JPS5556023A - Production of optical fiber base material - Google Patents

Production of optical fiber base material

Info

Publication number
JPS5556023A
JPS5556023A JP12966278A JP12966278A JPS5556023A JP S5556023 A JPS5556023 A JP S5556023A JP 12966278 A JP12966278 A JP 12966278A JP 12966278 A JP12966278 A JP 12966278A JP S5556023 A JPS5556023 A JP S5556023A
Authority
JP
Japan
Prior art keywords
optical fiber
base material
fiber base
tube
glass tube
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
JP12966278A
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 JP12966278A priority Critical patent/JPS5556023A/en
Publication of JPS5556023A publication Critical patent/JPS5556023A/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
    • C03B37/0128—Manufacture of preforms for drawing fibres or filaments starting from pulverulent glass
    • C03B37/01291—Manufacture of preforms for drawing fibres or filaments starting from pulverulent glass by progressive melting, e.g. melting glass powder during delivery to and adhering the so-formed melt to a target or preform, e.g. the Plasma Oxidation Deposition [POD] process
    • C03B37/01294—Manufacture of preforms for drawing fibres or filaments starting from pulverulent glass by progressive melting, e.g. melting glass powder during delivery to and adhering the so-formed melt to a target or preform, e.g. the Plasma Oxidation Deposition [POD] process by delivering pulverulent glass to the deposition target or preform where the powder is progressively melted, e.g. accretion
    • 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]
    • 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
    • C03B37/022—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from molten glass in which the resultant product consists of different sorts of glass or is characterised by shape, e.g. hollow fibres, undulated fibres, fibres presenting a rough surface
    • C03B37/023—Fibres composed of different sorts of glass, e.g. glass optical fibres, made by the double crucible technique

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 a low-loss optical fiber base material at a low cost by feeding silica powder and a reaction gas into a glass tube with the bottom sealed followed by heating. CONSTITUTION:Silica powder is fed into glass tube 1 with the bottom sealed from inner nozzle 2 at a rate of about 1g/min. About 100mg/min of POCl4 or GeCl4 are mixed into about 500cc/min of oxygen gas, and the resulting reaction gas is fed from outer nozzle 3. Tube 1 is being slowly moved downward by glass tube moving motor 6. The powder and the gas are heated to about 1500 deg.C in heating furnace 4 and converted into glass, thus depositing optical fiber base material 5 at the bottom of tube 1.
JP12966278A 1978-10-20 1978-10-20 Production of optical fiber base material Pending JPS5556023A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12966278A JPS5556023A (en) 1978-10-20 1978-10-20 Production of optical fiber base material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12966278A JPS5556023A (en) 1978-10-20 1978-10-20 Production of optical fiber base material

Publications (1)

Publication Number Publication Date
JPS5556023A true JPS5556023A (en) 1980-04-24

Family

ID=15015039

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12966278A Pending JPS5556023A (en) 1978-10-20 1978-10-20 Production of optical fiber base material

Country Status (1)

Country Link
JP (1) JPS5556023A (en)

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