DE69006940D1 - Verfahren zur Wärmebehandlung von Glasfaservorformen. - Google Patents

Verfahren zur Wärmebehandlung von Glasfaservorformen.

Info

Publication number
DE69006940D1
DE69006940D1 DE90112460T DE69006940T DE69006940D1 DE 69006940 D1 DE69006940 D1 DE 69006940D1 DE 90112460 T DE90112460 T DE 90112460T DE 69006940 T DE69006940 T DE 69006940T DE 69006940 D1 DE69006940 D1 DE 69006940D1
Authority
DE
Germany
Prior art keywords
heat treatment
glass fiber
fiber preforms
preforms
glass
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.)
Expired - Fee Related
Application number
DE90112460T
Other languages
English (en)
Other versions
DE69006940T2 (de
Inventor
Shinji Ishikawa
Yuichi Ohga
Ichiro Tsuchiya
Hiroo Kanamori
Hiroshi Yokota
Michihisa Kyoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Publication of DE69006940D1 publication Critical patent/DE69006940D1/de
Application granted granted Critical
Publication of DE69006940T2 publication Critical patent/DE69006940T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
    • C03B37/0146—Furnaces therefor, e.g. muffle tubes, furnace linings
    • 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
    • C03B2201/07—Impurity concentration specified
    • 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
    • C03B2201/07—Impurity concentration specified
    • C03B2201/075—Hydroxyl ion (OH)
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S65/00—Glass manufacturing
    • Y10S65/15—Nonoxygen containing chalogenides
    • Y10S65/16—Optical filament or fiber treatment with fluorine or incorporating fluorine in final product
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S65/00—Glass manufacturing
    • Y10S65/90—Drying, dehydration, minimizing oh groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Thermal Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Glass Compositions (AREA)
DE69006940T 1989-06-29 1990-06-29 Verfahren zur Wärmebehandlung von Glasfaservorformen. Expired - Fee Related DE69006940T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16769589 1989-06-29

Publications (2)

Publication Number Publication Date
DE69006940D1 true DE69006940D1 (de) 1994-04-07
DE69006940T2 DE69006940T2 (de) 1994-07-14

Family

ID=15854514

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69028414T Expired - Fee Related DE69028414T2 (de) 1989-06-29 1990-06-29 Verfahren zur thermischen Behandlung einer Glasfaservorform
DE69006940T Expired - Fee Related DE69006940T2 (de) 1989-06-29 1990-06-29 Verfahren zur Wärmebehandlung von Glasfaservorformen.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69028414T Expired - Fee Related DE69028414T2 (de) 1989-06-29 1990-06-29 Verfahren zur thermischen Behandlung einer Glasfaservorform

Country Status (10)

Country Link
US (2) US5106401A (de)
EP (2) EP0405580B1 (de)
JP (2) JPH03131544A (de)
CN (1) CN1029952C (de)
AU (2) AU632336B2 (de)
CA (1) CA2019919A1 (de)
DE (2) DE69028414T2 (de)
DK (2) DK0529694T3 (de)
ES (2) ES2094265T3 (de)
NO (1) NO178022C (de)

Families Citing this family (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU626362B2 (en) * 1988-12-29 1992-07-30 Sumitomo Electric Industries, Ltd. Furnace for producing high purity quartz glass preform
US5259856A (en) * 1989-09-06 1993-11-09 Sumitomo Electric Industrial, Ltd. Method of producing glass preform in furnace for heating glass
CA2025880A1 (en) * 1989-09-25 1991-03-26 Ichiro Tsuchiya Furnace for production of optical fiber preform
DE4133173A1 (de) * 1991-10-07 1993-04-22 Rheydt Kabelwerk Ag Verfahren zum herstellen einer vorform fuer optische fasern
JP3175247B2 (ja) * 1991-12-16 2001-06-11 住友電気工業株式会社 光ファイバ用多孔質母材の加熱透明化方法
JP3060782B2 (ja) * 1993-06-08 2000-07-10 住友電気工業株式会社 高純度透明ガラスの製造方法
US5653779A (en) * 1994-06-30 1997-08-05 Heraeus Quarzglas Gmbh Method for manufacturing quartz glass components and molding frame therefor
JP3845906B2 (ja) * 1996-08-09 2006-11-15 住友電気工業株式会社 合成シリカガラスの製造方法
DK0867412T3 (da) * 1997-03-27 2001-06-18 Cit Alcatel Termisk isolation til en ovn til trækning af optiske fibre
CN1276772A (zh) * 1997-10-31 2000-12-13 康宁股份有限公司 拉制波导纤维的设备和方法
US6543257B1 (en) * 1999-05-28 2003-04-08 The Furukawa Electric Co., Ltd. Dehydration and sintering apparatus for porous optical fiber preform
KR100346112B1 (ko) * 1999-12-22 2002-08-01 삼성전자 주식회사 솔-젤 공법을 채용한 광섬유 모재 제조공정의 소결공정에서 오버 자켓팅 튜브 소결장치 및 그 방법
DE10020033C2 (de) 2000-04-22 2003-04-03 Heraeus Quarzglas Vorrichtung zum Sintern eines Formkörpers
JP4379554B2 (ja) * 2000-09-01 2009-12-09 住友電気工業株式会社 光ファイバ母材の脱水焼結方法
JP2002154838A (ja) * 2000-11-16 2002-05-28 Shin Etsu Chem Co Ltd 光ファイバ用ガラス母材の製造方法
WO2002049977A2 (en) * 2000-12-20 2002-06-27 Corning Incorporated Method of doping an optical fiber preform with fluorine
KR20030082606A (ko) * 2001-02-24 2003-10-22 코닝 인코포레이티드 실리콘 옥시플루오라이드 유리의 산소 도핑
JP4043728B2 (ja) * 2001-04-04 2008-02-06 古河電気工業株式会社 光ファイバ線引炉
US6606883B2 (en) * 2001-04-27 2003-08-19 Corning Incorporated Method for producing fused silica and doped fused silica glass
US20030000255A1 (en) * 2001-06-28 2003-01-02 The Furukawa Electric Co., Ltd. Method of producing optical fiber preform and sintering apparatus
US8037717B2 (en) * 2001-10-26 2011-10-18 Corning Incorporated Methods and apparatus for pulsed doping or drying a soot preform
JP2004002106A (ja) * 2002-05-31 2004-01-08 Shin Etsu Chem Co Ltd 低損失光ファイバ母材とその製造方法
JP3970692B2 (ja) * 2002-05-31 2007-09-05 信越化学工業株式会社 プリフォーム製造方法
US20040057692A1 (en) * 2002-08-28 2004-03-25 Ball Laura J. Low loss optical fiber and method for making same
US6935050B2 (en) * 2002-12-04 2005-08-30 Corning Incorporated Method and apparatus reducing metal impurities in optical fiber soot preforms
JP2004218956A (ja) * 2003-01-16 2004-08-05 Ngk Insulators Ltd 基板の熱処理方法及び熱処理炉
JP2007504080A (ja) 2003-08-29 2007-03-01 コーニング インコーポレイテッド アルカリ金属酸化物を含有する光ファイバおよびその製造方法と装置
US20050092231A1 (en) * 2003-10-29 2005-05-05 Hawtof Daniel W. Method and apparatus for making crystals without a pre-melt step
US7866189B2 (en) * 2003-12-08 2011-01-11 Fujikura Ltd. Dehydration-sintering furnace, a manufacturing method of an optical fiber preform utilizing the furnace and an optical fiber preform manufactured by the method
CN1317212C (zh) * 2004-04-29 2007-05-23 斯德莱特光学技术有限公司 一种在1380nm波长区域内低衰减光纤及其制备方法
US20050257571A1 (en) * 2004-05-18 2005-11-24 The Furukawa Electric Co, Ltd. Method and apparatus for manufacturing a glass preform
US20060130530A1 (en) * 2004-12-21 2006-06-22 Anderson James G Method of doping silica glass with an alkali metal, and optical fiber precursor formed therefrom
CN101583891A (zh) * 2005-11-23 2009-11-18 康宁股份有限公司 低衰减非零色散位移光纤
FR2903501B1 (fr) * 2006-07-04 2008-08-22 Draka Comteq France Sa Fibre optique dopee au fluor
US7848606B1 (en) 2008-03-13 2010-12-07 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Eliminating crystals in non-oxide optical fiber preforms and optical fibers
US20100122558A1 (en) * 2008-11-19 2010-05-20 John Michael Jewell Apparatus and Method of Sintering an Optical Fiber Preform
WO2010103858A1 (ja) * 2009-03-12 2010-09-16 株式会社フジクラ 光ファイバ母材の製造方法
JP5503339B2 (ja) * 2009-03-16 2014-05-28 古河電気工業株式会社 多孔質ガラス母材の脱水焼結用加熱炉
JP2012188314A (ja) * 2011-03-10 2012-10-04 Shin-Etsu Chemical Co Ltd フッ素含有光ファイバ母材の製造方法及びフッ素含有光ファイバ母材
US20130248510A1 (en) * 2012-03-26 2013-09-26 Binggang Weng Electric heater capable of automatic heating
JP6025604B2 (ja) * 2013-02-21 2016-11-16 株式会社フジクラ ガラス母材の製造装置
CN104529148B (zh) * 2014-12-29 2017-04-12 长飞光纤光缆股份有限公司 一种光纤粉末疏松棒体的脱水装置及方法
CN104761138A (zh) * 2015-03-16 2015-07-08 江苏通鼎光棒有限公司 一种用于vad和ovd疏松体烧结的装置和方法
CN106116121A (zh) * 2016-08-31 2016-11-16 中国建筑材料科学研究总院 石英玻璃的制备方法及石英玻璃
JP6864641B2 (ja) * 2018-03-20 2021-04-28 信越化学工業株式会社 光ファイバ用多孔質ガラス母材の焼結方法
IT201800009920A1 (it) 2018-10-30 2020-04-30 Prysmian Spa Metodo per fabbricare una preforma di vetro per fibre ottiche

Family Cites Families (21)

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US3933454A (en) * 1974-04-22 1976-01-20 Corning Glass Works Method of making optical waveguides
US4125388A (en) * 1976-12-20 1978-11-14 Corning Glass Works Method of making optical waveguides
US4126436A (en) * 1977-12-05 1978-11-21 Corning Glass Works Apparatus for minimizing drawn filament diameter variation
US4298365A (en) * 1980-07-03 1981-11-03 Corning Glass Works Method of making a soot preform compositional profile
JPS5858299A (ja) * 1981-09-30 1983-04-06 Daido Steel Co Ltd 金属電極
US4450333A (en) * 1982-05-28 1984-05-22 At&T Technologies, Inc. Zirconia induction furnace
JPS59184734A (ja) * 1983-04-06 1984-10-20 Furukawa Electric Co Ltd:The 光学系多孔質ガラスの透明ガラス化法
US4629485A (en) * 1983-09-26 1986-12-16 Corning Glass Works Method of making fluorine doped optical preform and fiber and resultant articles
JPS60145923A (ja) * 1984-01-05 1985-08-01 Sumitomo Electric Ind Ltd 光フアイバ用母材の製造装置
JPS60239337A (ja) * 1984-05-15 1985-11-28 Sumitomo Electric Ind Ltd 光フアイバ−用ガラス母材の製造法
JPS6126522A (ja) * 1984-07-12 1986-02-05 Seiko Epson Corp 石英ガラスの製造方法
CA1271316A (en) * 1984-12-21 1990-07-10 Koichi Abe Optical waveguide manufacture
JPS61201634A (ja) * 1985-03-01 1986-09-06 Sumitomo Electric Ind Ltd 光フアイバ用母材の製造方法
JPS61215226A (ja) * 1985-03-22 1986-09-25 Furukawa Electric Co Ltd:The 光学系ガラスス−ト用透明ガラス化炉
JPS62275035A (ja) * 1985-05-07 1987-11-30 Sumitomo Electric Ind Ltd 光フアイバ用母材の製造方法
US4741748A (en) * 1986-01-30 1988-05-03 Corning Glass Works Heating oven for preparing optical waveguide fibers
DE3855370T2 (de) * 1987-02-16 1997-01-02 Sumitomo Electric Industries Ofen zum Erhitzen einer Glasvorform für optische Faser und Verfahren zum Herstellen einer Glasvorform
AU593724B2 (en) * 1987-02-16 1990-02-15 Sumitomo Electric Industries, Ltd. Furnace for heating glass preform for optical fiber and method for producing glass preform
DE3711281C1 (de) * 1987-04-03 1988-06-16 Heraeus Schott Quarzschmelze Verfahren zum Verglasen eines poroesen,aus Glasruss bestehenden Koerpers und Ofen zu dessen Durchfuehrung
JPH01183430A (ja) * 1988-01-14 1989-07-21 Sumitomo Electric Ind Ltd 多孔質光ファイバ母材の脱水焼結炉
JPH0269328A (ja) * 1988-09-06 1990-03-08 Sumitomo Electric Ind Ltd 光ファイバ用母材の製造方法

Also Published As

Publication number Publication date
NO178022C (no) 1996-01-10
US5306322A (en) 1994-04-26
AU645692B2 (en) 1994-01-20
CA2019919A1 (en) 1990-12-29
CN1048372A (zh) 1991-01-09
US5106401A (en) 1992-04-21
JPH03131544A (ja) 1991-06-05
NO178022B (no) 1995-10-02
ES2052107T3 (es) 1994-07-01
DK0405580T3 (da) 1994-03-28
AU1825192A (en) 1992-08-06
DE69028414D1 (de) 1996-10-10
DK0529694T3 (da) 1996-12-02
NO902897D0 (no) 1990-06-28
EP0529694A2 (de) 1993-03-03
AU5774790A (en) 1991-01-03
EP0405580A2 (de) 1991-01-02
EP0529694B1 (de) 1996-09-04
EP0405580B1 (de) 1994-03-02
NO902897L (no) 1991-01-02
EP0405580A3 (en) 1991-02-06
CN1029952C (zh) 1995-10-11
AU632336B2 (en) 1992-12-24
DE69028414T2 (de) 1997-02-06
ES2094265T3 (es) 1997-01-16
JPH04119939A (ja) 1992-04-21
DE69006940T2 (de) 1994-07-14
EP0529694A3 (en) 1993-06-02

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8339 Ceased/non-payment of the annual fee