JPS643030A - Production of parent material for optical fiber - Google Patents

Production of parent material for optical fiber

Info

Publication number
JPS643030A
JPS643030A JP15557087A JP15557087A JPS643030A JP S643030 A JPS643030 A JP S643030A JP 15557087 A JP15557087 A JP 15557087A JP 15557087 A JP15557087 A JP 15557087A JP S643030 A JPS643030 A JP S643030A
Authority
JP
Japan
Prior art keywords
glass
rod
thin film
parent material
dehydrative
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
JP15557087A
Other languages
Japanese (ja)
Other versions
JPH013030A (en
JPH0784331B2 (en
Inventor
Toshio Danzuka
Hiroshi Yokota
Masumi Ito
Masahiro Takagi
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP15557087A priority Critical patent/JPH0784331B2/en
Publication of JPS643030A publication Critical patent/JPS643030A/en
Publication of JPH013030A publication Critical patent/JPH013030A/en
Publication of JPH0784331B2 publication Critical patent/JPH0784331B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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]
    • C03B37/01446—Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering

Abstract

PURPOSE:To obtain a parent material for optical glass fiber of high quality readily by effecting dehydrative treatment after formation of a specific thin film on the outer surface of the glass rod. CONSTITUTION:A thin film of glass fine articles deposit 41 is formed in the thickness less than 50% of the rod diameter on the outer surface of the rod 1 for the core material by blowing a gas flame 3 for forming glass particles such as silicon tetrachloride from the annular-structure burner 2. Then, the composite is subjected to dehydrative treatment in an electric furnace 6 at 1,100 deg.C in an atmosphere of Cl2-containing gas to provide the starting materials having hydroxyl groups removed from the surface of the rod 1 and a thin layer of glass fine particles deposition from which hydroxyl groups are thoroughly removed. Then, glass fine particle soot 4 is deposited in a desired thickness on the outer surface of the thin film 21 to produce a clear glass parent material therefrom.
JP15557087A 1987-06-24 1987-06-24 Method for manufacturing glass base material for optical fiber Expired - Fee Related JPH0784331B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15557087A JPH0784331B2 (en) 1987-06-24 1987-06-24 Method for manufacturing glass base material for optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15557087A JPH0784331B2 (en) 1987-06-24 1987-06-24 Method for manufacturing glass base material for optical fiber

Publications (3)

Publication Number Publication Date
JPS643030A true JPS643030A (en) 1989-01-06
JPH013030A JPH013030A (en) 1989-01-06
JPH0784331B2 JPH0784331B2 (en) 1995-09-13

Family

ID=15608931

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15557087A Expired - Fee Related JPH0784331B2 (en) 1987-06-24 1987-06-24 Method for manufacturing glass base material for optical fiber

Country Status (1)

Country Link
JP (1) JPH0784331B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4962051A (en) * 1988-11-18 1990-10-09 Motorola, Inc. Method of forming a defect-free semiconductor layer on insulator
JP2009167028A (en) * 2008-01-11 2009-07-30 Sumitomo Electric Ind Ltd Method of manufacturing optical fiber preform

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4962051A (en) * 1988-11-18 1990-10-09 Motorola, Inc. Method of forming a defect-free semiconductor layer on insulator
JP2009167028A (en) * 2008-01-11 2009-07-30 Sumitomo Electric Ind Ltd Method of manufacturing optical fiber preform

Also Published As

Publication number Publication date
JPH0784331B2 (en) 1995-09-13

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees