JPS5556027A - Production of optical fiber - Google Patents

Production of optical fiber

Info

Publication number
JPS5556027A
JPS5556027A JP12966778A JP12966778A JPS5556027A JP S5556027 A JPS5556027 A JP S5556027A JP 12966778 A JP12966778 A JP 12966778A JP 12966778 A JP12966778 A JP 12966778A JP S5556027 A JPS5556027 A JP S5556027A
Authority
JP
Japan
Prior art keywords
glass
tube
gas
optical fiber
core
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
JP12966778A
Other languages
Japanese (ja)
Inventor
Toshihide Tokunaga
Junkichi Nakagawa
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.)
Hitachi Cable Ltd
Original Assignee
Hitachi Cable 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 Hitachi Cable Ltd filed Critical Hitachi Cable Ltd
Priority to JP12966778A priority Critical patent/JPS5556027A/en
Publication of JPS5556027A publication Critical patent/JPS5556027A/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
    • C03B37/02—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
    • C03B37/02754—Solid fibres drawn from hollow preforms
    • 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]
    • C03B37/018—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] by glass deposition on a glass substrate, e.g. by inside-, modified-, plasma-, or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD], i.e. by thin layer coating on the inside or outside of a glass tube or on a glass rod
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/12—Drawing solid optical fibre directly from a hollow preform
    • C03B2205/13—Drawing solid optical fibre directly from a hollow preform from a hollow glass tube containing glass-forming material in particulate form, e.g. to form the core by melting the powder during drawing

Landscapes

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

Abstract

PURPOSE:To produce an optical fiber having a large difference in refractive index between core and clad by feeding a mixed gas of GeCl4, SiCl4 and O2 gas into a glass tube as clad; heating the mixed gas to attach core glass to the bottom of the tube; and drawing the glass together with the tube. CONSTITUTION:Mixed gas G of GeCl4 and/or POCl4 SiCl4 and O2 gas is fed from nozzle 3 into glass tube 1 made of high m.p., low refractive index glass such as quartz glass or Vycor glass and held by glass tube feeder 9. By heating gas G with heater 4 molten core glass 5 of a high refractive index is attached to the bottom of tube 1, and glass 5 is drawn together with tube 1 to obtain optical fiber 6 having core and clad.
JP12966778A 1978-10-20 1978-10-20 Production of optical fiber Pending JPS5556027A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12966778A JPS5556027A (en) 1978-10-20 1978-10-20 Production of optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12966778A JPS5556027A (en) 1978-10-20 1978-10-20 Production of optical fiber

Publications (1)

Publication Number Publication Date
JPS5556027A true JPS5556027A (en) 1980-04-24

Family

ID=15015162

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12966778A Pending JPS5556027A (en) 1978-10-20 1978-10-20 Production of optical fiber

Country Status (1)

Country Link
JP (1) JPS5556027A (en)

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