JPS5692134A - Production of base material for optical fiber - Google Patents

Production of base material for optical fiber

Info

Publication number
JPS5692134A
JPS5692134A JP16758179A JP16758179A JPS5692134A JP S5692134 A JPS5692134 A JP S5692134A JP 16758179 A JP16758179 A JP 16758179A JP 16758179 A JP16758179 A JP 16758179A JP S5692134 A JPS5692134 A JP S5692134A
Authority
JP
Japan
Prior art keywords
dopant
vessel
sintered body
thence
raw material
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.)
Pending
Application number
JP16758179A
Other languages
Japanese (ja)
Inventor
Noriyoshi Shibata
Masao Kawachi
Shoichi Sudo
Takao Edahiro
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
Original Assignee
Nippon Telegraph and Telephone Corp
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 filed Critical Nippon Telegraph and Telephone Corp
Priority to JP16758179A priority Critical patent/JPS5692134A/en
Publication of JPS5692134A publication Critical patent/JPS5692134A/en
Pending 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]
    • C03B37/01413—Reactant delivery systems
    • C03B37/01433—Reactant delivery systems for delivering and depositing additional reactants as liquids or solutions, e.g. for solution doping of the porous glass preform
    • 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
    • C03B2201/30—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
    • 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
    • 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
    • C03B2201/50—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with alkali metals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

PURPOSE:To expand the rate of dopants that are applicable to optical fibers and obtain a base material of superior characteristics by impregnating a dopant in a barlike porous glass sintered body and vitrifying the same then heating the same to form transparent glass. CONSTITUTION:A barlike porous glass sintered body 1 is fixed to an elevating device 11, and the entire part is inserted into a vessel 9, thence a shutter 10 is closed. Next, a dopant raw material soln. is supplied into a glass forming raw material vessel 9 for dopant to allow said soln. to percolate uniformly to the inside of the porous glass sintered body. This sintered body is pulled up from the vessel 9, and is held in a tubular heater 12, thence te shutter 10 is closed and a gaseous oxygen contg. saturated water vapor is supplied to a vessel 15, whereby the hydrolysis reaction of the raw material for dopant is allowed to take place. Thence, while a dehydrating agent of a gaseous phase state is being supplied together with He into the vessel 15, the heater temp. is raised up to about 500 deg.C. As the furnace temp. rises, the reaction is accelerated, and this yields a transparent glass base material without containing any OH group. As said dopant, an alkoxy compound, a halogenide, or salt is used.
JP16758179A 1979-12-25 1979-12-25 Production of base material for optical fiber Pending JPS5692134A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16758179A JPS5692134A (en) 1979-12-25 1979-12-25 Production of base material for optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16758179A JPS5692134A (en) 1979-12-25 1979-12-25 Production of base material for optical fiber

Publications (1)

Publication Number Publication Date
JPS5692134A true JPS5692134A (en) 1981-07-25

Family

ID=15852396

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16758179A Pending JPS5692134A (en) 1979-12-25 1979-12-25 Production of base material for optical fiber

Country Status (1)

Country Link
JP (1) JPS5692134A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS627640A (en) * 1985-07-02 1987-01-14 Sumitomo Electric Ind Ltd Production of glass

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS627640A (en) * 1985-07-02 1987-01-14 Sumitomo Electric Ind Ltd Production of glass
JPH0551541B2 (en) * 1985-07-02 1993-08-02 Sumitomo Electric Industries

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