JPS57135737A - Starting material for manufacturing of optical fiber by v.a.d. process - Google Patents

Starting material for manufacturing of optical fiber by v.a.d. process

Info

Publication number
JPS57135737A
JPS57135737A JP1896181A JP1896181A JPS57135737A JP S57135737 A JPS57135737 A JP S57135737A JP 1896181 A JP1896181 A JP 1896181A JP 1896181 A JP1896181 A JP 1896181A JP S57135737 A JPS57135737 A JP S57135737A
Authority
JP
Japan
Prior art keywords
shape
starting material
optical fiber
manufacturing
preform
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
JP1896181A
Other languages
Japanese (ja)
Other versions
JPH0233658B2 (en
Inventor
Kenichi Muta
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.)
SWCC Corp
Original Assignee
Showa Electric Wire and Cable Co
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 Showa Electric Wire and Cable Co filed Critical Showa Electric Wire and Cable Co
Priority to JP1896181A priority Critical patent/JPS57135737A/en
Publication of JPS57135737A publication Critical patent/JPS57135737A/en
Publication of JPH0233658B2 publication Critical patent/JPH0233658B2/ja
Granted 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]
    • C03B37/01486—Means for supporting, rotating or translating the preforms being formed, e.g. lathes
    • C03B37/01493—Deposition substrates, e.g. targets, mandrels, start rods or tubes

Abstract

PURPOSE:To obtain the starting material for the manufacturing of an optical fiber by V.A.D process, having increased bonding area of the glass fine particles and improved bond strength, by forming the end of the starting material in a nearly similar shape to the grown shape of the preform. CONSTITUTION:The end of a starting material 10, 12 or 14 made of quartz, etc. is formed in the shape of a sphere 11, a hemisphere 13 or flame 15. The outer diameter D of the formed part 11, 13 or a 15 is made to almost coincide with the outer diameter of the torch supplying the raw material gas. Furthermore, the end shape is designed to be nearly similar shape to the end shape of the preform growing under stationary state. Accordingly, the flow of the raw material gas supplied from the torch reaches the stationary state rapidly after the starting up.
JP1896181A 1981-02-13 1981-02-13 Starting material for manufacturing of optical fiber by v.a.d. process Granted JPS57135737A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1896181A JPS57135737A (en) 1981-02-13 1981-02-13 Starting material for manufacturing of optical fiber by v.a.d. process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1896181A JPS57135737A (en) 1981-02-13 1981-02-13 Starting material for manufacturing of optical fiber by v.a.d. process

Publications (2)

Publication Number Publication Date
JPS57135737A true JPS57135737A (en) 1982-08-21
JPH0233658B2 JPH0233658B2 (en) 1990-07-30

Family

ID=11986238

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1896181A Granted JPS57135737A (en) 1981-02-13 1981-02-13 Starting material for manufacturing of optical fiber by v.a.d. process

Country Status (1)

Country Link
JP (1) JPS57135737A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58135147A (en) * 1982-02-08 1983-08-11 Hitachi Ltd Preparation of base material for optical fiber
JPS6197140A (en) * 1984-10-18 1986-05-15 Asahi Glass Co Ltd Improved seed rod for preparing parent material for porous quartz glass

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS542755A (en) * 1977-06-08 1979-01-10 Nippon Telegr & Teleph Corp <Ntt> Production of soot form double glass rod
JPS5654241A (en) * 1979-10-12 1981-05-14 Hitachi Ltd Preparation of optical fiber matrix

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS542755A (en) * 1977-06-08 1979-01-10 Nippon Telegr & Teleph Corp <Ntt> Production of soot form double glass rod
JPS5654241A (en) * 1979-10-12 1981-05-14 Hitachi Ltd Preparation of optical fiber matrix

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58135147A (en) * 1982-02-08 1983-08-11 Hitachi Ltd Preparation of base material for optical fiber
JPH0357058B2 (en) * 1982-02-08 1991-08-30
JPS6197140A (en) * 1984-10-18 1986-05-15 Asahi Glass Co Ltd Improved seed rod for preparing parent material for porous quartz glass
JPS6324937B2 (en) * 1984-10-18 1988-05-23 Asahi Glass Co Ltd

Also Published As

Publication number Publication date
JPH0233658B2 (en) 1990-07-30

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