JPS5654245A - Preparation of low-oh optical fiber matrix - Google Patents

Preparation of low-oh optical fiber matrix

Info

Publication number
JPS5654245A
JPS5654245A JP13079279A JP13079279A JPS5654245A JP S5654245 A JPS5654245 A JP S5654245A JP 13079279 A JP13079279 A JP 13079279A JP 13079279 A JP13079279 A JP 13079279A JP S5654245 A JPS5654245 A JP S5654245A
Authority
JP
Japan
Prior art keywords
flame
chlorine
porous glass
arrow
glass matrix
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
JP13079279A
Other languages
Japanese (ja)
Inventor
Katsuyuki Imoto
Masao Sumi
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 JP13079279A priority Critical patent/JPS5654245A/en
Publication of JPS5654245A publication Critical patent/JPS5654245A/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
    • C03B37/014—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]
    • C03B37/01413—Reactant delivery systems
    • C03B37/0142—Reactant deposition burners
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/04—Multi-nested ports
    • C03B2207/06—Concentric circular ports
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/36—Fuel or oxidant details, e.g. flow rate, flow rate ratio, fuel additives
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/40—Mechanical flame shields
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/46—Comprising performance enhancing means, e.g. electrostatic charge or built-in heater

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 easily provide a low-OH optical fiber matrix without reducing its productivity by a method wherein during the growing of a porous glass matrix a chlorine atmosphere treatment is performed so as to control migration of OH gp. into the porous glass matrix. CONSTITUTION:A flame-hydrolysis burner 1 is used to produce a flame 2 including fine glass particles. The flame is used to grow a porous glass matrix 3 on the target 4 which is moving in the arrow direction 5 while revolving itself in the arrow 6 direction. Under this condition, a chlorine-containing oxidizing gas is introduced in the arrow direction 8 from the inlet of the gas-jet device 7 installed around the flame 2. As shown by the arrow 8', the chlorine-containing oxidizing gas is jetted from the periphery of the flame onto the flame so that such a gas is diffused and permeated into the flame. This causes H2O and OH ions in the flame to react with the chlorine-containing oxidizing gas. In this manner, H2O and OH ions are prevented from migrating into the porous glass matrix.
JP13079279A 1979-10-12 1979-10-12 Preparation of low-oh optical fiber matrix Pending JPS5654245A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13079279A JPS5654245A (en) 1979-10-12 1979-10-12 Preparation of low-oh optical fiber matrix

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13079279A JPS5654245A (en) 1979-10-12 1979-10-12 Preparation of low-oh optical fiber matrix

Publications (1)

Publication Number Publication Date
JPS5654245A true JPS5654245A (en) 1981-05-14

Family

ID=15042790

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13079279A Pending JPS5654245A (en) 1979-10-12 1979-10-12 Preparation of low-oh optical fiber matrix

Country Status (1)

Country Link
JP (1) JPS5654245A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6060939A (en) * 1983-09-14 1985-04-08 Furukawa Electric Co Ltd:The Method for depositing fine glass particles for optical fiber
JPS60264338A (en) * 1984-06-11 1985-12-27 Furukawa Electric Co Ltd:The Manufacture of optical fiber preform
EP1538130A1 (en) * 2003-12-05 2005-06-08 Shin-Etsu Chemical Co., Ltd. Burner and method for the manufacture of synthetic quartz glass

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6060939A (en) * 1983-09-14 1985-04-08 Furukawa Electric Co Ltd:The Method for depositing fine glass particles for optical fiber
JPS60264338A (en) * 1984-06-11 1985-12-27 Furukawa Electric Co Ltd:The Manufacture of optical fiber preform
JPH0525818B2 (en) * 1984-06-11 1993-04-14 Furukawa Electric Co Ltd
EP1538130A1 (en) * 2003-12-05 2005-06-08 Shin-Etsu Chemical Co., Ltd. Burner and method for the manufacture of synthetic quartz glass
US8650912B2 (en) 2003-12-05 2014-02-18 Shin-Etsu Chemical Co., Ltd. Burner and method for the manufacture of synthetic quartz glass

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