Optiques Inc.- Itf Optical Technologies Inc. Depolariseur tout en fibres de conception lineaire

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016086310A1 (fr) * 2014-12-04 2016-06-09 Hifi Engineering Inc. Interrogateur optique permettant de réaliser une interférométrie au moyen de réseaux de bragg sur fibre
US10416005B2 (en) 2014-12-04 2019-09-17 Hifi Engineering Inc. Optical interrogator for performing interferometry using fiber Bragg gratings
US11054288B2 (en) 2014-12-04 2021-07-06 Hifi Engineering Inc. Optical interrogator for performing interferometry using Bragg gratings

Also Published As

Publication number Publication date
CA2479245C (fr) 2010-01-12
GB2406166A (en) 2005-03-23
CA2479081A1 (fr) 2005-02-27
GB2405469A (en) 2005-03-02
GB0419163D0 (en) 2004-09-29
GB2405469B (en) 2006-11-29
CA2479081C (fr) 2008-11-25
GB0419047D0 (en) 2004-09-29
GB2406166B (en) 2006-07-05
CA2479245A1 (fr) 2005-02-27
CA2639131C (fr) 2010-01-26

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