GB2398866B - Sensing device having a large diameter d-shaped optical waveguide - Google Patents

Sensing device having a large diameter d-shaped optical waveguide

Info

Publication number
GB2398866B
GB2398866B GB0400487A GB0400487A GB2398866B GB 2398866 B GB2398866 B GB 2398866B GB 0400487 A GB0400487 A GB 0400487A GB 0400487 A GB0400487 A GB 0400487A GB 2398866 B GB2398866 B GB 2398866B
Authority
GB
United Kingdom
Prior art keywords
optical waveguide
sensing device
large diameter
shaped optical
shaped
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.)
Expired - Fee Related
Application number
GB0400487A
Other versions
GB2398866A (en
GB0400487D0 (en
Inventor
Alan D Kersey
Paul E Sanders
Martin A Putnam
Edward Michael Dowd
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.)
Weatherford Lamb Inc
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
Application filed by Weatherford Lamb Inc filed Critical Weatherford Lamb Inc
Publication of GB0400487D0 publication Critical patent/GB0400487D0/en
Publication of GB2398866A publication Critical patent/GB2398866A/en
Application granted granted Critical
Publication of GB2398866B publication Critical patent/GB2398866B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
    • G01B11/18—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge using photoelastic elements
    • 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
    • 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
    • G01D5/3537—Optical fibre sensor using a particular arrangement of the optical fibre itself
    • G01D5/35377—Means for amplifying or modifying the measured quantity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
    • G01L1/242—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/09—Processes or apparatus for excitation, e.g. pumping
    • H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
    • H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
    • H01S3/094003—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre
    • H01S3/094007—Cladding pumping, i.e. pump light propagating in a clad surrounding the active core
GB0400487A 2003-01-13 2004-01-12 Sensing device having a large diameter d-shaped optical waveguide Expired - Fee Related GB2398866B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US43971603P 2003-01-13 2003-01-13

Publications (3)

Publication Number Publication Date
GB0400487D0 GB0400487D0 (en) 2004-02-11
GB2398866A GB2398866A (en) 2004-09-01
GB2398866B true GB2398866B (en) 2006-03-08

Family

ID=31716041

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0400487A Expired - Fee Related GB2398866B (en) 2003-01-13 2004-01-12 Sensing device having a large diameter d-shaped optical waveguide

Country Status (2)

Country Link
CA (1) CA2454970C (en)
GB (1) GB2398866B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105115623A (en) * 2015-08-12 2015-12-02 天津大学 Miniature fiber high temperature sensor based on Michelson interference theory and production method

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4386822A (en) * 1980-10-10 1983-06-07 The Leland Stanford Junior University Polarizer and method
US4387954A (en) * 1981-01-19 1983-06-14 Gould Inc. Method for fabricating an optical waveguide evanescent wave coupler having an interleaved film
EP0127257A2 (en) * 1983-02-25 1984-12-05 Andrew A.G. Fiber-optic rotation sensor
JPS61117411A (en) * 1984-11-14 1986-06-04 Agency Of Ind Science & Technol Optical fiber sensor
CA1248383A (en) * 1983-11-04 1989-01-10 Richard B. Dyott Self-aligning optical fiber with accessible guiding region
WO2002075404A1 (en) * 2001-03-16 2002-09-26 Cidra Corporation D-shaped waveguide and optical coupler using the waveguide
US20020172459A1 (en) * 2001-03-16 2002-11-21 Bailey Timothy J. Method and apparatus for coupling light into an optical waveguide
US20020197037A1 (en) * 1999-09-20 2002-12-26 Bailey Timothy J. Large diameter D-shaped optical waveguide and coupler

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4386822A (en) * 1980-10-10 1983-06-07 The Leland Stanford Junior University Polarizer and method
US4387954A (en) * 1981-01-19 1983-06-14 Gould Inc. Method for fabricating an optical waveguide evanescent wave coupler having an interleaved film
EP0127257A2 (en) * 1983-02-25 1984-12-05 Andrew A.G. Fiber-optic rotation sensor
CA1248383A (en) * 1983-11-04 1989-01-10 Richard B. Dyott Self-aligning optical fiber with accessible guiding region
JPS61117411A (en) * 1984-11-14 1986-06-04 Agency Of Ind Science & Technol Optical fiber sensor
US20020197037A1 (en) * 1999-09-20 2002-12-26 Bailey Timothy J. Large diameter D-shaped optical waveguide and coupler
WO2002075404A1 (en) * 2001-03-16 2002-09-26 Cidra Corporation D-shaped waveguide and optical coupler using the waveguide
US20020172459A1 (en) * 2001-03-16 2002-11-21 Bailey Timothy J. Method and apparatus for coupling light into an optical waveguide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105115623A (en) * 2015-08-12 2015-12-02 天津大学 Miniature fiber high temperature sensor based on Michelson interference theory and production method
CN105115623B (en) * 2015-08-12 2017-12-01 天津大学 Based on the theoretical mini optical fibre pyrostat of Michelson interference and preparation method

Also Published As

Publication number Publication date
CA2454970A1 (en) 2004-07-13
GB2398866A (en) 2004-09-01
CA2454970C (en) 2010-10-12
GB0400487D0 (en) 2004-02-11

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Legal Events

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732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

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732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

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732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20210225 AND 20210303

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20210112