JPS5645842A - Production of focusing type optical fiber base material - Google Patents

Production of focusing type optical fiber base material

Info

Publication number
JPS5645842A
JPS5645842A JP12068379A JP12068379A JPS5645842A JP S5645842 A JPS5645842 A JP S5645842A JP 12068379 A JP12068379 A JP 12068379A JP 12068379 A JP12068379 A JP 12068379A JP S5645842 A JPS5645842 A JP S5645842A
Authority
JP
Japan
Prior art keywords
flame
protecting pipe
focusing type
burner
glass
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.)
Granted
Application number
JP12068379A
Other languages
Japanese (ja)
Other versions
JPS5919892B2 (en
Inventor
Katsuyuki Imoto
Masao Sumi
Koji Ishida
Yasuo Suganuma
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
Hitachi Ltd
Original Assignee
Hitachi Cable Ltd
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 Cable Ltd, Hitachi Ltd filed Critical Hitachi Cable Ltd
Priority to JP12068379A priority Critical patent/JPS5919892B2/en
Publication of JPS5645842A publication Critical patent/JPS5645842A/en
Publication of JPS5919892B2 publication Critical patent/JPS5919892B2/en
Expired 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]
    • C03B37/01413—Reactant delivery systems
    • C03B37/0142—Reactant deposition burners
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/04—Multi-nested ports
    • C03B2207/06—Concentric circular ports
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/20—Specific substances in specified ports, e.g. all gas flows specified
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/20—Specific substances in specified ports, e.g. all gas flows specified
    • C03B2207/26—Multiple ports for glass precursor
    • C03B2207/28—Multiple ports for glass precursor for different glass precursors, reactants or modifiers
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/40—Mechanical flame shields
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/60—Relationship between burner and deposit, e.g. position
    • C03B2207/62—Distance
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/70—Control measures

Abstract

PURPOSE:To improve the yield of deposition of glass soot by controlling the amount of diametral spreading of the flame of a concentrical multitube burner and controlling the amount of spreading of the dopants in the flame. CONSTITUTION:At the time of producing a focusing type otpical fiber base material by deposting glass soot on a target 2 by the use of a concentrical multitube burner 1, a protecting pipe 7 protecting the flame is provided on the outside circumference of the burner. The protecting pipe is so arranged that it can be moved in the axial direction 9 of the flame by a power transmission device 8. Unless there is the protecting pipe 7, the position of the glass deposition surface assumes an optimum focusing type distribution at l1 from the burner nozzle outlet part, but if the protecting pipe 7 is provided, the glass deposition surface forming the optimum focusing type distribution comes to the position of l1+l2, longer by l2 in the axial direction of the flame. As a result, the glass soot scattering by colliding against the target 2 decreases and the yield of deposition of the glass soot improves. In some cases, the protecting pipe is expanded of its diameter in a taper shape toward the producing direction of the flame.
JP12068379A 1979-09-21 1979-09-21 Method for manufacturing focusing optical fiber base material Expired JPS5919892B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12068379A JPS5919892B2 (en) 1979-09-21 1979-09-21 Method for manufacturing focusing optical fiber base material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12068379A JPS5919892B2 (en) 1979-09-21 1979-09-21 Method for manufacturing focusing optical fiber base material

Publications (2)

Publication Number Publication Date
JPS5645842A true JPS5645842A (en) 1981-04-25
JPS5919892B2 JPS5919892B2 (en) 1984-05-09

Family

ID=14792357

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12068379A Expired JPS5919892B2 (en) 1979-09-21 1979-09-21 Method for manufacturing focusing optical fiber base material

Country Status (1)

Country Link
JP (1) JPS5919892B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5711843A (en) * 1980-06-27 1982-01-21 Nippon Telegr & Teleph Corp <Ntt> Synthetic burner of porous glass base material for optical fiber
DE3206180A1 (en) * 1982-02-20 1983-08-25 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Process for the production of a preform from which optical fibres can be drawn
JPH0558661A (en) * 1991-08-27 1993-03-09 Fujikura Ltd Production of parent material for optical fiber
JPH0738144U (en) * 1993-12-10 1995-07-14 古河電気工業株式会社 Burner device for synthesizing glass particles
KR100640405B1 (en) 2004-12-16 2006-10-31 삼성전자주식회사 Deposition burner for optical fiber preform
JP2007099589A (en) * 2005-10-07 2007-04-19 Sumitomo Metal Ind Ltd Manufacturing method and apparatus for quartz glass ingot, and stream guide for manufacturing apparatus of quartz glass ingot

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5711843A (en) * 1980-06-27 1982-01-21 Nippon Telegr & Teleph Corp <Ntt> Synthetic burner of porous glass base material for optical fiber
JPS6253451B2 (en) * 1980-06-27 1987-11-10 Nippon Telegraph & Telephone
DE3206180A1 (en) * 1982-02-20 1983-08-25 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Process for the production of a preform from which optical fibres can be drawn
JPH0558661A (en) * 1991-08-27 1993-03-09 Fujikura Ltd Production of parent material for optical fiber
JPH0738144U (en) * 1993-12-10 1995-07-14 古河電気工業株式会社 Burner device for synthesizing glass particles
KR100640405B1 (en) 2004-12-16 2006-10-31 삼성전자주식회사 Deposition burner for optical fiber preform
JP2007099589A (en) * 2005-10-07 2007-04-19 Sumitomo Metal Ind Ltd Manufacturing method and apparatus for quartz glass ingot, and stream guide for manufacturing apparatus of quartz glass ingot

Also Published As

Publication number Publication date
JPS5919892B2 (en) 1984-05-09

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