JP5574614B2 - マルチコアファイバグレーティングセンサ - Google Patents
マルチコアファイバグレーティングセンサ Download PDFInfo
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- JP5574614B2 JP5574614B2 JP2009099468A JP2009099468A JP5574614B2 JP 5574614 B2 JP5574614 B2 JP 5574614B2 JP 2009099468 A JP2009099468 A JP 2009099468A JP 2009099468 A JP2009099468 A JP 2009099468A JP 5574614 B2 JP5574614 B2 JP 5574614B2
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- temperature
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- 239000000835 fiber Substances 0.000 title claims description 96
- 230000008859 change Effects 0.000 claims description 36
- 239000002019 doping agent Substances 0.000 claims description 27
- 229910052739 hydrogen Inorganic materials 0.000 claims description 20
- 239000001257 hydrogen Substances 0.000 claims description 20
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 17
- 239000013307 optical fiber Substances 0.000 claims description 17
- 238000005253 cladding Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 229910052787 antimony Inorganic materials 0.000 claims description 5
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical group [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims description 5
- 229910052732 germanium Inorganic materials 0.000 claims description 5
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical group [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 5
- 150000002431 hydrogen Chemical class 0.000 claims description 3
- 238000009529 body temperature measurement Methods 0.000 claims description 2
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 description 16
- 229910052805 deuterium Inorganic materials 0.000 description 16
- 238000000926 separation method Methods 0.000 description 13
- 238000005259 measurement Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 206010034972 Photosensitivity reaction Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000012681 fiber drawing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000036211 photosensitivity Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- 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
- G01K11/3206—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 at discrete locations in the fibre, e.g. using Bragg scattering
-
- 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
- G01L1/246—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 using integrated gratings, e.g. Bragg gratings
-
- 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
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02042—Multicore optical fibres
-
- 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
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
- G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
- G02B6/0208—Refractive index modulation gratings, e.g. Bragg gratings characterised by their structure, wavelength response
- G02B6/021—Refractive index modulation gratings, e.g. Bragg gratings characterised by their structure, wavelength response characterised by the core or cladding or coating, e.g. materials, radial refractive index profiles, cladding shape
-
- 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
- G02B6/29304—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 diffraction, e.g. grating
- G02B6/29316—Light guides comprising a diffractive element, e.g. grating in or on the light guide such that diffracted light is confined in the light guide
- G02B6/29317—Light guides of the optical fibre type
- G02B6/29319—With a cascade of diffractive elements or of diffraction operations
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Optical Transform (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Length Measuring Devices By Optical Means (AREA)
Description
さらに、本発明は、前記一条の光ファイバの製造方法であって、前記第一のコアにドーパントをドープするステップと、前記第一のコアとは異なるドーパントの形態で前記第二のコアをドープするステップと、前記第一および前記第二のコアを覆うように前記クラッドを施すステップと、前記それぞれのコアに実質的に同一のグレーティング周期を有するグレーティングを施すステップとからなることを特徴とする。
102 040298ファイバ
103 111495ファイバ
601 第一のコア
602 第二のコア
701、702 グレーティング
901 短波長域
902 長波長域
1404 カプラ
1405 光源
1406 イントロゲータ
1407 結合領域
Claims (6)
- 水素を含む環境における温度の測定に用いられる一条の光ファイバは、
ファイバの長手方向に沿って延びる第一及び第二のドープされたコアと、
前記第一及び第二のコアを取り囲むクラッドと、
を備え、
それぞれの前記コアは、異なるドーパント形態を有し、実質的に同一のグレーティング周期を有するグレーティングを含み、
2つのグレーティングによって反射された光の間で、それぞれのコアの歪や周囲の前記水素を含む環境によっては実質的に影響されない波長変化の差を与えるように前記ドーパント形態は選択され、
前記環境の温度は前記2つのグレーティングによって反射された前記光の間での前記波長変化の前記差に基づいて測定される、
ことを特徴とする、光ファイバ。 - 濃度が異なる同一のドーパントが前記第一及び第二のコアに使われる、ことを特徴とする請求項1に記載の光ファイバ。
- それぞれの前記コアのドーパントはゲルマニウムであり、前記第一のコアと前記クラッドとの間の屈折率の差が約0.004と0.008との間であるように前記第一のコアはドープされ、そして、前記第二のコアと前記クラッドとの間の屈折率の差が約0.035と0.05との間であるように前記第二のコアはドープされる、ことを特徴とする請求項2に記載の光ファイバ。
- 異なるドーパントが前記第一及び第二のコアに使われる、ことを特徴とする請求項1に記載の光ファイバ。
- 前記第一のコアのドーパントはアンチモンであり、前記第一のコアと前記クラッドとの間の屈折率の差が約0.004と0.008との間であるように前記第一のコアはドープされ、そして、前記第二のコアのドーパントがゲルマニウムであり、前記第二のコアと前記クラッドとの間の屈折率の差が約0.035と0.05との間であるように前記第二のコアはドープされる、ことを特徴とする請求項4に記載の光ファイバ。
- 水素を含む環境における温度の測定に用いられる光ファイバを製造する方法であって、
第一のコアにドーパント形態でドープするステップと、
前記第一のコアとは異なるドーパント形態で第二のコアをドープするステップと、
前記第一及び第二のコアを覆うようにクラッド層を施すステップと、
前記それぞれのコアに、実質的に同一のグレーティング周期を有するグレーティングを施すステップと、
を含み、
2つのグレーティングによって反射された光の間で、それぞれのコアの歪や周囲の前記水素を含む環境によっては実質的に影響されない波長変化の差を与えるように前記ドーパント形態は選択され、前記環境の温度は前記2つのグレーティングによって反射された前記光の間での前記波長変化の前記差に基づいて測定される、
ことを特徴とする、光ファイバを製造する方法。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US4531508P | 2008-04-16 | 2008-04-16 | |
US61/045,315 | 2008-04-16 | ||
US12/372,495 | 2009-02-17 | ||
US12/372,495 US8123400B2 (en) | 2008-04-16 | 2009-02-17 | Multi-core fiber grating sensor |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009258739A JP2009258739A (ja) | 2009-11-05 |
JP5574614B2 true JP5574614B2 (ja) | 2014-08-20 |
Family
ID=40823216
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009099468A Active JP5574614B2 (ja) | 2008-04-16 | 2009-04-16 | マルチコアファイバグレーティングセンサ |
Country Status (3)
Country | Link |
---|---|
US (1) | US8123400B2 (ja) |
EP (1) | EP2110652B1 (ja) |
JP (1) | JP5574614B2 (ja) |
Families Citing this family (28)
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CN102141513A (zh) * | 2010-12-30 | 2011-08-03 | 华中科技大学 | 一种微纳光纤折射率传感器 |
CN102261978B (zh) * | 2011-04-28 | 2013-01-30 | 浙江师范大学 | 基于双芯双孔光纤实现液压传感的方法及装置 |
CN102261965B (zh) * | 2011-04-28 | 2013-01-30 | 浙江师范大学 | 基于双芯光纤的温度传感方法及装置 |
CN103959119A (zh) | 2011-12-09 | 2014-07-30 | 惠普发展公司,有限责任合伙企业 | 光学连接 |
WO2013108063A1 (en) * | 2012-01-19 | 2013-07-25 | Draka Comteq Bv | Temperature and strain sensing optical fiber and temperature and strain sensor |
US9574950B2 (en) | 2012-03-07 | 2017-02-21 | Ofs Fitel, Llc | Grating-based sensor |
CN104220846A (zh) * | 2012-03-23 | 2014-12-17 | 住友电气工业株式会社 | 干涉测量装置 |
DE102012106806B4 (de) * | 2012-07-26 | 2022-07-28 | J-Fiber Gmbh | Sensorfaser zur Temperatur-, Dehnungs- und/oder Torsionsdetektion in Form eines Mehrkern-Lichtwellenleiters mit einer Fiber-Bragg-Gitterstruktur |
US9574911B2 (en) * | 2012-08-09 | 2017-02-21 | Corning Incorporated | Two-core optical fibers for distributed fiber sensors and systems |
US10036849B2 (en) | 2013-03-15 | 2018-07-31 | Ofs Fitel, Llc | Compensation of fiber lensing effect during grating fabrication in multicore fiber |
JP5868447B2 (ja) * | 2013-03-15 | 2016-02-24 | オーエフエス ファイテル,エルエルシー | マルチコア・ファイバへのグレーティングの製作中のファイバ・レンズ作用の影響への補償 |
US9880035B2 (en) | 2013-03-28 | 2018-01-30 | Exxonmobil Research And Engineering Company | Method and system for detecting coking growth and maldistribution in refinery equipment |
US9778115B2 (en) | 2013-03-28 | 2017-10-03 | Exxonmobil Research And Engineering Company | Method and system for detecting deposits in a vessel |
US9746434B2 (en) | 2013-03-28 | 2017-08-29 | Exxonmobil Research And Engineering Company | Method and system for determining flow distribution through a component |
US9500554B2 (en) * | 2013-03-28 | 2016-11-22 | Exxonmobil Research And Engineering Company | Method and system for detecting a leak in a pipeline |
US9645002B2 (en) | 2013-03-28 | 2017-05-09 | Exxonmobil Research And Engineering Company | System and method for identifying levels or interfaces of media in a vessel |
US10634536B2 (en) | 2013-12-23 | 2020-04-28 | Exxonmobil Research And Engineering Company | Method and system for multi-phase flow measurement |
US9651415B2 (en) * | 2013-12-23 | 2017-05-16 | Exxonmobil Research And Engineering Company | Method and system for monitoring distillation tray performance |
US20160018245A1 (en) * | 2014-07-17 | 2016-01-21 | Schlumberger Technology Corporation | Measurement Using A Multi-Core Optical Fiber |
CN107003473B (zh) | 2014-12-15 | 2020-09-11 | 直观外科手术操作公司 | 用于应变和温度分离的多芯光纤中的不同的纤芯 |
CN105371880B (zh) * | 2015-12-21 | 2017-07-18 | 山东大学 | 用于注塑制品检测的光纤光栅传感器嵌件及其制造方法 |
CN107870040B (zh) * | 2016-09-27 | 2021-05-04 | 福州高意通讯有限公司 | 一种全光纤傅立叶变换光谱仪 |
US9964698B1 (en) * | 2016-10-28 | 2018-05-08 | The Boeing Company | Multicore optical fiber cable strain enhancement |
CN108318062B (zh) * | 2018-03-08 | 2023-10-13 | 云南电网有限责任公司电力科学研究院 | 一种光纤光栅温湿度传感器及温湿度测量*** |
EP3627112A1 (en) * | 2018-09-20 | 2020-03-25 | Koninklijke Philips N.V. | Optical fiber sensor |
EP3627096A1 (en) * | 2018-09-20 | 2020-03-25 | Koninklijke Philips N.V. | Optical shape sensing system and method |
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-
2009
- 2009-02-17 US US12/372,495 patent/US8123400B2/en active Active
- 2009-03-31 EP EP09004761.4A patent/EP2110652B1/en active Active
- 2009-04-16 JP JP2009099468A patent/JP5574614B2/ja active Active
Also Published As
Publication number | Publication date |
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EP2110652A3 (en) | 2017-07-05 |
US8123400B2 (en) | 2012-02-28 |
EP2110652B1 (en) | 2019-09-25 |
JP2009258739A (ja) | 2009-11-05 |
US20090262779A1 (en) | 2009-10-22 |
EP2110652A2 (en) | 2009-10-21 |
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