IN2014DE03398A - - Google Patents

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Publication number
IN2014DE03398A
IN2014DE03398A IN3398DE2014A IN2014DE03398A IN 2014DE03398 A IN2014DE03398 A IN 2014DE03398A IN 3398DE2014 A IN3398DE2014 A IN 3398DE2014A IN 2014DE03398 A IN2014DE03398 A IN 2014DE03398A
Authority
IN
India
Prior art keywords
silica glass
core rod
added
core
dopant
Prior art date
Application number
Other languages
English (en)
Inventor
Dai Inoue
Hiroshi Oyamada
Original Assignee
Shinetsu Chemical Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shinetsu Chemical Co filed Critical Shinetsu Chemical Co
Publication of IN2014DE03398A publication Critical patent/IN2014DE03398A/en

Links

Classifications

    • 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
    • C03B37/01453—Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering for doping the preform with flourine
    • 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
    • C03B37/01228—Removal of preform material
    • 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
    • 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
    • C03B37/01245—Means for reducing the diameter of rods or tubes by drawing, e.g. for preform draw-down by drawing and collapsing
    • 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
    • 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]
    • C03B37/01466—Means for changing or stabilising the diameter or form of tubes or rods
    • 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
    • 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
    • C03B2203/23—Double or multiple optical cladding profiles
    • 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
    • G02B6/0283—Graded index region external to the central core segment, e.g. sloping layer or triangular or trapezoidal layer
    • 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 - - +

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Glass Compositions (AREA)
IN3398DE2014 2013-11-28 2014-11-21 IN2014DE03398A (enrdf_load_stackoverflow)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013245500 2013-11-28
JP2014206521A JP6310378B2 (ja) 2013-11-28 2014-10-07 光ファイバ用シリカガラス母材の製造方法

Publications (1)

Publication Number Publication Date
IN2014DE03398A true IN2014DE03398A (enrdf_load_stackoverflow) 2015-08-21

Family

ID=51900237

Family Applications (1)

Application Number Title Priority Date Filing Date
IN3398DE2014 IN2014DE03398A (enrdf_load_stackoverflow) 2013-11-28 2014-11-21

Country Status (5)

Country Link
US (1) US20160214884A1 (enrdf_load_stackoverflow)
EP (1) EP2878583B1 (enrdf_load_stackoverflow)
JP (1) JP6310378B2 (enrdf_load_stackoverflow)
CN (1) CN104671658B (enrdf_load_stackoverflow)
IN (1) IN2014DE03398A (enrdf_load_stackoverflow)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6124778B2 (ja) * 2012-12-28 2017-05-10 信越化学工業株式会社 光ファイバ、光ファイバ用シリカガラス母材、および光ファイバの製造方法
EP3359498B1 (en) * 2015-10-09 2020-12-23 Prysmian S.p.A. Method for manufacturing a glass core preform for optical fibres
US11780762B2 (en) * 2016-03-03 2023-10-10 Prysmian S.P.A. Method for manufacturing a preform for optical fibers
EP3263533B1 (de) * 2016-06-28 2019-05-08 Heraeus Quarzglas GmbH & Co. KG Seltenerdmetall-dotiertes quarzglas sowie verfahren für dessen herstellung
US9989699B2 (en) * 2016-10-27 2018-06-05 Corning Incorporated Low bend loss single mode optical fiber
EP3778504A1 (en) * 2019-08-13 2021-02-17 Sterlite Technologies Limited Method for sintering of optical fibre preform
JP7332559B2 (ja) * 2020-09-16 2023-08-23 信越化学工業株式会社 光ファイバ用ガラス母材の製造方法
JP7722858B2 (ja) * 2021-07-20 2025-08-13 株式会社フジクラ 光ファイバ母材の製造方法
CN114195379A (zh) * 2021-12-21 2022-03-18 通鼎互联信息股份有限公司 一种低损耗截止波长位移单模光纤的拉丝方法
CN115010360B (zh) * 2022-07-14 2024-04-09 中天科技精密材料有限公司 一种光纤预制棒的制备方法、光纤预制棒及光纤

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5217516A (en) * 1985-12-27 1993-06-08 Sumitomo Electric Industries, Ltd. Method of making optical glass article
EP0851247A3 (en) * 1996-12-27 2000-06-14 Sumitomo Electric Industries, Ltd Dispersion-shifted optical fibre and method of manufacturing the same
US6535679B2 (en) * 1997-01-16 2003-03-18 Sumitomo Electric Industries, Ltd. Optical fiber and method of manufacturing the same
EP1341011A1 (en) * 2002-02-28 2003-09-03 FITEL USA CORPORATION (a Delaware Corporation) Dispersion-compensating fiber
US7221838B2 (en) * 2004-06-23 2007-05-22 Furukawa Electric North America, Inc. Optical fibers with reduced splice loss and methods for making same
WO2009096557A1 (ja) * 2008-01-30 2009-08-06 Asahi Glass Co., Ltd. エネルギー伝送用または紫外光伝送用光ファイバプリフォームおよびその製造方法
US7676129B1 (en) * 2008-11-18 2010-03-09 Corning Incorporated Bend-insensitive fiber with two-segment core
EP2330447A1 (en) * 2009-11-18 2011-06-08 Sehf-Korea Co., Ltd. Low bend loss optical fibre
CN102741183B (zh) * 2010-03-03 2016-02-03 株式会社藤仓 石英多孔质体的制造方法、光纤母材的制造方法、石英多孔质体及光纤母材
JP2012078804A (ja) * 2010-09-06 2012-04-19 Shin Etsu Chem Co Ltd 光ファイバ、光ファイバプリフォームおよびその製造方法
JP5590617B2 (ja) * 2011-06-03 2014-09-17 信越化学工業株式会社 コアから離隔した位置に低屈折率部を有する光ファイバ用母材の製造方法
US9873629B2 (en) * 2011-06-30 2018-01-23 Corning Incorporated Methods for producing optical fiber preforms with low index trenches
US8768129B2 (en) * 2011-09-21 2014-07-01 Ofs Fitel, Llc Optimized ultra large area optical fibers
KR101273801B1 (ko) * 2011-10-17 2013-06-11 에쓰이에이치에프코리아 (주) 구부림 손실 강화 광섬유
KR20130116009A (ko) * 2012-04-12 2013-10-22 신에쓰 가가꾸 고교 가부시끼가이샤 광섬유
DE102012007520B3 (de) * 2012-04-17 2013-08-08 Heraeus Quarzglas Gmbh & Co. Kg Verfahren für die Herstellung eines zylinderförmigen Bauteils aus Fluor enthaltendem synthetischem Quarzglas
JP2013230961A (ja) * 2012-05-02 2013-11-14 Shin-Etsu Chemical Co Ltd 光ファイバプリフォームの製造方法
JP6124778B2 (ja) * 2012-12-28 2017-05-10 信越化学工業株式会社 光ファイバ、光ファイバ用シリカガラス母材、および光ファイバの製造方法
US9110220B2 (en) * 2013-07-16 2015-08-18 Corning Incorporated High bandwidth MMF and method of making

Also Published As

Publication number Publication date
EP2878583B1 (en) 2017-01-11
EP2878583A1 (en) 2015-06-03
CN104671658B (zh) 2019-09-06
US20160214884A1 (en) 2016-07-28
CN104671658A (zh) 2015-06-03
JP6310378B2 (ja) 2018-04-11
JP2015127290A (ja) 2015-07-09

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