JPS54151626A - Production of optical fiber - Google Patents

Production of optical fiber

Info

Publication number
JPS54151626A
JPS54151626A JP5938578A JP5938578A JPS54151626A JP S54151626 A JPS54151626 A JP S54151626A JP 5938578 A JP5938578 A JP 5938578A JP 5938578 A JP5938578 A JP 5938578A JP S54151626 A JPS54151626 A JP S54151626A
Authority
JP
Japan
Prior art keywords
preform
clean
mechanical strength
optical fiber
optical fibers
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
JP5938578A
Other languages
Japanese (ja)
Inventor
Shiro Kurosaki
Yuichi Usui
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 JP5938578A priority Critical patent/JPS54151626A/en
Publication of JPS54151626A publication Critical patent/JPS54151626A/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
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
    • C03B37/027—Fibres composed of different sorts of glass, e.g. glass 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)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

PURPOSE:Glass preform is made smooth and clean on the surface, then spun under specific conditions to produce optical fibers with reduced fluctuation in fiber diameter and high mechanical strength. CONSTITUTION:A glass preform that has prescribed distribution of refractive index in the radial direction is dipped in a solution of hydrofluoric acid or a mixture thereof with phosphoric and sulfuric acids and others to make the surface smooth and clean. Then, the one end of preform is molten by heating and spun by applying an tension, into fibers, which are immediately coated with a primary coat to give optical fibers with reduced fluctuation in fiber diameter. At this time, the temperature and heating zone and spinning tension are controlled so that the length of molten part on the one end of the preform is kept shorter than the diameter of the preform, thus increasing the mechanical strength of optical fiber.
JP5938578A 1978-05-17 1978-05-17 Production of optical fiber Pending JPS54151626A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5938578A JPS54151626A (en) 1978-05-17 1978-05-17 Production of optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5938578A JPS54151626A (en) 1978-05-17 1978-05-17 Production of optical fiber

Publications (1)

Publication Number Publication Date
JPS54151626A true JPS54151626A (en) 1979-11-29

Family

ID=13111753

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5938578A Pending JPS54151626A (en) 1978-05-17 1978-05-17 Production of optical fiber

Country Status (1)

Country Link
JP (1) JPS54151626A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS643031A (en) * 1987-03-09 1989-01-06 Hisankabutsu Glass Kenkyu Kaihatsu Kk Production of infrared ray fiber
EP1211228A1 (en) * 1999-07-05 2002-06-05 Sumitomo Electric Industries, Ltd. Optical fiber drawing method and drawing device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS643031A (en) * 1987-03-09 1989-01-06 Hisankabutsu Glass Kenkyu Kaihatsu Kk Production of infrared ray fiber
JPH0566891B2 (en) * 1987-03-09 1993-09-22 Hisankabutsu Glass Kenkyu
EP1211228A1 (en) * 1999-07-05 2002-06-05 Sumitomo Electric Industries, Ltd. Optical fiber drawing method and drawing device
EP1211228A4 (en) * 1999-07-05 2005-06-01 Sumitomo Electric Industries Optical fiber drawing method and drawing device

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