ZA921271B - Method for producing glass preform for optical fiber - Google Patents

Method for producing glass preform for optical fiber

Info

Publication number
ZA921271B
ZA921271B ZA921271A ZA921271A ZA921271B ZA 921271 B ZA921271 B ZA 921271B ZA 921271 A ZA921271 A ZA 921271A ZA 921271 A ZA921271 A ZA 921271A ZA 921271 B ZA921271 B ZA 921271B
Authority
ZA
South Africa
Prior art keywords
optical fiber
glass preform
producing glass
producing
preform
Prior art date
Application number
ZA921271A
Other languages
English (en)
Inventor
Masumi Ito
Ito Masumi
Hiroo Kanamori
Kanamori Hiroo
Toshio Danzuka
Danzuka Toshio
Hiroshi Yokota
Yokota Hiroshi
Original Assignee
Sumitomo Electric Industries
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 filed Critical Sumitomo Electric Industries
Publication of ZA921271B publication Critical patent/ZA921271B/xx

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
    • C03B37/01205—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
    • C03B37/01248—Means for changing or stabilising the shape, e.g. diameter, of tubes or rods in general, e.g. collapsing by collapsing without drawing
    • 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
    • C03B37/10—Non-chemical treatment
    • C03B37/14—Re-forming fibres or filaments, i.e. changing their shape
    • 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
    • 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
    • C03B37/01257—Heating devices therefor
    • 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
    • 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
    • C03B2201/40—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with transition metals other than rare earth metals, e.g. Zr, Nb, Ta or Zn
    • C03B2201/42—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with transition metals other than rare earth metals, e.g. Zr, Nb, Ta or Zn doped with titanium

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth 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)
ZA921271A 1991-02-25 1992-02-21 Method for producing glass preform for optical fiber ZA921271B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3029869A JPH04270132A (ja) 1991-02-25 1991-02-25 光ファイバ用ガラス母材の製造方法

Publications (1)

Publication Number Publication Date
ZA921271B true ZA921271B (en) 1993-04-28

Family

ID=12287980

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA921271A ZA921271B (en) 1991-02-25 1992-02-21 Method for producing glass preform for optical fiber

Country Status (9)

Country Link
EP (1) EP0501429B1 (ja)
JP (1) JPH04270132A (ja)
KR (1) KR950004058B1 (ja)
AU (1) AU649519B2 (ja)
DE (1) DE69212017T2 (ja)
FI (1) FI96944C (ja)
NO (1) NO308524B1 (ja)
TW (1) TW198002B (ja)
ZA (1) ZA921271B (ja)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0177088B1 (ko) * 1993-11-29 1999-05-15 김광호 단일모드 광섬유 1차 모재 오버크래딩 방법 및 장치
CA2161939A1 (en) * 1994-12-20 1996-06-21 George E. Berkey Method of making optical fiber having depressed index core region
US5917109A (en) 1994-12-20 1999-06-29 Corning Incorporated Method of making optical fiber having depressed index core region
KR0184481B1 (ko) * 1996-06-10 1999-05-15 김광호 광섬유 제조장치의 고생산성 광섬유 인출장치 및 그 인출방법
EP1001912B1 (en) * 1997-03-27 2003-06-25 Samsung Electronics Co., Ltd. Apparatus and method for overcladding optical fiber preform rod and optical fiber drawing method
AU738295B2 (en) * 1997-08-19 2001-09-13 Prysmian Cavi E Sistemi Energia S.R.L. Method of and apparatus for manufacturing an optical fiber preform
US6105396A (en) * 1998-07-14 2000-08-22 Lucent Technologies Inc. Method of making a large MCVD single mode fiber preform by varying internal pressure to control preform straightness
JP3819614B2 (ja) * 1998-10-16 2006-09-13 信越石英株式会社 光ファイバ用石英ガラス母材の製造方法
US6446468B1 (en) * 2000-08-01 2002-09-10 Fitel Usa Corp. Process for fabricating optical fiber involving overcladding during sintering
NL1025476C2 (nl) * 2004-02-12 2005-08-15 Draka Fibre Technology Bv Werkwijze ter vervaardiging van een vormdeel voor optische vezels.
WO2007059336A1 (en) * 2005-11-18 2007-05-24 Nextrom Oy Method and apparatus for manufacturing water-free optical fiber preforms
US9212082B2 (en) 2012-12-26 2015-12-15 Heraeus Quarzglas Gmbh & Co. Kg System and method for fabricating optical fiber preform and optical fiber
EP3323791B1 (en) 2016-11-22 2019-08-28 Heraeus Quartz North America LLC Upward collapse process and apparatus for making glass preforms
EP3683195A1 (en) * 2019-01-15 2020-07-22 Heraeus Quartz North America LLC Automated large outside diameter preform tipping process

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5852935B2 (ja) * 1978-11-20 1983-11-26 三菱マテリアル株式会社 光伝送用素材の製造方法
JPS5924092B2 (ja) * 1978-12-29 1984-06-07 三菱マテリアル株式会社 光フアイバ母材の製造法
GB2148875B (en) * 1983-10-24 1987-01-28 Standard Telephones Cables Ltd Optical fibre preform manufacture
JPS61117126A (ja) * 1984-11-13 1986-06-04 Sumitomo Electric Ind Ltd 光フアイバ用母材の製造方法
JPS61227938A (ja) * 1985-04-03 1986-10-11 Sumitomo Electric Ind Ltd 光フアイバ用母材の製造方法
JPS6236035A (ja) * 1985-04-18 1987-02-17 Sumitomo Electric Ind Ltd 光フアイバ母材の製造方法
US5059230A (en) * 1990-01-22 1991-10-22 At&T Bell Laboratories Fabrication of doped filament optical fibers

Also Published As

Publication number Publication date
FI96944C (fi) 1996-09-25
EP0501429B1 (en) 1996-07-10
DE69212017D1 (de) 1996-08-14
JPH04270132A (ja) 1992-09-25
FI920784A (fi) 1992-08-26
EP0501429A1 (en) 1992-09-02
KR950004058B1 (ko) 1995-04-25
FI920784A0 (fi) 1992-02-24
TW198002B (ja) 1993-01-11
AU1118992A (en) 1992-08-27
KR920016363A (ko) 1992-09-24
NO308524B1 (no) 2000-09-25
FI96944B (fi) 1996-06-14
NO920724L (no) 1992-08-26
NO920724D0 (no) 1992-02-24
AU649519B2 (en) 1994-05-26
DE69212017T2 (de) 1996-12-19

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