JPS55109238A - Production of base material for optical fiber - Google Patents

Production of base material for optical fiber

Info

Publication number
JPS55109238A
JPS55109238A JP1353279A JP1353279A JPS55109238A JP S55109238 A JPS55109238 A JP S55109238A JP 1353279 A JP1353279 A JP 1353279A JP 1353279 A JP1353279 A JP 1353279A JP S55109238 A JPS55109238 A JP S55109238A
Authority
JP
Japan
Prior art keywords
pipe
glass pipe
mixture
hollow
clad
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
JP1353279A
Other languages
Japanese (ja)
Inventor
Tetsuo Miya
Toshito Hosaka
Yukio Terunuma
Tadashi Miyashita
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 JP1353279A priority Critical patent/JPS55109238A/en
Publication of JPS55109238A publication Critical patent/JPS55109238A/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
    • C03B37/01884—Means for supporting, rotating and translating tubes or rods being formed, e.g. lathes
    • C03B37/01892—Deposition substrates, e.g. tubes, mandrels
    • 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
    • C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
    • C03B37/01211—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2201/00—Type of glass produced
    • C03B2201/02—Pure silica glass, e.g. pure fused quartz
    • C03B2201/03—Impurity concentration specified
    • C03B2201/04—Hydroxyl ion (OH)

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 base material for an optical fiber in a short time, by inserting a hollow cylindrical glass pipe with a low OH content into the hollow of a material glass pipe. CONSTITUTION:Into a material glass pipe 1 is inserted a hollow glass pipe 2 with an OH content of as low as few ppms. By externally heating the pipe 1 to a temperature higher than the softening point, the pipe 1 is lined with the pipe 2 to form a second material glass pipe. Into the second material glass pipe is passed a mixture prepared by mixing a material gas of a main component and a material gas of oxides so as to provide a refractive index designed for a clad, and the mixture passing is heated to a temperature of 1200-1600 deg.C by an external heat source. By this heating, the mixture deposits and vitrifies, forming a clad. Next, into the clad is passed a mixture prepared by mixing a material gas of a main component and a material gas of oxides so as to provide a refractive index designed for a core, and the mixture passing is heated by an external heat source. By this heating, the mixture deposits and vitrifies, forming a core. The pipe is heated to a temperature higher than 1600 deg.C to effect collapsing of the hollow.
JP1353279A 1979-02-08 1979-02-08 Production of base material for optical fiber Pending JPS55109238A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1353279A JPS55109238A (en) 1979-02-08 1979-02-08 Production of base material for optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1353279A JPS55109238A (en) 1979-02-08 1979-02-08 Production of base material for optical fiber

Publications (1)

Publication Number Publication Date
JPS55109238A true JPS55109238A (en) 1980-08-22

Family

ID=11835762

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1353279A Pending JPS55109238A (en) 1979-02-08 1979-02-08 Production of base material for optical fiber

Country Status (1)

Country Link
JP (1) JPS55109238A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2510097A1 (en) * 1981-07-21 1983-01-28 Heraeus Schott Quarzschmelze
FR2725441A1 (en) * 1994-10-07 1996-04-12 Samsung Electronics Co Ltd OPTICAL FIBER PREFORM AND MANUFACTURING METHOD THEREOF

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5360648A (en) * 1976-11-12 1978-05-31 Furukawa Electric Co Ltd:The Preparation of optical transmission fiber
JPS5395649A (en) * 1977-02-02 1978-08-22 Hitachi Ltd Production of optical fiber

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5360648A (en) * 1976-11-12 1978-05-31 Furukawa Electric Co Ltd:The Preparation of optical transmission fiber
JPS5395649A (en) * 1977-02-02 1978-08-22 Hitachi Ltd Production of optical fiber

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2510097A1 (en) * 1981-07-21 1983-01-28 Heraeus Schott Quarzschmelze
FR2725441A1 (en) * 1994-10-07 1996-04-12 Samsung Electronics Co Ltd OPTICAL FIBER PREFORM AND MANUFACTURING METHOD THEREOF

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