FI96944C - Menetelmä valmistaa lasimuotti optista kuitua varten - Google Patents

Menetelmä valmistaa lasimuotti optista kuitua varten

Info

Publication number
FI96944C
FI96944C FI920784A FI920784A FI96944C FI 96944 C FI96944 C FI 96944C FI 920784 A FI920784 A FI 920784A FI 920784 A FI920784 A FI 920784A FI 96944 C FI96944 C FI 96944C
Authority
FI
Finland
Prior art keywords
optical fiber
fiber glass
glass mold
producing optical
producing
Prior art date
Application number
FI920784A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI920784A0 (fi
FI920784A7 (fi
FI96944B (fi
Inventor
Masumi Ito
Hiroo Kanamori
Toshio Danzuka
Hiroshi Yokota
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 FI920784A0 publication Critical patent/FI920784A0/fi
Publication of FI920784A7 publication Critical patent/FI920784A7/fi
Application granted granted Critical
Publication of FI96944B publication Critical patent/FI96944B/fi
Publication of FI96944C publication Critical patent/FI96944C/fi

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)
FI920784A 1991-02-25 1992-02-24 Menetelmä valmistaa lasimuotti optista kuitua varten FI96944C (fi)

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 (4)

Publication Number Publication Date
FI920784A0 FI920784A0 (fi) 1992-02-24
FI920784A7 FI920784A7 (fi) 1992-08-26
FI96944B FI96944B (fi) 1996-06-14
FI96944C true FI96944C (fi) 1996-09-25

Family

ID=12287980

Family Applications (1)

Application Number Title Priority Date Filing Date
FI920784A FI96944C (fi) 1991-02-25 1992-02-24 Menetelmä valmistaa lasimuotti optista kuitua varten

Country Status (9)

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

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
US5917109A (en) 1994-12-20 1999-06-29 Corning Incorporated Method of making optical fiber having depressed index core region
CA2161939A1 (en) * 1994-12-20 1996-06-21 George E. Berkey 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
RU2187474C2 (ru) * 1997-03-27 2002-08-20 Самсунг Электроникс Ко., Лтд. Устройство и способ нанесения наружной оболочки на стержень заготовки оптического волокна
DE69834048T2 (de) * 1997-08-19 2006-12-07 Prysmian Cavi E Sistemi Energia S.R.L. Verfahren und vorrichtung zum herstellen einer vorform für optische fasern
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
DK3323791T3 (da) 2016-11-22 2019-10-21 Heraeus Quartz North America Llc Fremgangsmåde til opadgående kollabering og apparat til fremstilling af glaspræformer
EP3683195B1 (en) * 2019-01-15 2024-11-27 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
EP0501429B1 (en) 1996-07-10
DE69212017D1 (de) 1996-08-14
NO308524B1 (no) 2000-09-25
EP0501429A1 (en) 1992-09-02
NO920724L (no) 1992-08-26
KR950004058B1 (ko) 1995-04-25
JPH04270132A (ja) 1992-09-25
AU1118992A (en) 1992-08-27
KR920016363A (ko) 1992-09-24
FI920784A0 (fi) 1992-02-24
AU649519B2 (en) 1994-05-26
ZA921271B (en) 1993-04-28
NO920724D0 (no) 1992-02-24
FI920784A7 (fi) 1992-08-26
DE69212017T2 (de) 1996-12-19
FI96944B (fi) 1996-06-14
TW198002B (enExample) 1993-01-11

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Legal Events

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