JP6079114B2 - マルチモード光ファイバ - Google Patents
マルチモード光ファイバ Download PDFInfo
- Publication number
- JP6079114B2 JP6079114B2 JP2012223542A JP2012223542A JP6079114B2 JP 6079114 B2 JP6079114 B2 JP 6079114B2 JP 2012223542 A JP2012223542 A JP 2012223542A JP 2012223542 A JP2012223542 A JP 2012223542A JP 6079114 B2 JP6079114 B2 JP 6079114B2
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- core portion
- multimode optical
- core
- chlorine concentration
- 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.)
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- 239000013307 optical fiber Substances 0.000 title claims description 77
- 239000000460 chlorine Substances 0.000 claims description 59
- 229910052801 chlorine Inorganic materials 0.000 claims description 54
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 53
- 238000009826 distribution Methods 0.000 claims description 41
- 238000005253 cladding Methods 0.000 claims description 13
- 229910005793 GeO 2 Inorganic materials 0.000 claims description 11
- 238000005259 measurement Methods 0.000 claims description 10
- 239000000835 fiber Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 description 45
- 238000000034 method Methods 0.000 description 31
- 239000011521 glass Substances 0.000 description 28
- 239000007789 gas Substances 0.000 description 16
- 238000004519 manufacturing process Methods 0.000 description 12
- 230000018044 dehydration Effects 0.000 description 11
- 238000006297 dehydration reaction Methods 0.000 description 11
- 230000002093 peripheral effect Effects 0.000 description 11
- 230000008569 process Effects 0.000 description 11
- 230000003287 optical effect Effects 0.000 description 9
- 238000005245 sintering Methods 0.000 description 8
- 230000008859 change Effects 0.000 description 7
- 238000004891 communication Methods 0.000 description 7
- 230000001965 increasing effect Effects 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 7
- 239000005373 porous glass Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 4
- 239000010419 fine particle Substances 0.000 description 4
- YBMRDBCBODYGJE-UHFFFAOYSA-N germanium dioxide Chemical compound O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000004071 soot Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 229940119177 germanium dioxide Drugs 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 238000001947 vapour-phase growth Methods 0.000 description 2
- 229910003902 SiCl 4 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 238000004017 vitrification Methods 0.000 description 1
Images
Classifications
-
- 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
- C03C13/046—Multicomponent glass compositions
-
- 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
- C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
- C03B37/01446—Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering
-
- 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
- G02B6/028—Optical fibres with cladding with or without a coating with core or cladding having graded refractive index
- G02B6/0281—Graded index region forming part of the central core segment, e.g. alpha profile, triangular, trapezoidal core
-
- 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
- G02B6/028—Optical fibres with cladding with or without a coating with core or cladding having graded refractive index
- G02B6/0288—Multimode fibre, e.g. graded index core for compensating modal dispersion
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2201/00—Type of glass produced
- C03B2201/06—Doped silica-based glasses
- C03B2201/20—Doped silica-based glasses doped with non-metals other than boron or fluorine
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2201/00—Type of glass produced
- C03B2201/06—Doped silica-based glasses
- C03B2201/30—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi
- C03B2201/31—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with germanium
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2203/00—Fibre product details, e.g. structure, shape
- C03B2203/10—Internal structure or shape details
- C03B2203/22—Radial profile of refractive index, composition or softening point
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2203/00—Fibre product details, e.g. structure, shape
- C03B2203/10—Internal structure or shape details
- C03B2203/22—Radial profile of refractive index, composition or softening point
- C03B2203/26—Parabolic or graded index [GRIN] core profile
-
- 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
- C03C2201/00—Glass compositions
- C03C2201/06—Doped silica-based glasses
- C03C2201/08—Doped silica-based glasses containing boron or halide
- C03C2201/11—Doped silica-based glasses containing boron or halide containing chlorine
-
- 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
- C03C2201/00—Glass compositions
- C03C2201/06—Doped silica-based glasses
- C03C2201/30—Doped silica-based glasses containing metals
- C03C2201/31—Doped silica-based glasses containing metals containing germanium
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Dispersion Chemistry (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Glass Compositions (AREA)
Description
n(r)=n1(1−2Δ(r/a)α)1/2
で表される。
Claims (2)
- 所定軸に沿って伸びるとともに、GeO2が添加されたコア部と、前記コア部の外周に設けられ、前記コア部よりも低い屈折率を有するクラッド部を備えたマルチモード光ファイバであって、
当該マルチモード光ファイバの径方向の屈折率分布のうち前記コア部に相当する部分のα値が1.9〜2.2、前記クラッド部の基準領域に対する前記コア部の最大比屈折率差Δが0.8〜1.2%、前記コア部の直径2aが47.5〜52.5μmであり、
前記コア部には塩素が添加されており、当該マルチモード光ファイバの径方向に沿った、前記コア部における塩素濃度分布が、前記コア部の中心からその半径方向に距離a/2だけ離れた第1測定位置の塩素濃度よりも、前記コア部の中心からその半径方向に距離0.9aから1.0aだけ離れた範囲内の第2測定位置で塩素濃度が高くなる形状を有するマルチモード光ファイバ。 - 前記コア部における塩素濃度分布は、前記第1測定位置と前記第2測定位置に挟まれた範囲において、前記コア部の半径方向に沿って塩素濃度が単調増加する形状を有することを特徴とする請求項1に記載のマルチモード光ファイバ。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/253,445 | 2011-10-05 | ||
US13/253,445 US8565566B2 (en) | 2011-10-05 | 2011-10-05 | Multi-mode optical fiber |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2013083982A JP2013083982A (ja) | 2013-05-09 |
JP6079114B2 true JP6079114B2 (ja) | 2017-02-15 |
Family
ID=48017726
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012223542A Active JP6079114B2 (ja) | 2011-10-05 | 2012-10-05 | マルチモード光ファイバ |
Country Status (3)
Country | Link |
---|---|
US (1) | US8565566B2 (ja) |
JP (1) | JP6079114B2 (ja) |
CN (1) | CN103030269B (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8565567B2 (en) * | 2011-11-23 | 2013-10-22 | Sumitomo Electric Industries, Ltd. | Multi-mode optical fiber |
US9031371B2 (en) * | 2012-05-08 | 2015-05-12 | Sumitomo Electric Industries, Ltd. | Multi-mode optical fiber |
JP5916966B2 (ja) * | 2014-01-16 | 2016-05-11 | 古河電気工業株式会社 | 光ファイバ母材の製造方法および光ファイバの製造方法 |
US10893577B2 (en) * | 2016-09-19 | 2021-01-12 | Corning Incorporated | Millimeter wave heating of soot preform |
CN106371167A (zh) * | 2016-11-26 | 2017-02-01 | 长飞光纤光缆股份有限公司 | 一种高带宽多模光纤 |
JP7164384B2 (ja) * | 2018-10-04 | 2022-11-01 | 株式会社フジクラ | 光ファイバ用ガラス体の製造方法 |
Family Cites Families (29)
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JPS60239336A (ja) * | 1984-05-11 | 1985-11-28 | Furukawa Electric Co Ltd:The | 石英系多孔質ガラス母材の熱処理方法 |
JPS61197438A (ja) * | 1985-02-27 | 1986-09-01 | Furukawa Electric Co Ltd:The | 光フアイバ用多孔質母材の透明ガラス化方法 |
JPH0662312B2 (ja) * | 1986-01-20 | 1994-08-17 | 住友電気工業株式会社 | 光フアイバ用母材の製造方法 |
JPS62176941A (ja) | 1986-01-28 | 1987-08-03 | Sumitomo Electric Ind Ltd | 光フアイバ |
JP2988524B2 (ja) | 1988-09-19 | 1999-12-13 | 株式会社フジクラ | 光ファイバおよびその製造方法 |
US6535679B2 (en) * | 1997-01-16 | 2003-03-18 | Sumitomo Electric Industries, Ltd. | Optical fiber and method of manufacturing the same |
US6546757B1 (en) * | 1998-07-28 | 2003-04-15 | Brown University Research Foundation | Liquid spray pyrolysis method for the fabrication of optical fiber preforms, with reactant mixing |
DE29813318U1 (de) | 1998-07-28 | 1999-12-02 | Heraeus Quarzglas Gmbh, 63450 Hanau | Optisches Bauteil |
JP3343079B2 (ja) * | 1998-08-10 | 2002-11-11 | 信越化学工業株式会社 | 光ファイバコア部材と光ファイバ母材およびそれらの製造方法 |
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US6292612B1 (en) | 1999-06-07 | 2001-09-18 | Lucent Technologies Inc. | Multi-mode optical fiber having improved refractive index profile and devices comprising same |
JP2002053344A (ja) | 2000-08-07 | 2002-02-19 | Shin Etsu Chem Co Ltd | 光ファイバ用ガラス母材及び光ファイバ |
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JP3960887B2 (ja) | 2002-08-30 | 2007-08-15 | 古河電気工業株式会社 | 光ファイバ |
CN1682134A (zh) * | 2002-09-12 | 2005-10-12 | 旭硝子株式会社 | 塑料光纤 |
CN1198157C (zh) * | 2002-10-17 | 2005-04-20 | 长飞光纤光缆有限公司 | 改进的多模光纤及其制造方法 |
US6901197B2 (en) * | 2003-01-13 | 2005-05-31 | Sumitomo Electric Industries, Ltd. | Microstructured optical fiber |
EP1663890B1 (en) * | 2003-08-29 | 2020-09-23 | Corning Incorporated | Optical fiber containing an alkali metal oxide and methods and apparatus for manufacturing same |
WO2006010798A1 (en) | 2004-07-26 | 2006-02-02 | Photonium Oy | Multimode optical fiber with low differential mode delay |
US7787731B2 (en) | 2007-01-08 | 2010-08-31 | Corning Incorporated | Bend resistant multimode optical fiber |
US20090169163A1 (en) | 2007-12-13 | 2009-07-02 | Abbott Iii John Steele | Bend Resistant Multimode Optical Fiber |
FR2933779B1 (fr) | 2008-07-08 | 2010-08-27 | Draka Comteq France | Fibres optiques multimodes |
US8520994B2 (en) | 2008-09-17 | 2013-08-27 | Ofs Fitel, Llc | Bandwidth-maintaining multimode optical fibers |
US7769263B1 (en) * | 2009-02-02 | 2010-08-03 | Corning Incorporated | Optical fiber and a method for making such |
FR2949870B1 (fr) | 2009-09-09 | 2011-12-16 | Draka Compteq France | Fibre optique multimode presentant des pertes en courbure ameliorees |
FR2950156B1 (fr) | 2009-09-17 | 2011-11-18 | Draka Comteq France | Fibre optique multimode |
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CN102073098B (zh) * | 2010-11-29 | 2012-08-22 | 烽火通信科技股份有限公司 | 宽带多模光纤及其制造方法 |
US8565567B2 (en) * | 2011-11-23 | 2013-10-22 | Sumitomo Electric Industries, Ltd. | Multi-mode optical fiber |
-
2011
- 2011-10-05 US US13/253,445 patent/US8565566B2/en active Active
-
2012
- 2012-09-29 CN CN201210374637.8A patent/CN103030269B/zh active Active
- 2012-10-05 JP JP2012223542A patent/JP6079114B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
CN103030269A (zh) | 2013-04-10 |
JP2013083982A (ja) | 2013-05-09 |
US20130089296A1 (en) | 2013-04-11 |
US8565566B2 (en) | 2013-10-22 |
CN103030269B (zh) | 2016-04-27 |
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