JP2019144531A - 温度及び歪みの同時測定のための光ファイバ - Google Patents
温度及び歪みの同時測定のための光ファイバ Download PDFInfo
- Publication number
- JP2019144531A JP2019144531A JP2018227921A JP2018227921A JP2019144531A JP 2019144531 A JP2019144531 A JP 2019144531A JP 2018227921 A JP2018227921 A JP 2018227921A JP 2018227921 A JP2018227921 A JP 2018227921A JP 2019144531 A JP2019144531 A JP 2019144531A
- Authority
- JP
- Japan
- Prior art keywords
- dopant concentration
- optical fiber
- dopant
- brillouin scattering
- peak
- 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
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 46
- 238000005259 measurement Methods 0.000 title abstract description 12
- 239000002019 doping agent Substances 0.000 claims abstract description 122
- 238000001228 spectrum Methods 0.000 claims abstract description 17
- 230000003287 optical effect Effects 0.000 claims abstract description 11
- 230000003993 interaction Effects 0.000 claims abstract description 7
- 239000000835 fiber Substances 0.000 claims description 35
- 230000007423 decrease Effects 0.000 claims description 14
- 239000011521 glass Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052731 fluorine Inorganic materials 0.000 claims description 4
- 239000011737 fluorine Substances 0.000 claims description 4
- 229910052732 germanium Inorganic materials 0.000 claims description 4
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical group [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 4
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052810 boron oxide Inorganic materials 0.000 claims 1
- 125000001153 fluoro group Chemical group F* 0.000 claims 1
- 239000007789 gas Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000005229 chemical vapour deposition Methods 0.000 description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 3
- 229920003266 Leaf® Polymers 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910005793 GeO 2 Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Images
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
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
- C03B37/01262—Depositing additional preform material as liquids or solutions, e.g. solution doping of preform tubes or rods
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C13/00—Fibre or filament compositions
- C03C13/04—Fibre optics, e.g. core and clad fibre compositions
- C03C13/045—Silica-containing oxide glass compositions
-
- 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
-
- 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
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2213/00—Glass fibres or filaments
-
- 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
- G01K11/322—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 using Brillouin scattering
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Optical Transform (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Glass Compositions (AREA)
Abstract
Description
この実施例では、(そのシミュレーションされたブリルアン散乱プロファイルは図2Bに示される)図2Aに示すドーパントプロファイルは、実際のブリルアン散乱を測定するように実際に照射を受けた。実際のプロファイルは、図4に示され、主要ピークの約97%の強度を有し10.8GHzより高い周波数に位置する強ピークを示す。
Claims (12)
- 光ファイバのコアにおいて複数のドーパント濃度プロファイルを備える光ファイバであって、前記複数のドーパント濃度プロファイルが第1のドーパント濃度プロファイル及び第2のドーパント濃度プロファイルを含み、前記第1のドーパント濃度プロファイルがそのベース屈折率を上回るように前記コアの屈折率を増加させる第1のドーパントから取得され、前記第2のドーパント濃度プロファイルがそのベース屈折率を下回るように前記コアの屈折率を低下させる第2のドーパントから取得され、
前記第1のドーパント濃度及び前記第2のドーパント濃度が段階的に各々変動し、前記第2のドーパント濃度に対する前記第1のドーパント濃度の割合が所与の波長における基本光学モードと複数の音響モードとの相互作用をもたらすように操作可能であり、それによって、一次ピークのブリルアン散乱強度に対する二次、三次又は四次ピークのブリルアン散乱強度の割合をブリルアン散乱スペクトルにおいて0.4より大きくなるように増加させる、光ファイバ。 - 前記光ファイバが単一モードファイバ又は複数モード光ファイバである、請求項1に記載の光ファイバ。
- 前記所与の波長が400から2100ナノメートルで変動する、請求項1に記載の光ファイバ。
- 前記第1のドーパントがゲルマニウム、五酸化リン、チタニア、アルミナ又はそれらの組合せである、請求項1に記載の光ファイバ。
- 前記第2のドーパントがフッ素、ホウ素酸化物又はそれらの組合せである、請求項1に記載の光ファイバ。
- 一次ピークのブリルアン散乱強度に対する二次、三次又は四次ピークのブリルアン散乱強度の前記割合が0.5より大きい、請求項1に記載の光ファイバ。
- 一次ピークのブリルアン散乱強度に対する二次、三次又は四次ピークのブリルアン散乱強度の前記割合が0.75より大きい、請求項1に記載の光ファイバ。
- 前記第1のドーパント濃度及び前記第2のドーパント濃度が前記コアの中央長軸に対して双方とも対称的である、請求項1に記載の光ファイバ。
- 前記第1のドーパント濃度及び前記第2のドーパント濃度の段階的な変動が、前記第1のドーパント濃度及び前記第2のドーパント濃度の各々において3以上の急激な増加及び3以上の急激な減少を含む、請求項1に記載の光ファイバ。
- 前記第1のドーパント濃度及び前記第2のドーパント濃度の段階的な変動が、前記第1のドーパント濃度及び前記第2のドーパント濃度の各々において4以上の急激な増加及び4以上の急激な減少を含む、請求項1に記載の光ファイバ。
- 単一の光ファイバが温度及び歪みを同時に測定するセンサとして用いられる、請求項1に記載の光ファイバ。
- 第1のドーパント及び第2のドーパントでガラス管の内面をコーティングするステップと、
固体プリフォームを形成するように前記ガラス管を取り潰すステップと、
光ファイバを形成するように前記固体プリフォームを引き込むステップとを備え、前記光ファイバにおいて、前記第1のドーパント濃度及び前記第2のドーパント濃度が段階的に各々変動し、前記第2のドーパント濃度に対する前記第1のドーパント濃度の割合が所与の波長における基本光学モードと複数の音響モードとの相互作用をもたらすように操作可能であり、それによって、一次ピークのブリルアン散乱強度に対する二次、三次又は四次ピークのブリルアン散乱強度の割合をブリルアン散乱スペクトルにおいて0.4より大きくなるように増加させる、方法。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201762598515P | 2017-12-14 | 2017-12-14 | |
US62/598,515 | 2017-12-14 | ||
US16/129,159 US10401563B2 (en) | 2017-12-14 | 2018-09-12 | Optical fibers for simultaneous measurement of temperature and strain |
US16/129,159 | 2018-09-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2019144531A true JP2019144531A (ja) | 2019-08-29 |
JP6878384B2 JP6878384B2 (ja) | 2021-05-26 |
Family
ID=64665561
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018227921A Active JP6878384B2 (ja) | 2017-12-14 | 2018-12-05 | 温度及び歪みの同時測定のための光ファイバ |
Country Status (4)
Country | Link |
---|---|
US (1) | US10401563B2 (ja) |
EP (1) | EP3499202B1 (ja) |
JP (1) | JP6878384B2 (ja) |
CN (1) | CN109959987B (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11336073B2 (en) | 2018-11-29 | 2022-05-17 | Ofs Fitel, Llc | Brillouin dynamic grating generation using dual-Brillouin-peak optical fiber |
CN114252141B (zh) * | 2021-12-13 | 2022-12-13 | 江南大学 | 基于光纤拍频技术的双参数检测数字传感***及方法 |
CN118111503A (zh) * | 2024-03-05 | 2024-05-31 | 广州天越电子科技有限公司 | 用于双参量动态分布光纤传感的多频点信号探测*** |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3935499B2 (ja) * | 2004-07-26 | 2007-06-20 | 松下電器産業株式会社 | 画像処理方法、画像処理装置および画像処理プログラム |
US20060185397A1 (en) * | 2005-02-22 | 2006-08-24 | Furukawa Electric North America, Inc. | Multimode optical fiber and method for manufacturing same |
WO2008001937A1 (fr) * | 2006-06-30 | 2008-01-03 | The Furukawa Electric Co., Ltd. | Fibre optique |
JP4721359B2 (ja) * | 2006-09-12 | 2011-07-13 | 日東電工株式会社 | 透明導電性積層体及びそれを備えたタッチパネル |
EP2110651B1 (en) * | 2008-04-18 | 2017-06-07 | OZ Optics Ltd. | Method and system for simultaneous measurement of strain and temperature |
US8744782B2 (en) * | 2010-11-16 | 2014-06-03 | Corning Incorporated | System and method for simultaneously determining strain and temperature characteristics of an object |
US9835502B2 (en) * | 2012-01-19 | 2017-12-05 | Draka Comteq B.V. | Temperature and strain sensing optical fiber and temperature and strain sensor |
FR2994035B1 (fr) * | 2012-07-24 | 2014-08-08 | Onera (Off Nat Aerospatiale) | Amplificateur a fibre optique a seuil brillouin eleve et methode de fabrication d'un tel amplificateur |
JP6165821B2 (ja) * | 2014-11-03 | 2017-07-19 | オーエフエス ファイテル,エルエルシー | 分布型ブリルアンセンサー |
CN104865637B (zh) * | 2015-06-08 | 2017-11-17 | 华中科技大学 | 一种受激布里渊散射效应增强型光纤 |
CN105865655B (zh) * | 2016-05-25 | 2018-09-07 | 华中科技大学 | 一种基于光纤声光模互作用的温度和应变同时测量方法 |
-
2018
- 2018-09-12 US US16/129,159 patent/US10401563B2/en active Active
- 2018-12-05 JP JP2018227921A patent/JP6878384B2/ja active Active
- 2018-12-12 CN CN201811516168.2A patent/CN109959987B/zh active Active
- 2018-12-14 EP EP18212584.9A patent/EP3499202B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
US10401563B2 (en) | 2019-09-03 |
CN109959987A (zh) | 2019-07-02 |
EP3499202A1 (en) | 2019-06-19 |
CN109959987B (zh) | 2022-08-16 |
EP3499202B1 (en) | 2021-11-03 |
JP6878384B2 (ja) | 2021-05-26 |
US20190187367A1 (en) | 2019-06-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6817957B2 (ja) | フッ素および塩素が共ドープされたコア領域を有する低損失光ファイバ | |
JP5636151B2 (ja) | 多波長、多モード光ファイバ | |
RU2706849C2 (ru) | Оптическое волокно с высоким содержанием хлора и малым коэффициентом затухания | |
RU2736023C2 (ru) | Легированное бромом оптическое волокно | |
JP6298893B2 (ja) | 損失低下を示す、台形コアを有するシングルモードファイバ | |
JP6878384B2 (ja) | 温度及び歪みの同時測定のための光ファイバ | |
JP2021503630A (ja) | 2種類以上のハロゲンが共ドープされたコアを有する低損失の光ファイバ | |
CN105556353B (zh) | 光纤及其制造方法 | |
JP2007536580A5 (ja) | ||
CN100371747C (zh) | 具有波导结构的弯曲不敏感光纤 | |
CN101861537A (zh) | 光纤及其制造方法 | |
US6947650B1 (en) | Long wavelength, pure silica core single mode fiber and method of forming the same | |
CN107632338A (zh) | 抗弯曲单模光纤及其制作方法 | |
JP2014222353A (ja) | アルミニウムドープト光ファイバ | |
CN103364870B (zh) | 一种单模光纤及其制造方法 | |
US10663326B2 (en) | Rayleigh scattering based distributed fiber sensors with optimized scattering coefficients | |
WO2015200191A1 (en) | Low attenuation fiber with viscosity matched core and inner clad | |
JPH0330121B2 (ja) | ||
US8724951B2 (en) | Optical fiber | |
CN103033874A (zh) | 一种弯曲不敏感单模光纤及其制备方法 | |
US20170363806A1 (en) | Methods of manufacturing wide-band multi-mode optical fibers and core preforms for the same | |
JP2024512311A (ja) | 吸収の寄与の低減によって減衰が低減された光ファイバ | |
Unger et al. | Multi-core optical fibers with adapted functionalities for imaging and sensing applications | |
Wen et al. | Fabrication and characteristics of character-1 shaped reduced diameter polarization-maintaining optical fiber |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20190411 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20200212 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20200218 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20200515 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20201105 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20210205 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20210401 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20210428 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6878384 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |