JPS5515965A - Production of optical fiber - Google Patents

Production of optical fiber

Info

Publication number
JPS5515965A
JPS5515965A JP8864778A JP8864778A JPS5515965A JP S5515965 A JPS5515965 A JP S5515965A JP 8864778 A JP8864778 A JP 8864778A JP 8864778 A JP8864778 A JP 8864778A JP S5515965 A JPS5515965 A JP S5515965A
Authority
JP
Japan
Prior art keywords
reactor
viscosity
glass
reactors
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.)
Pending
Application number
JP8864778A
Other languages
Japanese (ja)
Inventor
Osamu Nakamura
Yoshito Nishijima
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP8864778A priority Critical patent/JPS5515965A/en
Publication of JPS5515965A publication Critical patent/JPS5515965A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01Manufacture of glass fibres or filaments
    • C03B37/02Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/022Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from molten glass in which the resultant product consists of different sorts of glass or is characterised by shape, e.g. hollow fibres, undulated fibres, fibres presenting a rough surface
    • C03B37/023Fibres composed of different sorts of glass, e.g. glass optical fibres, made by the double crucible technique

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 stably produce high quality optical fiber using high yield glass by sticking high viscosity glass formed by plasma oxidation of raw gases to the inner walls of heat resistant reactors; lowering the viscosity by heating; and letting the resulting low viscosity glass flow out of the reactor bottoms. CONSTITUTION:Inner reactor 1 and outer reactor 2 are evacuated to, e.g. 10 Torr from lower funnel-shaped outflow holes 1a,2a. POCl3, GaCl3 and GeCl4 stored in separate vapor phase generators are supported on inert gas such as Ar, mixed with O2, and fed 4 into reactor 1. SiCl4, BBr3, POCl3 and GaCl3 are fed 5 into reactor 2 together with O2 gas by the entirely same method. Next microwave oscillation coils 3 are actuated to stick P2O5-Ga2O3-SiO2-B2O3 four component glass layers 7,8 of high viscosity to the inner walls of reactors 1,2 by plasma oxidation. The whole reactors are shifted into an electric furnace for spinning, and by controlling heating furnace 6 the viscosity is lowered. The resulting low viscosity glass is spun to produce optical fiber.
JP8864778A 1978-07-19 1978-07-19 Production of optical fiber Pending JPS5515965A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8864778A JPS5515965A (en) 1978-07-19 1978-07-19 Production of optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8864778A JPS5515965A (en) 1978-07-19 1978-07-19 Production of optical fiber

Publications (1)

Publication Number Publication Date
JPS5515965A true JPS5515965A (en) 1980-02-04

Family

ID=13948603

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8864778A Pending JPS5515965A (en) 1978-07-19 1978-07-19 Production of optical fiber

Country Status (1)

Country Link
JP (1) JPS5515965A (en)

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