JPS55144430A - Manufacture of base material for light transmission fiber - Google Patents

Manufacture of base material for light transmission fiber

Info

Publication number
JPS55144430A
JPS55144430A JP5052979A JP5052979A JPS55144430A JP S55144430 A JPS55144430 A JP S55144430A JP 5052979 A JP5052979 A JP 5052979A JP 5052979 A JP5052979 A JP 5052979A JP S55144430 A JPS55144430 A JP S55144430A
Authority
JP
Japan
Prior art keywords
fine particles
base material
light transmission
transmission fiber
coated
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
JP5052979A
Other languages
Japanese (ja)
Inventor
Motohiro Nakahara
Tsunehisa Kyodo
Toru Kuwabara
Gotaro Tanaka
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.)
Nippon Telegraph and Telephone Corp
Sumitomo Electric Industries Ltd
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp, Sumitomo Electric Industries Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP5052979A priority Critical patent/JPS55144430A/en
Publication of JPS55144430A publication Critical patent/JPS55144430A/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
    • C03B37/0128—Manufacture of preforms for drawing fibres or filaments starting from pulverulent glass
    • C03B37/01282—Manufacture of preforms for drawing fibres or filaments starting from pulverulent glass by pressing or sintering, e.g. hot-pressing

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 a base material for light transmission fiber having a uniform and foam-free composition, by the procedure in which a specific substance, e.g., Ge, P, etc., is coated on the surfaces of a fine quartz powder (of 1mum or less) by a chemical vapor deposition, etc., and then the coated fine particles are pressed and sintered. CONSTITUTION:The quartz powder (fine particles of 1mum or less) 22 is scattered into the housing portion 21 of the vacuum container 29 on the one hand, and on the other hand, O2 gas is introduced from the nozzle 28 and also the oxide or oxyhalide of P, S, etc., as a coating raw material is introduced from the nozzle 30 in order to uniformly coat said fine particles (SiO2) 22 with said oxide, etc., by a mere deposition or chemical vapor deposition. The fine particles thus treated are molded by pressing and then sintered and vitrified in the He-O2 atmosphere in a heating furnace. Thus, because the fine quartz particles are coated with a low-melting oxide, a base material for light transmission fiber with uniform composition which is low in vitrification temperature and free of foams due to the decomposition of Ge2O3 as in the case of the conventional methods can be obtained.
JP5052979A 1979-04-24 1979-04-24 Manufacture of base material for light transmission fiber Pending JPS55144430A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5052979A JPS55144430A (en) 1979-04-24 1979-04-24 Manufacture of base material for light transmission fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5052979A JPS55144430A (en) 1979-04-24 1979-04-24 Manufacture of base material for light transmission fiber

Publications (1)

Publication Number Publication Date
JPS55144430A true JPS55144430A (en) 1980-11-11

Family

ID=12861511

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5052979A Pending JPS55144430A (en) 1979-04-24 1979-04-24 Manufacture of base material for light transmission fiber

Country Status (1)

Country Link
JP (1) JPS55144430A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5756335A (en) * 1980-09-16 1982-04-03 Nippon Telegr & Teleph Corp <Ntt> Manufacture of doped silica glass
US4414012A (en) * 1980-09-11 1983-11-08 Nippon Telegraph & Telephone Public Corporation Fabrication methods of doped silica glass and optical fiber preform by using the doped silica glass

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4414012A (en) * 1980-09-11 1983-11-08 Nippon Telegraph & Telephone Public Corporation Fabrication methods of doped silica glass and optical fiber preform by using the doped silica glass
JPS5756335A (en) * 1980-09-16 1982-04-03 Nippon Telegr & Teleph Corp <Ntt> Manufacture of doped silica glass

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