JPS53144758A - Production of glass fibers for optical transmission - Google Patents

Production of glass fibers for optical transmission

Info

Publication number
JPS53144758A
JPS53144758A JP6024577A JP6024577A JPS53144758A JP S53144758 A JPS53144758 A JP S53144758A JP 6024577 A JP6024577 A JP 6024577A JP 6024577 A JP6024577 A JP 6024577A JP S53144758 A JPS53144758 A JP S53144758A
Authority
JP
Japan
Prior art keywords
production
optical transmission
glass fibers
dopant
transparent
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
JP6024577A
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 JP6024577A priority Critical patent/JPS53144758A/en
Publication of JPS53144758A publication Critical patent/JPS53144758A/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
    • C03B37/02754—Solid fibres drawn from hollow preforms
    • 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
    • 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
    • C03B37/01225—Means for changing or stabilising the shape, e.g. diameter, of tubes or rods in general, e.g. collapsing
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/12—Drawing solid optical fibre directly from a hollow preform
    • C03B2205/14—Drawing solid optical fibre directly from a hollow preform comprising collapse of an outer tube onto an inner central solid preform rod
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/12—Drawing solid optical fibre directly from a hollow preform
    • C03B2205/16—Drawing solid optical fibre directly from a hollow preform the drawn fibre consisting of circularly symmetric core and clad

Abstract

PURPOSE:To make possible the production of a glass fiber for optical transmission of superior characteristics by providing one more layer of transparent glass body of zero dopant content on the outside of a transparent body having a specified concentration distribution of dopant.
JP6024577A 1977-05-23 1977-05-23 Production of glass fibers for optical transmission Pending JPS53144758A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6024577A JPS53144758A (en) 1977-05-23 1977-05-23 Production of glass fibers for optical transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6024577A JPS53144758A (en) 1977-05-23 1977-05-23 Production of glass fibers for optical transmission

Publications (1)

Publication Number Publication Date
JPS53144758A true JPS53144758A (en) 1978-12-16

Family

ID=13136587

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6024577A Pending JPS53144758A (en) 1977-05-23 1977-05-23 Production of glass fibers for optical transmission

Country Status (1)

Country Link
JP (1) JPS53144758A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5785729A (en) * 1992-11-19 1998-07-28 Heraeus Quarzglas Gmbh Method for manufacturing large-sized quartz glass tube
WO1999009437A1 (en) * 1997-08-19 1999-02-25 Pirelli Cavi E Sistemi S.P.A. Method of and apparatus for manufacturing an optical fiber preform

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5785729A (en) * 1992-11-19 1998-07-28 Heraeus Quarzglas Gmbh Method for manufacturing large-sized quartz glass tube
WO1999009437A1 (en) * 1997-08-19 1999-02-25 Pirelli Cavi E Sistemi S.P.A. Method of and apparatus for manufacturing an optical fiber preform
US6584808B1 (en) * 1997-08-19 2003-07-01 Pirelli Cavi E Sistemi S.P.A. Method of manufacturing an optical fiber preform by collapsing a tube onto a rod

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