JPS56167109A - Manufacture of base material for optical transmission - Google Patents

Manufacture of base material for optical transmission

Info

Publication number
JPS56167109A
JPS56167109A JP7112680A JP7112680A JPS56167109A JP S56167109 A JPS56167109 A JP S56167109A JP 7112680 A JP7112680 A JP 7112680A JP 7112680 A JP7112680 A JP 7112680A JP S56167109 A JPS56167109 A JP S56167109A
Authority
JP
Japan
Prior art keywords
rod
element materials
base material
shaped photoconductive
tubulous
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
JP7112680A
Other languages
Japanese (ja)
Other versions
JPS6243932B2 (en
Inventor
Kazuaki Yoshida
Takashi Namikawa
Seiji Shibuya
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
Original Assignee
Furukawa Electric Co 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 Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Priority to JP7112680A priority Critical patent/JPS56167109A/en
Publication of JPS56167109A publication Critical patent/JPS56167109A/en
Publication of JPS6243932B2 publication Critical patent/JPS6243932B2/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
    • C03B37/10—Non-chemical treatment
    • C03B37/14—Re-forming fibres or filaments, i.e. changing their shape
    • C03B37/15—Re-forming fibres or filaments, i.e. changing their shape with heat application, e.g. for making optical fibres

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)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

PURPOSE:To form a polygonal optical transmitting base material with a high degree of integration by coverting rod-shaped photoconductive element materials, bundled in the closest package state, with a tubulous element material with a low melting point, and then by performing a heat treatment. CONSTITUTION:For example, six rod-shaped photoconductive element materials 1 (where number 2 is a core layer and 3 is a cladding layer) are provided around one material to form the assembly of element materials 1, and into a tubulous element material 7 made with glass having a lower melting point than glass of said cladding layer 3, said assembly of the element materials is inserted. then, while the material 4 is evacuated by a vacuum device 7 connected to one terminal of the material 4, the material 4 is rotated as shown by an arrow R and heated by an oxyzen and hydrogen flame burner 5 reciprocating as shown arrows A and B; and the softened and molten material is made to enter the adjacent part space (i.e. recess part 6) of each rod-shaped photoconductive material 1 and then cooled to form an optical transmitting base material 8 whose cross section is nearly hexagonal.
JP7112680A 1980-05-28 1980-05-28 Manufacture of base material for optical transmission Granted JPS56167109A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7112680A JPS56167109A (en) 1980-05-28 1980-05-28 Manufacture of base material for optical transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7112680A JPS56167109A (en) 1980-05-28 1980-05-28 Manufacture of base material for optical transmission

Publications (2)

Publication Number Publication Date
JPS56167109A true JPS56167109A (en) 1981-12-22
JPS6243932B2 JPS6243932B2 (en) 1987-09-17

Family

ID=13451557

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7112680A Granted JPS56167109A (en) 1980-05-28 1980-05-28 Manufacture of base material for optical transmission

Country Status (1)

Country Link
JP (1) JPS56167109A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012069162A1 (en) * 2010-11-26 2012-05-31 Schott Ag Fiber-optic image conductor comprising multifaceted rods
JP2013177269A (en) * 2012-02-28 2013-09-09 Nippon Telegr & Teleph Corp <Ntt> Method for producing optical fiber preform
JP2014152045A (en) * 2013-02-05 2014-08-25 Fujikura Ltd Method for manufacturing base material for multi-core fiber and multi-core fiber
JP2020125227A (en) * 2019-02-04 2020-08-20 株式会社フジクラ Method for manufacturing rod assembly for forming multi-core optical fiber, method for manufacturing multi-core optical fiber preform using the same and method for manufacturing multi-core optical fiber

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012069162A1 (en) * 2010-11-26 2012-05-31 Schott Ag Fiber-optic image conductor comprising multifaceted rods
JP2013177269A (en) * 2012-02-28 2013-09-09 Nippon Telegr & Teleph Corp <Ntt> Method for producing optical fiber preform
JP2014152045A (en) * 2013-02-05 2014-08-25 Fujikura Ltd Method for manufacturing base material for multi-core fiber and multi-core fiber
US9586852B2 (en) 2013-02-05 2017-03-07 Fujikura Ltd. Method of manufacturing preform for multicore fiber and method of manufacturing multicore fiber
JP2020125227A (en) * 2019-02-04 2020-08-20 株式会社フジクラ Method for manufacturing rod assembly for forming multi-core optical fiber, method for manufacturing multi-core optical fiber preform using the same and method for manufacturing multi-core optical fiber

Also Published As

Publication number Publication date
JPS6243932B2 (en) 1987-09-17

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