JPS6472935A - Production of single-core optical fiber for image transmission - Google Patents

Production of single-core optical fiber for image transmission

Info

Publication number
JPS6472935A
JPS6472935A JP22875087A JP22875087A JPS6472935A JP S6472935 A JPS6472935 A JP S6472935A JP 22875087 A JP22875087 A JP 22875087A JP 22875087 A JP22875087 A JP 22875087A JP S6472935 A JPS6472935 A JP S6472935A
Authority
JP
Japan
Prior art keywords
semi
sintered body
optical fiber
base material
core base
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.)
Pending
Application number
JP22875087A
Other languages
Japanese (ja)
Inventor
Hajime Marubayashi
Haruo Ogiwara
Shinichi Takada
Toshikazu Omae
Hiroyuki Tanaka
Takeshi Shintani
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.)
Mitsubishi Cable Industries Ltd
Original Assignee
Mitsubishi Cable 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 Mitsubishi Cable Industries Ltd filed Critical Mitsubishi Cable Industries Ltd
Priority to JP22875087A priority Critical patent/JPS6472935A/en
Publication of JPS6472935A publication Critical patent/JPS6472935A/en
Pending 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)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

PURPOSE:To obtain the title fiber capable of blocking the transmission of an oblique light beam and transmitting only a meridian light beam by drawing an optical fiber preform obtained by sheathing a specified core base material with a quartz tube. CONSTITUTION:(A) The columnar soot to be used as the core base material for a graded index-type optical fiber is heated in gaseous He, and contracted to obtain a semi-sintered body. A grooved notch opened to the periphery of the semi-sintered body, having its depth in the radial direction of the semi- sintered body, and extending over the whole or a part of the longitudinal axis of the semi-sintered body is formed on the semi-sintered body. (B) A light absorbing sheet consisting of another semi-sintered body of soot previously doped with a light absorbing substance is inserted into the notch, and the material is heated in gaseous He and sintered to obtain the core base material. The core base material is sheathed with (C) a quartz tube to obtain an optical fiber preform, and the preform is drawn.
JP22875087A 1987-09-11 1987-09-11 Production of single-core optical fiber for image transmission Pending JPS6472935A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22875087A JPS6472935A (en) 1987-09-11 1987-09-11 Production of single-core optical fiber for image transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22875087A JPS6472935A (en) 1987-09-11 1987-09-11 Production of single-core optical fiber for image transmission

Publications (1)

Publication Number Publication Date
JPS6472935A true JPS6472935A (en) 1989-03-17

Family

ID=16881238

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22875087A Pending JPS6472935A (en) 1987-09-11 1987-09-11 Production of single-core optical fiber for image transmission

Country Status (1)

Country Link
JP (1) JPS6472935A (en)

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