JPS6472934A - Production of base material for distribution-shift optical fiber - Google Patents

Production of base material for distribution-shift optical fiber

Info

Publication number
JPS6472934A
JPS6472934A JP22949987A JP22949987A JPS6472934A JP S6472934 A JPS6472934 A JP S6472934A JP 22949987 A JP22949987 A JP 22949987A JP 22949987 A JP22949987 A JP 22949987A JP S6472934 A JPS6472934 A JP S6472934A
Authority
JP
Japan
Prior art keywords
pipe
sio2
glass
pure
base material
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
JP22949987A
Other languages
Japanese (ja)
Other versions
JPH085685B2 (en
Inventor
Yuichi Oga
Hiroo Kanamori
Hiroshi Suganuma
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.)
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 JP22949987A priority Critical patent/JPH085685B2/en
Publication of JPS6472934A publication Critical patent/JPS6472934A/en
Publication of JPH085685B2 publication Critical patent/JPH085685B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • C03B37/01248—Means for changing or stabilising the shape, e.g. diameter, of tubes or rods in general, e.g. collapsing by collapsing without drawing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

PURPOSE:To efficiently obtain the title base material having a low transmission loss in a short time by inserting a core rod made of pure SiO2 glass into the hollow part of a clad pipe with a pure SiO2 glass layer on its inner wall, heating, and integrating the glass and rod. CONSTITUTION:SiCl4, O2, and Cl2 are passed through the inside of the clad pipe 1 consisting of F-SiO2 glass, the pipe is heated by an oxyhydrogen burner 4 from the outside, hence the fine SiO2 particles 2 formed by the vapor-phase reaction in the pipe are thinly deposited on the inner wall of the pipe, and the layer 3 of a pure-SiO2 transparent glass body is formed in 5-500mum thickness. The pure-SiO2 core glass rod 5 is inserted into the hollow part of the pipe 1 having the layer 3, the pipe is heated by the burner 4 from the outside while passing Cl2 through the pipe, the rod 5 and the pipe 1 are collapsed and integrated, and the base material for a glass fiber having a zero-distribution shift at a 1.5mum band, consisting of an SiO2 core and an F-SiO2 clad, and having a prescribed refractive index structure is obtained.
JP22949987A 1987-09-16 1987-09-16 Method for manufacturing base material for dispersion-shifted optical fiber Expired - Fee Related JPH085685B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22949987A JPH085685B2 (en) 1987-09-16 1987-09-16 Method for manufacturing base material for dispersion-shifted optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22949987A JPH085685B2 (en) 1987-09-16 1987-09-16 Method for manufacturing base material for dispersion-shifted optical fiber

Publications (2)

Publication Number Publication Date
JPS6472934A true JPS6472934A (en) 1989-03-17
JPH085685B2 JPH085685B2 (en) 1996-01-24

Family

ID=16893130

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22949987A Expired - Fee Related JPH085685B2 (en) 1987-09-16 1987-09-16 Method for manufacturing base material for dispersion-shifted optical fiber

Country Status (1)

Country Link
JP (1) JPH085685B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0738239A4 (en) * 1993-03-02 1996-04-17 Robert M Ward Optical preform with controlled and deeply placed radial bonded interface layer
EP0716047A3 (en) * 1994-12-02 1996-10-09 Fibercore Inc Method and apparatus for producing optical fiber preform
JP2003515519A (en) * 1999-12-03 2003-05-07 ヘレウス・テネボ・アクチェンゲゼルシャフト Method for manufacturing quartz glass preform for optical fiber and preform manufactured by the method
WO2007105857A1 (en) * 2006-03-10 2007-09-20 Ls Cable Ltd. Method for manufacturing optical fiber preform, optical fiber preform and optical fiber manufactured using the same
CN104045233A (en) * 2013-03-15 2014-09-17 Ofs菲特尔有限责任公司 Large Core Multimode Optical Fibers

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0738239A4 (en) * 1993-03-02 1996-04-17 Robert M Ward Optical preform with controlled and deeply placed radial bonded interface layer
EP0716047A3 (en) * 1994-12-02 1996-10-09 Fibercore Inc Method and apparatus for producing optical fiber preform
JP2003515519A (en) * 1999-12-03 2003-05-07 ヘレウス・テネボ・アクチェンゲゼルシャフト Method for manufacturing quartz glass preform for optical fiber and preform manufactured by the method
WO2007105857A1 (en) * 2006-03-10 2007-09-20 Ls Cable Ltd. Method for manufacturing optical fiber preform, optical fiber preform and optical fiber manufactured using the same
KR100800813B1 (en) * 2006-03-10 2008-02-01 엘에스전선 주식회사 Manufacturing method of optical fiber base material, optical fiber base material and optical fiber manufactured by this method
CN104045233A (en) * 2013-03-15 2014-09-17 Ofs菲特尔有限责任公司 Large Core Multimode Optical Fibers
JP2014181175A (en) * 2013-03-15 2014-09-29 Ofs Fitel Llc Large diameter core multimode optical fiber

Also Published As

Publication number Publication date
JPH085685B2 (en) 1996-01-24

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees