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JPS57140329A - Manufacture of base material for optical fiber - Google Patents

Manufacture of base material for optical fiber

Info

Publication number
JPS57140329A
JPS57140329A JP2531981A JP2531981A JPS57140329A JP S57140329 A JPS57140329 A JP S57140329A JP 2531981 A JP2531981 A JP 2531981A JP 2531981 A JP2531981 A JP 2531981A JP S57140329 A JPS57140329 A JP S57140329A
Authority
JP
Japan
Prior art keywords
pipe
rods
base material
quartz
optical fiber
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
JP2531981A
Other languages
Japanese (ja)
Other versions
JPS593410B2 (en
Inventor
Nobuo Inagaki
Kunio Ogura
Kazuaki Yoshida
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.)
Furukawa Electric Co Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Furukawa Electric Co Ltd
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 Furukawa Electric Co Ltd, Nippon Telegraph and Telephone Corp filed Critical Furukawa Electric Co Ltd
Priority to JP2531981A priority Critical patent/JPS593410B2/en
Publication of JPS57140329A publication Critical patent/JPS57140329A/en
Publication of JPS593410B2 publication Critical patent/JPS593410B2/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
    • C03B37/01205—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
    • C03B2203/00—Fibre product details, e.g. structure, shape
    • C03B2203/32—Eccentric core or cladding

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Melting And Manufacturing (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

PURPOSE:To manufacture a base material for an optical fiber used in a 2-way synthesizing and branching filter, etc. by arranging a desired number of preform rods i na quartz pipe and packing the gap with quartz glass filaments. CONSTITUTION:Both ends of preform rods 1a, 1b are melt-bonded to supports 2 made of quartz, and a quartz pipe 3 is set around the rods 1a, 1b so that the rods are positioned at prescribed places of the radius of the pipe 3. The gap among the rods 1a, 1b and the pipe 3 is then packed with quartz glass filaments 4 having 200-500mum diameter. After sealing one end of the pipe 3 by intense heating with an oxyhydrogen flame, the pipe 3 is collapsed by drawing from the sealed end in a vacuum to obtain a base material for an optical fiber while inhititing the formation of bubbles. Only cores or cores coated with clads are used as the preform rods of the resulting base material, and the number, diameter, diameter and positions can be selected arbitrarily.
JP2531981A 1981-02-23 1981-02-23 Manufacturing method of optical fiber base material Expired JPS593410B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2531981A JPS593410B2 (en) 1981-02-23 1981-02-23 Manufacturing method of optical fiber base material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2531981A JPS593410B2 (en) 1981-02-23 1981-02-23 Manufacturing method of optical fiber base material

Publications (2)

Publication Number Publication Date
JPS57140329A true JPS57140329A (en) 1982-08-30
JPS593410B2 JPS593410B2 (en) 1984-01-24

Family

ID=12162661

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2531981A Expired JPS593410B2 (en) 1981-02-23 1981-02-23 Manufacturing method of optical fiber base material

Country Status (1)

Country Link
JP (1) JPS593410B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019218250A (en) * 2018-06-21 2019-12-26 古河電気工業株式会社 Method for manufacturing optical fiber and method for manufacturing optical fiber preform

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61140002A (en) * 1984-12-12 1986-06-27 松下電器産業株式会社 Lighting apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019218250A (en) * 2018-06-21 2019-12-26 古河電気工業株式会社 Method for manufacturing optical fiber and method for manufacturing optical fiber preform

Also Published As

Publication number Publication date
JPS593410B2 (en) 1984-01-24

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