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JPS565340A - Manufacture of optical transmission glass fiber - Google Patents

Manufacture of optical transmission glass fiber

Info

Publication number
JPS565340A
JPS565340A JP8250179A JP8250179A JPS565340A JP S565340 A JPS565340 A JP S565340A JP 8250179 A JP8250179 A JP 8250179A JP 8250179 A JP8250179 A JP 8250179A JP S565340 A JPS565340 A JP S565340A
Authority
JP
Japan
Prior art keywords
glass
glass tube
evaporator
flowed
gaseous
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
JP8250179A
Other languages
Japanese (ja)
Inventor
Makoto Tsukamoto
Koji Okamura
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP8250179A priority Critical patent/JPS565340A/en
Publication of JPS565340A publication Critical patent/JPS565340A/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
    • C03B37/01853—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
    • 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
    • C03B37/01265—Manufacture of preforms for drawing fibres or filaments starting entirely or partially from molten glass, e.g. by dipping a preform in a melt
    • C03B37/01271—Manufacture of preforms for drawing fibres or filaments starting entirely or partially from molten glass, e.g. by dipping a preform in a melt by centrifuging

Landscapes

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

Abstract

PURPOSE:To obtain an optical fiber of a low transmission loss in a long wavelength region with good reproducibility by a procedure in which a glass material is deposited by a gaseous phase chemical reaction on the inner wall of a quartz reaction glass tube and then gaseous chlorine, etc., is flowed into the glass tube during a stage for solidification of the hollow glass fibers to prepare a preform. CONSTITUTION:The glass materials 13 from the SiCl4 evaporator 1, the POCl4 evaporator 3, the BBr3 evaporator 5, and the GeCl4 evaporator 10, together with Ar gas as a carrier gas, are flowed into the quartz reaction glass tube 8 containing SiO2 as the main component to deposit them on the inner wall of the glass tube 8, and then the glass tube 8 thus treated is heat-treated by the burner 9 to form a melt- filled glass which is, in turn, is spun to manufacture an optical transmission glass fiber. In this case, when said glass tube 8 is heated to form the melt-filled glass, gaseous Cl2 or its compound is flowed into said glass tube 8 and OH groups present in the deposits are removed. Thus, a glass fiber of excellent low transmission loss a compared with the conventional products can be obtained.
JP8250179A 1979-06-27 1979-06-27 Manufacture of optical transmission glass fiber Pending JPS565340A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8250179A JPS565340A (en) 1979-06-27 1979-06-27 Manufacture of optical transmission glass fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8250179A JPS565340A (en) 1979-06-27 1979-06-27 Manufacture of optical transmission glass fiber

Publications (1)

Publication Number Publication Date
JPS565340A true JPS565340A (en) 1981-01-20

Family

ID=13776239

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8250179A Pending JPS565340A (en) 1979-06-27 1979-06-27 Manufacture of optical transmission glass fiber

Country Status (1)

Country Link
JP (1) JPS565340A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4668263A (en) * 1984-11-13 1987-05-26 Sumitomo Electric Industries, Ltd. Method for producing glass preform for optical fiber
US8263894B2 (en) 2009-03-11 2012-09-11 Ls Industrial Systems Co., Ltd. Electrode for vacuum interrupter
JP2016147765A (en) * 2015-02-10 2016-08-18 住友電気工業株式会社 Optical fiber preform manufacturing method
US10493842B2 (en) 2016-02-22 2019-12-03 Sumitomo Riko Company Limited Capless oil feeder and manufacturing method therefor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5313618A (en) * 1976-07-26 1978-02-07 Nippon Telegraph & Telephone Process for preparing dehydrated glass
JPS553365A (en) * 1978-06-23 1980-01-11 Nippon Telegr & Teleph Corp <Ntt> Production of base material for optical fiber

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5313618A (en) * 1976-07-26 1978-02-07 Nippon Telegraph & Telephone Process for preparing dehydrated glass
JPS553365A (en) * 1978-06-23 1980-01-11 Nippon Telegr & Teleph Corp <Ntt> Production of base material for optical fiber

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4668263A (en) * 1984-11-13 1987-05-26 Sumitomo Electric Industries, Ltd. Method for producing glass preform for optical fiber
US8263894B2 (en) 2009-03-11 2012-09-11 Ls Industrial Systems Co., Ltd. Electrode for vacuum interrupter
JP2016147765A (en) * 2015-02-10 2016-08-18 住友電気工業株式会社 Optical fiber preform manufacturing method
US10493842B2 (en) 2016-02-22 2019-12-03 Sumitomo Riko Company Limited Capless oil feeder and manufacturing method therefor

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