JPS5451854A - Production of preform for optical fibers and fibers - Google Patents

Production of preform for optical fibers and fibers

Info

Publication number
JPS5451854A
JPS5451854A JP11783377A JP11783377A JPS5451854A JP S5451854 A JPS5451854 A JP S5451854A JP 11783377 A JP11783377 A JP 11783377A JP 11783377 A JP11783377 A JP 11783377A JP S5451854 A JPS5451854 A JP S5451854A
Authority
JP
Japan
Prior art keywords
preform
tube
heated
electric furnace
soot
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
JP11783377A
Other languages
Japanese (ja)
Inventor
Yasuo Tsukuda
Yasuo Suganuma
Mamoru Sugie
Toshio Katsuyama
Iwao Matsuyama
Makoto Sato
Kenzo Susa
Koji Ishida
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 Ltd
Original Assignee
Hitachi 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 Ltd filed Critical Hitachi Ltd
Priority to JP11783377A priority Critical patent/JPS5451854A/en
Publication of JPS5451854A publication Critical patent/JPS5451854A/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]
    • C03B37/018—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
    • 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
    • C03B37/01807—Reactant delivery systems, e.g. reactant deposition burners
    • C03B37/01815—Reactant deposition burners or deposition heating means
    • 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
    • C03B37/01853—Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (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 eliminate disadvantages such as limitation in the material on the outermost side of the preform, easy evaporation of dopant, low accuracy of the outside diameter of the preform, low yield, etc. by depositing soot within circular tube, then sintering and vitrifying the same. CONSTITUTION:Source gases such as SiCl4, POCl3 and O2 are blown upward from the source introduction tube 39 heated by an electric furnace 38. The soot formed through CVD reaction is cooled by the air blown out from a blower 37 and soot preform 36 deposits on the inside wall of a quartz tube 32. Since the tube 32 ascends slowly, the preform 36 is heated by the electric furnace 35 and shrinks. As a result, the preform 36 separates from the tube 32. The preform 34 having been sintered ascends further and is heated by the electric furnace 33 to become a transparent glass rod 31.
JP11783377A 1977-10-03 1977-10-03 Production of preform for optical fibers and fibers Pending JPS5451854A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11783377A JPS5451854A (en) 1977-10-03 1977-10-03 Production of preform for optical fibers and fibers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11783377A JPS5451854A (en) 1977-10-03 1977-10-03 Production of preform for optical fibers and fibers

Publications (1)

Publication Number Publication Date
JPS5451854A true JPS5451854A (en) 1979-04-24

Family

ID=14721371

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11783377A Pending JPS5451854A (en) 1977-10-03 1977-10-03 Production of preform for optical fibers and fibers

Country Status (1)

Country Link
JP (1) JPS5451854A (en)

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