JPS542140A - Preform producing apparatus for optical fibers - Google Patents

Preform producing apparatus for optical fibers

Info

Publication number
JPS542140A
JPS542140A JP6630877A JP6630877A JPS542140A JP S542140 A JPS542140 A JP S542140A JP 6630877 A JP6630877 A JP 6630877A JP 6630877 A JP6630877 A JP 6630877A JP S542140 A JPS542140 A JP S542140A
Authority
JP
Japan
Prior art keywords
optical fibers
producing apparatus
preform
preform producing
quartz tube
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.)
Granted
Application number
JP6630877A
Other languages
Japanese (ja)
Other versions
JPS5516979B2 (en
Inventor
Masao Kawachi
Takashi Okada
Kazunori Senda
Akio Kawana
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.)
NTT Inc
Original Assignee
Nippon Telegraph and Telephone Corp
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 filed Critical Nippon Telegraph and Telephone Corp
Priority to JP6630877A priority Critical patent/JPS542140A/en
Publication of JPS542140A publication Critical patent/JPS542140A/en
Publication of JPS5516979B2 publication Critical patent/JPS5516979B2/ja
Granted 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
    • C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
    • C03B37/018—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD] by glass deposition on a glass substrate, e.g. by inside-, modified-, plasma- or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD], i.e. by thin layer coating on the inside or outside of a glass tube or on a glass rod
    • C03B37/01846—Means for after-treatment or catching of worked reactant gases

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General 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 preform which makes possible producing of an optical fiber of a long length and yet high dimensional accuracy by providing an internal pressure control part which maintains the inside pressure of a quartz tube at a positive pressure to the exhaust port of the quartz tube.
JP6630877A 1977-06-07 1977-06-07 Preform producing apparatus for optical fibers Granted JPS542140A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6630877A JPS542140A (en) 1977-06-07 1977-06-07 Preform producing apparatus for optical fibers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6630877A JPS542140A (en) 1977-06-07 1977-06-07 Preform producing apparatus for optical fibers

Publications (2)

Publication Number Publication Date
JPS542140A true JPS542140A (en) 1979-01-09
JPS5516979B2 JPS5516979B2 (en) 1980-05-08

Family

ID=13312046

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6630877A Granted JPS542140A (en) 1977-06-07 1977-06-07 Preform producing apparatus for optical fibers

Country Status (1)

Country Link
JP (1) JPS542140A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55104941A (en) * 1979-02-06 1980-08-11 Nippon Telegr & Teleph Corp <Ntt> Production of preform for optical fiber
JPS55158144A (en) * 1979-05-28 1980-12-09 Nippon Telegr & Teleph Corp <Ntt> Manufacture of optical fiber base material
JPS5659638A (en) * 1979-10-19 1981-05-23 Nippon Telegr & Teleph Corp <Ntt> Manufacture of optical fiber
US4816050A (en) * 1982-03-05 1989-03-28 Cselt - Centro Studi E Laboratori Telecomunicazioni S.P.A. Process and apparatus for making optical-fiber preforms

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52103847U (en) * 1976-02-04 1977-08-06

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52103847U (en) * 1976-02-04 1977-08-06

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55104941A (en) * 1979-02-06 1980-08-11 Nippon Telegr & Teleph Corp <Ntt> Production of preform for optical fiber
JPS55158144A (en) * 1979-05-28 1980-12-09 Nippon Telegr & Teleph Corp <Ntt> Manufacture of optical fiber base material
JPS5659638A (en) * 1979-10-19 1981-05-23 Nippon Telegr & Teleph Corp <Ntt> Manufacture of optical fiber
US4816050A (en) * 1982-03-05 1989-03-28 Cselt - Centro Studi E Laboratori Telecomunicazioni S.P.A. Process and apparatus for making optical-fiber preforms

Also Published As

Publication number Publication date
JPS5516979B2 (en) 1980-05-08

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