JPS57183331A - Manufacturing of transparent glass preform - Google Patents

Manufacturing of transparent glass preform

Info

Publication number
JPS57183331A
JPS57183331A JP6683581A JP6683581A JPS57183331A JP S57183331 A JPS57183331 A JP S57183331A JP 6683581 A JP6683581 A JP 6683581A JP 6683581 A JP6683581 A JP 6683581A JP S57183331 A JPS57183331 A JP S57183331A
Authority
JP
Japan
Prior art keywords
glass
dopant
transparent glass
refractive index
geo2
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.)
Granted
Application number
JP6683581A
Other languages
Japanese (ja)
Other versions
JPH0258217B2 (en
Inventor
Kazunori Senda
Tsunehisa Kyodo
Toru Kuwabara
Gotaro Tanaka
Minoru Watanabe
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.)
Nippon Telegraph and Telephone Corp
Sumitomo Electric Industries Ltd
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp, Sumitomo Electric Industries Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP6683581A priority Critical patent/JPS57183331A/en
Publication of JPS57183331A publication Critical patent/JPS57183331A/en
Publication of JPH0258217B2 publication Critical patent/JPH0258217B2/ja
Granted 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
    • 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

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)
  • Glass Melting And Manufacturing (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

PURPOSE:To manufacture a tansparent glass preform having desired refractive index distribution, by reducing and evaporating a part of dopant added to fine glass particles to be sintered to a transparent glass, thereby controlling the concentration distribution of the dopant. CONSTITUTION:SiCl4, O2 and H2 which are raw materials of glass, and GeCl4 which is a dopant to change the refractive index of the glass, are supplied through the burner 4 placed below the supporting rod 2 suspended in the vessel 1. Fine particles of SiO2 glass are produced by the hydrolytic reaction with an oxyhydrogen flame, and deposited to the supporting rod 2. The depsotion of the particles to the rod is carried out while rotating and vertically oscillating the supporting rod 2, to obtain a glass soot 5 containing GeO2 as a dopant. In the course of pulling up the soot rod and converting to transparent glass by baking with the heater 6, a reducing gas such as CO is introduced into the vessel 1 throgh the gas inlet 7, and a part of the dopant GeO2 is reduced to GeO and evaporated. The concentration of GeO2 is controlled by this procedure, and a transparent glass preform having desired refractive index distribution can be manufactured.
JP6683581A 1981-05-06 1981-05-06 Manufacturing of transparent glass preform Granted JPS57183331A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6683581A JPS57183331A (en) 1981-05-06 1981-05-06 Manufacturing of transparent glass preform

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6683581A JPS57183331A (en) 1981-05-06 1981-05-06 Manufacturing of transparent glass preform

Publications (2)

Publication Number Publication Date
JPS57183331A true JPS57183331A (en) 1982-11-11
JPH0258217B2 JPH0258217B2 (en) 1990-12-07

Family

ID=13327291

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6683581A Granted JPS57183331A (en) 1981-05-06 1981-05-06 Manufacturing of transparent glass preform

Country Status (1)

Country Link
JP (1) JPS57183331A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6051628A (en) * 1983-08-31 1985-03-23 Furukawa Electric Co Ltd:The Treatment of glass material for optical fiber
JPS61174122A (en) * 1985-01-25 1986-08-05 Sumitomo Electric Ind Ltd Production of glass having refractive index distribution
JPH01126236A (en) * 1987-11-09 1989-05-18 Shin Etsu Chem Co Ltd Production of optical fiber preform
EP0747327A1 (en) * 1995-06-07 1996-12-11 Corning Incorporated Method of thermally treating and consolidating silica preforms for reducing laser-induced optical damage in silica
WO2002026645A1 (en) * 2000-09-27 2002-04-04 Corning Incorporated Process for drying porous glass preforms
EP1351897A4 (en) * 2000-12-22 2005-06-15 Corning Inc Treating soot preforms with a reducing agent
US7089766B2 (en) * 2000-04-28 2006-08-15 Corning Inc Method of forming optical fiber preforms
JP2018016533A (en) * 2016-07-29 2018-02-01 信越化学工業株式会社 Production method of glass preform for optical fiber

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54134134A (en) * 1978-04-07 1979-10-18 Nippon Telegr & Teleph Corp <Ntt> Manufacture of light transmission glass
JPS54134128A (en) * 1978-04-04 1979-10-18 Nippon Telegr & Teleph Corp <Ntt> Manufacture of basic material for light transmitting fiber
JPS5510412A (en) * 1978-07-06 1980-01-24 Nippon Telegr & Teleph Corp <Ntt> Production of anhydrous glass base material for optical fiber
JPS57156339A (en) * 1981-03-18 1982-09-27 Nippon Telegr & Teleph Corp <Ntt> Preparation of optical fiber

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54134128A (en) * 1978-04-04 1979-10-18 Nippon Telegr & Teleph Corp <Ntt> Manufacture of basic material for light transmitting fiber
JPS54134134A (en) * 1978-04-07 1979-10-18 Nippon Telegr & Teleph Corp <Ntt> Manufacture of light transmission glass
JPS5510412A (en) * 1978-07-06 1980-01-24 Nippon Telegr & Teleph Corp <Ntt> Production of anhydrous glass base material for optical fiber
JPS57156339A (en) * 1981-03-18 1982-09-27 Nippon Telegr & Teleph Corp <Ntt> Preparation of optical fiber

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6051628A (en) * 1983-08-31 1985-03-23 Furukawa Electric Co Ltd:The Treatment of glass material for optical fiber
JPS61174122A (en) * 1985-01-25 1986-08-05 Sumitomo Electric Ind Ltd Production of glass having refractive index distribution
JPH01126236A (en) * 1987-11-09 1989-05-18 Shin Etsu Chem Co Ltd Production of optical fiber preform
EP0747327A1 (en) * 1995-06-07 1996-12-11 Corning Incorporated Method of thermally treating and consolidating silica preforms for reducing laser-induced optical damage in silica
US5735921A (en) * 1995-06-07 1998-04-07 Corning Incorporated Method of reducing laser-induced optical damage in silica
US7089766B2 (en) * 2000-04-28 2006-08-15 Corning Inc Method of forming optical fiber preforms
WO2002026645A1 (en) * 2000-09-27 2002-04-04 Corning Incorporated Process for drying porous glass preforms
WO2002026646A3 (en) * 2000-09-27 2002-10-31 Corning Inc Process for drying porous glass preforms
EP1351897A4 (en) * 2000-12-22 2005-06-15 Corning Inc Treating soot preforms with a reducing agent
JP2018016533A (en) * 2016-07-29 2018-02-01 信越化学工業株式会社 Production method of glass preform for optical fiber
US20180029921A1 (en) * 2016-07-29 2018-02-01 Shin-Etsu Chemical Co., Ltd. Method for producing glass preform for optical fiber

Also Published As

Publication number Publication date
JPH0258217B2 (en) 1990-12-07

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