JPS5637242A - Manufacture of fiber base material for optical communication - Google Patents

Manufacture of fiber base material for optical communication

Info

Publication number
JPS5637242A
JPS5637242A JP11210279A JP11210279A JPS5637242A JP S5637242 A JPS5637242 A JP S5637242A JP 11210279 A JP11210279 A JP 11210279A JP 11210279 A JP11210279 A JP 11210279A JP S5637242 A JPS5637242 A JP S5637242A
Authority
JP
Japan
Prior art keywords
glass
temp
converted
base material
vitrifying
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
JP11210279A
Other languages
Japanese (ja)
Other versions
JPS6041626B2 (en
Inventor
Nobuo Inagaki
Shiro Kurosaki
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 JP11210279A priority Critical patent/JPS6041626B2/en
Publication of JPS5637242A publication Critical patent/JPS5637242A/en
Publication of JPS6041626B2 publication Critical patent/JPS6041626B2/en
Expired 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
    • C03B2201/08—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant
    • C03B2201/10—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant doped with boron

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)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

PURPOSE:To obtain the titled base material without exerting unfavorable influence on glass fine powder and transparent glass by heat vitrifying glass material subjected to combustion oxidation at a temp. near the transparently vitrifying temp. while feeding O2 gas into a pipelike starting member. CONSTITUTION:Glass fine powdered body 22 is heated ro the transparently vitrifying temp. (about 1,300 deg.C) with heater 28, and while feeding O2 gas into support pipe 23 and substrate 21 from inlet 24, pipe 23 is slowly lowered with lift 26. Body 22 is successively converted into transparent glass 29 from the lower end. At the same time, substrate 21 is converted into B2O3 by combustion vitrification, and it is partially evaporated. When the whole of body 22 is converted into transparent glass 29, starting member 21 disppears thoroughly or remains as glass. No stress is imposed on glass 29 from member 21, and the remaining glass may be removed with hydrofluoric acid.
JP11210279A 1979-08-31 1979-08-31 Manufacturing method of fiber base material for optical communication Expired JPS6041626B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11210279A JPS6041626B2 (en) 1979-08-31 1979-08-31 Manufacturing method of fiber base material for optical communication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11210279A JPS6041626B2 (en) 1979-08-31 1979-08-31 Manufacturing method of fiber base material for optical communication

Publications (2)

Publication Number Publication Date
JPS5637242A true JPS5637242A (en) 1981-04-10
JPS6041626B2 JPS6041626B2 (en) 1985-09-18

Family

ID=14578175

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11210279A Expired JPS6041626B2 (en) 1979-08-31 1979-08-31 Manufacturing method of fiber base material for optical communication

Country Status (1)

Country Link
JP (1) JPS6041626B2 (en)

Also Published As

Publication number Publication date
JPS6041626B2 (en) 1985-09-18

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