JPS6424041A - Production of base material for dispersed shift fiber - Google Patents

Production of base material for dispersed shift fiber

Info

Publication number
JPS6424041A
JPS6424041A JP62179118A JP17911887A JPS6424041A JP S6424041 A JPS6424041 A JP S6424041A JP 62179118 A JP62179118 A JP 62179118A JP 17911887 A JP17911887 A JP 17911887A JP S6424041 A JPS6424041 A JP S6424041A
Authority
JP
Japan
Prior art keywords
core
sio2
soot body
contg
low
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
JP62179118A
Other languages
Japanese (ja)
Other versions
JPH0717395B2 (en
Inventor
Yuichi Oga
Hiroo Kanamori
Hiroshi Yokota
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 JP62179118A priority Critical patent/JPH0717395B2/en
Publication of JPS6424041A publication Critical patent/JPS6424041A/en
Publication of JPH0717395B2 publication Critical patent/JPH0717395B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C03B37/012Manufacture of preforms for drawing fibres or filaments
    • C03B37/014Manufacture 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]
    • C03B37/01446Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2201/00Type of glass produced
    • C03B2201/06Doped silica-based glasses
    • C03B2201/08Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant
    • C03B2201/12Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant doped with fluorine
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2201/00Type of glass produced
    • C03B2201/06Doped silica-based glasses
    • C03B2201/30Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi
    • C03B2201/31Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with germanium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Thermal Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

PURPOSE:To produce the title base material for a low-loss dispersed shift fiber at a low cost by heating and dehydrating the soot body for a core consisting of the inner SiO2 contg. GeO2 and the outer SiO2, heating the material at a low temp., adding F to the material, and then vitrifying the material. CONSTITUTION:The inner core soot body of SiO2 added with GeO2 and the outer core soot body of pure SiO2 are formed by the VAD method by using plural burners for synthesizing fine glass particles. The obtained soot body for a core is heated and dehydrated. The dehydrated soot body is heated in an atmosphere free of F at a low temp. of 1,300-1,600 deg.C which is lower than the vitrification temp. of the core soot body to increase the bulk density of the inner core soot body. The soot body for a core is heated in an atmosphere contg. F at a temp. where the soot body for a core is vitrified, and the transparent glass body for a core consisting of the inner core part of SiO2 contg. GeO2 and the outer core part of SiO2 contg. F, having 0.1-0.8 specific refractive index difference, and having 0.2-1.0 diameter ratio is obtained. A clad part consisting of SiO2 and added with F is formed on the outer periphery of the glass body, and the base material for a low-loss dispersed shift fiber is obtained.
JP62179118A 1987-07-20 1987-07-20 Manufacturing method of base material for dispersion shift fiber Expired - Lifetime JPH0717395B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62179118A JPH0717395B2 (en) 1987-07-20 1987-07-20 Manufacturing method of base material for dispersion shift fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62179118A JPH0717395B2 (en) 1987-07-20 1987-07-20 Manufacturing method of base material for dispersion shift fiber

Publications (2)

Publication Number Publication Date
JPS6424041A true JPS6424041A (en) 1989-01-26
JPH0717395B2 JPH0717395B2 (en) 1995-03-01

Family

ID=16060322

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62179118A Expired - Lifetime JPH0717395B2 (en) 1987-07-20 1987-07-20 Manufacturing method of base material for dispersion shift fiber

Country Status (1)

Country Link
JP (1) JPH0717395B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6462603A (en) * 1987-09-02 1989-03-09 Furukawa Electric Co Ltd Optical transmission fiber
US5210816A (en) * 1991-06-24 1993-05-11 The Furukawa Electric Co., Ltd. Optical fiber and process of producing same
US6175680B1 (en) 1997-03-18 2001-01-16 The Furukawa Electric Co. Ltd. Dispersion shifted optical fiber
US6802191B2 (en) * 2001-04-19 2004-10-12 Lucent Technologies Inc. Controlled collapse of depressed index optical fiber preforms

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6462603A (en) * 1987-09-02 1989-03-09 Furukawa Electric Co Ltd Optical transmission fiber
US5210816A (en) * 1991-06-24 1993-05-11 The Furukawa Electric Co., Ltd. Optical fiber and process of producing same
US6175680B1 (en) 1997-03-18 2001-01-16 The Furukawa Electric Co. Ltd. Dispersion shifted optical fiber
US6802191B2 (en) * 2001-04-19 2004-10-12 Lucent Technologies Inc. Controlled collapse of depressed index optical fiber preforms

Also Published As

Publication number Publication date
JPH0717395B2 (en) 1995-03-01

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