JPS5795839A - Manufacture of base material for optical fiber - Google Patents

Manufacture of base material for optical fiber

Info

Publication number
JPS5795839A
JPS5795839A JP17211380A JP17211380A JPS5795839A JP S5795839 A JPS5795839 A JP S5795839A JP 17211380 A JP17211380 A JP 17211380A JP 17211380 A JP17211380 A JP 17211380A JP S5795839 A JPS5795839 A JP S5795839A
Authority
JP
Japan
Prior art keywords
reactor
cross
base material
nozzle
sectional area
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
JP17211380A
Other languages
Japanese (ja)
Other versions
JPS6137214B2 (en
Inventor
Katsuyuki Imoto
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.)
Hitachi Cable Ltd
Hitachi Ltd
Original Assignee
Hitachi Cable Ltd
Hitachi 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 Hitachi Cable Ltd, Hitachi Ltd filed Critical Hitachi Cable Ltd
Priority to JP17211380A priority Critical patent/JPS5795839A/en
Publication of JPS5795839A publication Critical patent/JPS5795839A/en
Publication of JPS6137214B2 publication Critical patent/JPS6137214B2/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]
    • C03B37/0144—Means for after-treatment or catching of worked reactant gases
    • 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]
    • C03B37/01406—Deposition reactors therefor

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 make the flame state of a burner independent of the internal pressure of a reactor by specifying the ratios of the cross-sectional area of the reactor to that of a gaseous flow spouted from the nozzle of the burner and that of a glass base material, and the position of an exhaust port in a vapor axial deposition method. CONSTITUTION:A reactor 6 having diameter Dh is made >=25 times as large as a gaseous flow having diameter Dn spouted from the nozzle of a burner 1 in cross-sectional area and >=4 times as large as a porous glass base material 2 having diameter Ds in cross-sectional area. An exhaust port is attached to the side of the reactor 6 at a position (yA) >=15 Dn away from the nozzle in the flowing direction of the gaseous flow. Thus, changes in the temp. distribution of a flame 5 within a cross section and in the extent of the temp. fluctuation are inhibited, and the flame 5 is hardly changed even if the internal pressure of the reactor 6 is made uneven to some degree. Accordingly, a change in the refractive index distribution of the resulting optical fiber in the axial direction is almost prevented, and unevenness in the zone characteristics is reduced.
JP17211380A 1980-12-08 1980-12-08 Manufacture of base material for optical fiber Granted JPS5795839A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17211380A JPS5795839A (en) 1980-12-08 1980-12-08 Manufacture of base material for optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17211380A JPS5795839A (en) 1980-12-08 1980-12-08 Manufacture of base material for optical fiber

Publications (2)

Publication Number Publication Date
JPS5795839A true JPS5795839A (en) 1982-06-14
JPS6137214B2 JPS6137214B2 (en) 1986-08-22

Family

ID=15935788

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17211380A Granted JPS5795839A (en) 1980-12-08 1980-12-08 Manufacture of base material for optical fiber

Country Status (1)

Country Link
JP (1) JPS5795839A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009132549A (en) * 2007-11-29 2009-06-18 Covalent Materials Tokuyama Corp Synthetic quartz glass production device
JP2009132551A (en) * 2007-11-29 2009-06-18 Covalent Materials Corp Manufacturing apparatus of synthetic silica glass
JP2012158516A (en) * 2012-03-28 2012-08-23 Covalent Materials Corp Device for producing synthetic silica glass

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009132549A (en) * 2007-11-29 2009-06-18 Covalent Materials Tokuyama Corp Synthetic quartz glass production device
JP2009132551A (en) * 2007-11-29 2009-06-18 Covalent Materials Corp Manufacturing apparatus of synthetic silica glass
JP2012158516A (en) * 2012-03-28 2012-08-23 Covalent Materials Corp Device for producing synthetic silica glass

Also Published As

Publication number Publication date
JPS6137214B2 (en) 1986-08-22

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