JP2016200830A - 光ファイバ - Google Patents
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- JP2016200830A JP2016200830A JP2016141332A JP2016141332A JP2016200830A JP 2016200830 A JP2016200830 A JP 2016200830A JP 2016141332 A JP2016141332 A JP 2016141332A JP 2016141332 A JP2016141332 A JP 2016141332A JP 2016200830 A JP2016200830 A JP 2016200830A
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- 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
- G02B6/03616—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference
- G02B6/03638—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 3 layers only
- G02B6/03644—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 3 layers only arranged - + -
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- 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
- C03B37/01211—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube
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- 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
- C03B37/01225—Means for changing or stabilising the shape, e.g. diameter, of tubes or rods in general, e.g. collapsing
- C03B37/01228—Removal of preform material
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- 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
- C03B37/01225—Means for changing or stabilising the shape, e.g. diameter, of tubes or rods in general, e.g. collapsing
- C03B37/0124—Means for reducing the diameter of rods or tubes by drawing, e.g. for preform draw-down
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- 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]
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- 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]
- C03B37/018—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] by glass deposition on a glass substrate, e.g. by inside-, modified-, plasma-, or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD], i.e. by thin layer coating on the inside or outside of a glass tube or on a glass rod
- C03B37/01807—Reactant delivery systems, e.g. reactant deposition burners
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- 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]
- C03B37/018—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] by glass deposition on a glass substrate, e.g. by inside-, modified-, plasma-, or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD], i.e. by thin layer coating on the inside or outside of a glass tube or on a glass rod
- C03B37/01861—Means for changing or stabilising the diameter or form of tubes or rods
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- 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]
- C03B37/018—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] by glass deposition on a glass substrate, e.g. by inside-, modified-, plasma-, or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD], i.e. by thin layer coating on the inside or outside of a glass tube or on a glass rod
- C03B37/01861—Means for changing or stabilising the diameter or form of tubes or rods
- C03B37/01869—Collapsing
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- 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
- C03B37/027—Fibres composed of different sorts of glass, e.g. glass optical fibres
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- 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
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- 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
-
- 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
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- 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
- G02B6/03605—Highest refractive index not on central axis
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- 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
- G02B6/03605—Highest refractive index not on central axis
- G02B6/03611—Highest index adjacent to central axis region, e.g. annular core, coaxial ring, centreline depression affecting waveguiding
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- 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
- G02B6/03616—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference
- G02B6/03622—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 2 layers only
- G02B6/03627—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 2 layers only arranged - +
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- 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
- G02B6/03616—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference
- G02B6/03638—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 3 layers only
- G02B6/0365—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 3 layers only arranged - - +
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- 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
- C03B2201/08—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant
- C03B2201/12—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant doped with fluorine
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- 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
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- 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
- C03B2201/50—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with alkali metals
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- 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
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- 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
- G02B6/03616—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference
- G02B6/03622—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 2 layers only
- G02B6/03633—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 2 layers only arranged - -
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- Geochemistry & Mineralogy (AREA)
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Glass Compositions (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
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Abstract
【解決手段】本発明の光ファイバは、コア領域と該コア領域を取り囲むクラッド領域とを有する光ファイバであって、コア領域にアルカリ金属元素及び塩素元素が添加され、コア領域における塩素元素濃度の最低値が1000原子ppm以上であり、コア領域における塩素元素濃度の平均値が13000原子ppm以下であり、コア領域におけるアルカリ金属の濃度の平均値が0.2原子ppm以上50原子ppm以下であり、コア領域に濃度15000原子ppm以下のフッ素元素が添加されており、コア領域中のアルカリ金属元素、塩素元素及びフッ素元素以外のドーパントの平均濃度がコア領域における塩素元素濃度の平均値とフッ素元素濃度の平均値との和より小さく、0.1気圧の水素分圧下に温度40℃で3ヶ月に亘る水素処理により波長範囲1420〜1610nmにおいて損失ピークの発生が無い。
【選択図】図3
Description
ここで「原子ppm」とは、100万個のSiO2中に含まれる添加された原子の個数を表す。
Claims (4)
- コア領域と該コア領域を取り囲むクラッド領域とを有する光ファイバであって、
前記コア領域にアルカリ金属元素及び塩素元素が添加され、
前記コア領域における塩素元素濃度の最低値が1000原子ppm以上であり、
前記コア領域における塩素元素濃度の平均値が13000原子ppm以下であり、
前記コア領域におけるアルカリ金属の濃度の平均値が0.2原子ppm以上50原子ppm以下であり、
前記コア領域にさらに濃度15000原子ppm以下のフッ素元素が添加されており、
前記コア領域中のアルカリ金属元素、塩素元素及びフッ素元素以外のドーパントの平均濃度が、前記コア領域における塩素元素濃度の平均値とフッ素元素濃度の平均値との和より小さく、
0.1気圧の水素分圧下に温度40℃で3ヶ月に亘る水素処理により波長範囲1420〜1610nmにおいて損失ピークの発生が無い光ファイバ。 - 1気圧の水素分圧下に温度80℃で20時間に亘り水素処理を実施した後の波長1.38μm帯のOH基吸収による損失増が0.15dB/km以下である、
請求項1に記載の光ファイバ。 - 前記コア領域における塩素濃度が2000原子ppm以上である、
請求項1または2に記載の光ファイバ。 - 前記コア領域中のアルカリ金属元素の平均濃度が2原子ppm以下である、
請求項3に記載の光ファイバ。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011091250 | 2011-04-15 | ||
JP2011091250 | 2011-04-15 |
Related Parent Applications (1)
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JP2012003331A Division JP5974488B2 (ja) | 2011-04-15 | 2012-01-11 | 光ファイバおよび光ファイバ母材 |
Publications (2)
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JP2016200830A true JP2016200830A (ja) | 2016-12-01 |
JP6187644B2 JP6187644B2 (ja) | 2017-08-30 |
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JP2012003331A Active JP5974488B2 (ja) | 2011-04-15 | 2012-01-11 | 光ファイバおよび光ファイバ母材 |
JP2016141332A Active JP6187644B2 (ja) | 2011-04-15 | 2016-07-19 | 光ファイバ |
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JP2012003331A Active JP5974488B2 (ja) | 2011-04-15 | 2012-01-11 | 光ファイバおよび光ファイバ母材 |
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Country | Link |
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US (2) | US9097834B2 (ja) |
EP (1) | EP2511741B1 (ja) |
JP (2) | JP5974488B2 (ja) |
CN (1) | CN102730977B (ja) |
DK (1) | DK2511741T3 (ja) |
Families Citing this family (39)
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US9139466B2 (en) * | 2011-01-20 | 2015-09-22 | Sumitomo Electric Industries, Ltd. | Optical fiber preform, optical fiber, and method of manufacturing optical fiber preform |
JP5974488B2 (ja) * | 2011-04-15 | 2016-08-23 | 住友電気工業株式会社 | 光ファイバおよび光ファイバ母材 |
JP5949016B2 (ja) * | 2011-06-15 | 2016-07-06 | 住友電気工業株式会社 | 光ファイバ製造方法 |
JP2013032241A (ja) * | 2011-08-01 | 2013-02-14 | Sumitomo Electric Ind Ltd | 光ファイバ母材製造方法 |
JP6035780B2 (ja) * | 2011-08-25 | 2016-11-30 | 住友電気工業株式会社 | 光ファイバ |
JP6269782B2 (ja) * | 2011-08-25 | 2018-01-31 | 住友電気工業株式会社 | 光ファイバ |
JP6136261B2 (ja) | 2012-01-23 | 2017-05-31 | 住友電気工業株式会社 | 光ファイバ |
DK2829522T3 (en) * | 2012-03-21 | 2018-11-05 | Sumitomo Electric Industries | PROCEDURE FOR MANUFACTURING OPTICAL FIBERS |
JP5625037B2 (ja) | 2012-03-23 | 2014-11-12 | 株式会社フジクラ | ガラス母材の製造方法 |
JP6048105B2 (ja) | 2012-12-12 | 2016-12-21 | 住友電気工業株式会社 | 光ファイバ製造方法および光ファイバ |
JP2014118334A (ja) * | 2012-12-18 | 2014-06-30 | Sumitomo Electric Ind Ltd | 光ファイバ製造方法 |
US9057814B2 (en) * | 2013-03-28 | 2015-06-16 | Corning Incorporated | Large effective area fiber with low bending losses |
JP2014214079A (ja) * | 2013-04-30 | 2014-11-17 | 住友電気工業株式会社 | 光ファイバ母材 |
JP6268758B2 (ja) * | 2013-06-10 | 2018-01-31 | 住友電気工業株式会社 | 光ファイバ |
CN105473518B (zh) | 2013-08-15 | 2019-11-05 | Agc株式会社 | 低散射石英玻璃和石英玻璃的热处理方法 |
JP6337509B2 (ja) * | 2014-02-24 | 2018-06-06 | 住友電気工業株式会社 | 光ファイバ母材製造方法 |
GB2526590A (en) * | 2014-05-29 | 2015-12-02 | Fibercore Ltd | Optical fiber and method of producing an optical fiber |
JP6579107B2 (ja) * | 2014-07-22 | 2019-09-25 | 住友電気工業株式会社 | 光ファイバ母材製造方法および光ファイバ母材 |
JP5995923B2 (ja) | 2014-08-06 | 2016-09-21 | 古河電気工業株式会社 | 光ファイバ母材および光ファイバの製造方法 |
US9658395B2 (en) * | 2014-10-21 | 2017-05-23 | Ofs Fitel, Llc | Low loss optical fiber and method of making the same |
JP6551109B2 (ja) * | 2014-11-20 | 2019-07-31 | 住友電気工業株式会社 | 光ファイバ |
EP3276384B1 (en) * | 2015-03-25 | 2022-05-11 | Sumitomo Electric Industries, Ltd. | Multicore optical fiber |
JP6613604B2 (ja) * | 2015-04-30 | 2019-12-04 | 住友電気工業株式会社 | 光ファイバ母材 |
US9919955B2 (en) * | 2015-07-24 | 2018-03-20 | Ofs Fitel, Llc | Optical fiber with low loss and nanoscale structurally homogeneous core |
US9588287B2 (en) * | 2015-08-05 | 2017-03-07 | Sumitomo Electric Industries, Ltd. | Multimode optical fiber |
JP6551137B2 (ja) * | 2015-10-15 | 2019-07-31 | 住友電気工業株式会社 | 光ファイバ |
JP6620633B2 (ja) * | 2016-03-25 | 2019-12-18 | 住友電気工業株式会社 | 光ファイバ |
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US20150285992A1 (en) | 2015-10-08 |
JP6187644B2 (ja) | 2017-08-30 |
EP2511741B1 (en) | 2021-10-20 |
EP2511741A3 (en) | 2018-01-10 |
CN102730977B (zh) | 2016-06-29 |
JP5974488B2 (ja) | 2016-08-23 |
US9322990B2 (en) | 2016-04-26 |
US20120263427A1 (en) | 2012-10-18 |
EP2511741A2 (en) | 2012-10-17 |
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US9097834B2 (en) | 2015-08-04 |
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