IT1184909B - Procedimento ed apparecchiatura per la riduzione dei difetti di volume e di superficie nelle fibre ottiche in silice - Google Patents

Procedimento ed apparecchiatura per la riduzione dei difetti di volume e di superficie nelle fibre ottiche in silice

Info

Publication number
IT1184909B
IT1184909B IT67265/85A IT6726585A IT1184909B IT 1184909 B IT1184909 B IT 1184909B IT 67265/85 A IT67265/85 A IT 67265/85A IT 6726585 A IT6726585 A IT 6726585A IT 1184909 B IT1184909 B IT 1184909B
Authority
IT
Italy
Prior art keywords
procedure
reduction
volume
equipment
surface defects
Prior art date
Application number
IT67265/85A
Other languages
English (en)
Italian (it)
Other versions
IT8567265A1 (it
IT8567265A0 (it
Inventor
Giacomo Roba
Original Assignee
Cselt Centro Studi Lab Telecom
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 Cselt Centro Studi Lab Telecom filed Critical Cselt Centro Studi Lab Telecom
Publication of IT8567265A0 publication Critical patent/IT8567265A0/it
Priority to IT67265/85A priority Critical patent/IT1184909B/it
Priority to US06/817,025 priority patent/US4659354A/en
Priority to CA000503656A priority patent/CA1274393A/en
Priority to JP61053817A priority patent/JPS61215232A/ja
Priority to DE8686103599T priority patent/DE3666945D1/de
Priority to EP86103599A priority patent/EP0195399B1/en
Priority to DE198686103599T priority patent/DE195399T1/de
Publication of IT8567265A1 publication Critical patent/IT8567265A1/it
Priority to US06/930,804 priority patent/US4702759A/en
Application granted granted Critical
Publication of IT1184909B publication Critical patent/IT1184909B/it

Links

Classifications

    • 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
    • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10—Coating
    • C03C25/12—General methods of coating; Devices therefor
    • C03C25/22—Deposition from the vapour phase
    • C03C25/223—Deposition from the vapour phase by chemical vapour deposition or pyrolysis
    • 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
    • C03B37/02718—Thermal treatment of the fibre during the drawing process, e.g. cooling
    • 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
    • C03B37/029—Furnaces therefor
    • 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
    • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10—Coating
    • C03C25/104—Coating to obtain optical fibres
    • C03C25/106—Single coatings
    • C03C25/1061—Inorganic coatings
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/56—Annealing or re-heating the drawn fibre prior to coating
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57—Improving the yield, e-g- reduction of reject rates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Glass Compositions (AREA)
  • Glass Melting And Manufacturing (AREA)
IT67265/85A 1985-03-18 1985-03-18 Procedimento ed apparecchiatura per la riduzione dei difetti di volume e di superficie nelle fibre ottiche in silice IT1184909B (it)

Priority Applications (8)

Application Number Priority Date Filing Date Title
IT67265/85A IT1184909B (it) 1985-03-18 1985-03-18 Procedimento ed apparecchiatura per la riduzione dei difetti di volume e di superficie nelle fibre ottiche in silice
US06/817,025 US4659354A (en) 1985-03-18 1986-01-08 Method of producing silica optical fibres with reduced volume and surface defects
CA000503656A CA1274393A (en) 1985-03-18 1986-03-10 Method of and apparatus for reducing volume and surface defects in silica optical fibres
JP61053817A JPS61215232A (ja) 1985-03-18 1986-03-13 シリカ光フアイバの体積および表面キズを減少させる方法および装置
DE8686103599T DE3666945D1 (en) 1985-03-18 1986-03-17 Method of and apparatus for reducing volume and surface defects in silica optical-fibres
EP86103599A EP0195399B1 (en) 1985-03-18 1986-03-17 Method of and apparatus for reducing volume and surface defects in silica optical-fibres
DE198686103599T DE195399T1 (de) 1985-03-18 1986-03-17 Verfahren und vorrichtung zur verminderung von volumenfehlern und oberflaechenfehlern von optischen quarzfasern.
US06/930,804 US4702759A (en) 1985-03-18 1986-11-13 Apparatus for reducing volume and surface defects in silica optical-fibres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT67265/85A IT1184909B (it) 1985-03-18 1985-03-18 Procedimento ed apparecchiatura per la riduzione dei difetti di volume e di superficie nelle fibre ottiche in silice

Publications (3)

Publication Number Publication Date
IT8567265A0 IT8567265A0 (it) 1985-03-18
IT8567265A1 IT8567265A1 (it) 1986-09-18
IT1184909B true IT1184909B (it) 1987-10-28

Family

ID=11300974

Family Applications (1)

Application Number Title Priority Date Filing Date
IT67265/85A IT1184909B (it) 1985-03-18 1985-03-18 Procedimento ed apparecchiatura per la riduzione dei difetti di volume e di superficie nelle fibre ottiche in silice

Country Status (6)

Country Link
US (2) US4659354A (cg-RX-API-DMAC7.html)
EP (1) EP0195399B1 (cg-RX-API-DMAC7.html)
JP (1) JPS61215232A (cg-RX-API-DMAC7.html)
CA (1) CA1274393A (cg-RX-API-DMAC7.html)
DE (2) DE3666945D1 (cg-RX-API-DMAC7.html)
IT (1) IT1184909B (cg-RX-API-DMAC7.html)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5024688A (en) * 1988-11-30 1991-06-18 Fujikura Ltd. Method for producing carbon-coated optical fiber
CA2004234C (en) * 1988-12-01 1994-04-19 Keiji Oohashi Optical fiber production method
US5269825A (en) * 1989-04-28 1993-12-14 Fujikura, Ltd. Method of manufacturing radiation-resistant optical fiber
US5147432A (en) * 1989-10-19 1992-09-15 At&T Bell Laboratories Methods of and apparatus for coating optical fibers
US5199993A (en) * 1989-10-19 1993-04-06 At&T Bell Laboratories Methods of and apparatus for coating optical fibers
US5242477A (en) * 1989-10-19 1993-09-07 At&T Bell Laboratories Apparatus for coating optical fibers
EP0462893B1 (en) * 1990-06-19 1995-04-12 Fujikura Ltd. Method for splicing and reinforcing carbon coated optical fibers
JP2798486B2 (ja) * 1990-08-01 1998-09-17 住友電気工業株式会社 ハーメチックコート光ファイバの製造方法及び製造装置
DE4028275A1 (de) * 1990-09-06 1992-03-12 Kabelmetal Electro Gmbh Verfahren zur herstellung von glasfaser-lichtwellenleitern mit erhoehter zugfestigkeit
US5059229A (en) * 1990-09-24 1991-10-22 Corning Incorporated Method for producing optical fiber in a hydrogen atmosphere to prevent attenuation
US5152817A (en) * 1991-01-15 1992-10-06 Corning Incorporated Reactor for coating optical fibers
US5346520A (en) * 1992-09-23 1994-09-13 Corning Incorporated Apparatus for applying a carbon coating to optical fibers
US5755850A (en) * 1992-09-24 1998-05-26 Iowa State University Research Foundation Method of making a surgical laser fiber from a monolithic silica titania glass rod
DE4339077C2 (de) * 1993-11-16 1997-03-06 Rheydt Kabelwerk Ag Verfahren zum Ziehen einer optischen Faser und Vorrichtung zu dessen Durchführung
US5868734A (en) * 1995-11-29 1999-02-09 Iowa State University Research Foundation, Inc. Methods of using silica-titania clad fibers
US6345519B1 (en) * 1996-10-25 2002-02-12 Corning Incorporated Method of reducing break sources in drawn fibers by active oxidation of contaminants in a reducing atmosphere
CN1247477C (zh) * 1999-05-27 2006-03-29 住友电气工业株式会社 光纤的制造装置和制造方法
JP2002234751A (ja) * 2001-01-31 2002-08-23 Fujikura Ltd 光ファイバ紡糸方法
JP2003114347A (ja) * 2001-07-30 2003-04-18 Furukawa Electric Co Ltd:The シングルモード光ファイバ、その製造方法および製造装置
KR100429532B1 (ko) * 2001-10-22 2004-05-03 삼성전자주식회사 광섬유제조장치의 드로타워 구조
US6789400B2 (en) * 2001-11-30 2004-09-14 The Boc Group, Inc. Cap assembly and optical fiber cooling process
US20030205066A1 (en) * 2002-03-25 2003-11-06 Ghani M. Usman Method and apparatus for efficient cooling of optical fiber during its manufacture
US20030200772A1 (en) * 2002-04-30 2003-10-30 Foster John D. Methods and apparatus for forming optical fiber
KR100545814B1 (ko) * 2002-08-31 2006-01-24 엘에스전선 주식회사 광섬유 인선 용해로 및 이를 이용한 광섬유 인선방법
US20040107736A1 (en) * 2002-12-09 2004-06-10 Alcatel Pure upflow furnace
US20070022786A1 (en) * 2003-04-28 2007-02-01 Foster John D Methods and apparatus for forming heat treated optical fiber
CN101090874B (zh) * 2004-12-27 2011-03-02 古河电气工业株式会社 玻璃条的制造方法、玻璃条以及玻璃基板
US8074474B2 (en) * 2007-11-29 2011-12-13 Corning Incorporated Fiber air turn for low attenuation fiber
JP2020528863A (ja) * 2017-07-25 2020-10-01 メイド イン スペース インコーポレイティッド 光ファイバを製造するためのシステムおよび方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125428A (en) * 1964-03-17 Uethod for coating silica rods
US4306897A (en) * 1980-04-16 1981-12-22 International Telephone And Telegraph Corporation Method of fabricating fatigue resistant optical fibers
US4400190A (en) * 1981-09-28 1983-08-23 Gte Laboratories Incorporated Graphite element for use in a furnace for drawing optical fiber
US4514205A (en) * 1981-11-05 1985-04-30 Corning Glass Works Fiber cooling apparatus
US4437870A (en) * 1981-11-05 1984-03-20 Corning Glass Works Optical waveguide fiber cooler
US4440556A (en) * 1982-06-23 1984-04-03 International Telephone And Telegraph Corporation Optical fiber drawing using plasma torch
JPS59162149A (ja) * 1983-03-02 1984-09-13 Ushio Inc 石英ガラスの表面に炭化珪素膜を設ける方法
US4613521A (en) * 1983-06-30 1986-09-23 At&T Technologies, Inc. Methods of and apparatus for coating a lightguide fiber
DE3340640A1 (de) * 1983-11-10 1985-05-23 Felten & Guilleaume Energietechnik GmbH, 5000 Köln Verfahren zur herstellung von siliciumcarbidfasern
US4578098A (en) * 1984-06-15 1986-03-25 At&T Technologies, Inc. Apparatus for controlling lightguide fiber tension during drawing

Also Published As

Publication number Publication date
US4659354A (en) 1987-04-21
CA1274393A (en) 1990-09-25
US4702759A (en) 1987-10-27
EP0195399A1 (en) 1986-09-24
DE3666945D1 (en) 1989-12-21
IT8567265A1 (it) 1986-09-18
EP0195399B1 (en) 1989-11-15
JPH0587455B2 (cg-RX-API-DMAC7.html) 1993-12-16
JPS61215232A (ja) 1986-09-25
IT8567265A0 (it) 1985-03-18
DE195399T1 (de) 1987-02-05

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