JP2009258739A - 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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- JP2009258739A JP2009258739A JP2009099468A JP2009099468A JP2009258739A JP 2009258739 A JP2009258739 A JP 2009258739A JP 2009099468 A JP2009099468 A JP 2009099468A JP 2009099468 A JP2009099468 A JP 2009099468A JP 2009258739 A JP2009258739 A JP 2009258739A
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- optical fiber
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- 239000000835 fiber Substances 0.000 title claims abstract description 99
- 239000002019 doping agent Substances 0.000 claims abstract description 26
- 239000013307 optical fiber Substances 0.000 claims description 21
- 229910052739 hydrogen Inorganic materials 0.000 claims description 17
- 239000001257 hydrogen Substances 0.000 claims description 17
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 15
- 238000005253 cladding Methods 0.000 claims description 13
- 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
- 238000005259 measurement Methods 0.000 abstract description 12
- 238000010168 coupling process Methods 0.000 abstract description 6
- 238000005859 coupling reaction Methods 0.000 abstract description 6
- 230000008859 change Effects 0.000 description 32
- 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
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008878 coupling Effects 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
- 150000002431 hydrogen Chemical class 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
- 238000009529 body temperature measurement Methods 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
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- 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)
Abstract
【解決手段】センサ用途のためのツインコアファイバが開発された。それは歪と温度を分離し、同じ時間および位置で両方の測定パラメータを得ることに特に有用である。それは高湿度環境で温度を測定するためにも特に有用である。ツインコアファイバは二つのコアを有し、それぞれのコアは異なるドーパント形態を有する。また、それぞれのコアは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む。
【選択図】図6
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 (10)
- 一条の光ファイバが、
ファイバの長手方向に沿って延びる第一および第二のドープされたコアを含み、
前記それぞれのコアが異なるドーパント形態を有し、さらに、
前記それぞれのコアが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、そして、
前記第一および第二のコアを取り囲むクラッドを含む、
ことを特徴とする光ファイバ。 - 前記グレーティングが入射光信号を互いに異なる状態で反射し、前記グレーティングから反射された波長の差が所期目標パラメータにしたがい変化するように構成されることを特徴とする請求項1に記載の光ファイバ。
- 前記所期目標パラメータが温度であることを特徴とする請求項2に記載の光ファイバ。
- 前記グレーティングから反射される波長の差が実質的に水素環境に影響されないことを特徴とする請求項2に記載の光ファイバ。
- 前記所期目標パラメータが歪であることを特徴とする請求項2に記載の光ファイバ。
- 濃度が異なる同一のドーパントが前記第一およ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。
- 前記それぞれのコアのドーパントが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がドープされ、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がドープされることを特徴とする請求項6に記載の光ファイバ。
- 異なるドーパントが前記第一、および前記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がアンチモンであって、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がドープされており、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って、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がドープされることを特徴とする請求項8に記載の光ファイバ。
- 光ファイバを製造する方法であって、
前記第一のコアにドーパントをドープし、
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し、
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し、そして、
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、
ステップからな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 true JP2009258739A (ja) | 2009-11-05 |
JP5574614B2 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) |
Cited By (7)
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WO2013141112A1 (ja) * | 2012-03-23 | 2013-09-26 | 住友電気工業株式会社 | 干渉測定装置 |
JP2014025928A (ja) * | 2012-07-26 | 2014-02-06 | J-Fiber Gmbh | ファイバブラッググレーティングを有するマルチコア光導波路によって温度、ひずみ、および/またはねじれを検出するためのセンサファイバ |
JP2014182381A (ja) * | 2013-03-15 | 2014-09-29 | Ofs Fitel Llc | 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 |
JP2015514973A (ja) * | 2012-03-07 | 2015-05-21 | オーエフエス ファイテル,エルエルシー | 回折格子に基づくセンサ |
JP2015531861A (ja) * | 2012-08-09 | 2015-11-05 | コーニング インコーポレイテッド | 分布ファイバセンサ及びシステムのための2コア光ファイバ |
KR102127897B1 (ko) * | 2019-01-21 | 2020-06-29 | 한국광기술원 | 멀티코어 광섬유를 포함하는 전류 센싱 시스템 및 그의 센싱 방법 |
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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 |
US10036849B2 (en) | 2013-03-15 | 2018-07-31 | Ofs Fitel, Llc | Compensation of fiber lensing effect during grating fabrication in multicore fiber |
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 |
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015514973A (ja) * | 2012-03-07 | 2015-05-21 | オーエフエス ファイテル,エルエルシー | 回折格子に基づくセンサ |
WO2013141112A1 (ja) * | 2012-03-23 | 2013-09-26 | 住友電気工業株式会社 | 干渉測定装置 |
JP2014025928A (ja) * | 2012-07-26 | 2014-02-06 | J-Fiber Gmbh | ファイバブラッググレーティングを有するマルチコア光導波路によって温度、ひずみ、および/またはねじれを検出するためのセンサファイバ |
JP2015531861A (ja) * | 2012-08-09 | 2015-11-05 | コーニング インコーポレイテッド | 分布ファイバセンサ及びシステムのための2コア光ファイバ |
JP2019144266A (ja) * | 2012-08-09 | 2019-08-29 | コーニング インコーポレイテッド | 分布ファイバセンサ及びシステムのための2コア光ファイバ |
JP2014182381A (ja) * | 2013-03-15 | 2014-09-29 | Ofs Fitel Llc | 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 |
CN113167603A (zh) * | 2018-09-20 | 2021-07-23 | 皇家飞利浦有限公司 | 光纤传感器 |
JP2021535423A (ja) * | 2018-09-20 | 2021-12-16 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | 光ファイバセンサ |
US11473943B2 (en) | 2018-09-20 | 2022-10-18 | Fujikura Ltd. | Optical fiber sensor |
JP7192094B2 (ja) | 2018-09-20 | 2022-12-19 | コーニンクレッカ フィリップス エヌ ヴェ | 光ファイバセンサ |
KR102127897B1 (ko) * | 2019-01-21 | 2020-06-29 | 한국광기술원 | 멀티코어 광섬유를 포함하는 전류 센싱 시스템 및 그의 센싱 방법 |
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EP2110652B1 (en) | 2019-09-25 |
US20090262779A1 (en) | 2009-10-22 |
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