JPS5711839A - Preparation of base material for optical fiber - Google Patents

Preparation of base material for optical fiber

Info

Publication number
JPS5711839A
JPS5711839A JP8430480A JP8430480A JPS5711839A JP S5711839 A JPS5711839 A JP S5711839A JP 8430480 A JP8430480 A JP 8430480A JP 8430480 A JP8430480 A JP 8430480A JP S5711839 A JPS5711839 A JP S5711839A
Authority
JP
Japan
Prior art keywords
gas
jetted
carbon monoxide
raw material
optical fiber
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
JP8430480A
Other languages
Japanese (ja)
Inventor
Tomoo Yanase
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP8430480A priority Critical patent/JPS5711839A/en
Publication of JPS5711839A publication Critical patent/JPS5711839A/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
    • C03B2207/04—Multi-nested ports
    • C03B2207/08—Recessed or protruding ports
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/20—Specific substances in specified ports, e.g. all gas flows specified
    • 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
    • C03B2207/38—Fuel combinations or non-standard fuels, e.g. H2+CH4, ethane
    • 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
    • C03B2207/50—Multiple burner arrangements

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 reduce the hydroxyl group content without reducing the productivity in initiating the oxidation reaction by the vapor phase axial deposition method for preparing a base material for an optical fiber, by adding an inert gas to a combustion flame of carbon monoxide gas and oxygen gas. CONSTITUTION:Fine mixed glass powder of SiO2 with GeO2 and P2O3 are jetted from a core oxyhydrogen burner 11 with argon as a carrier gas, and carbon monoxide gas and oxygen gas are fed thereto. Fine mixed glass powder of SiO2 with P2O3 are then jetted from a cladding oxyhydrogen burner 12 with argon gas, and carbon monoxide gas and oxygen gas are fed thereto. A sintered glass body 13 is thus formed and then deaerated by heating with a heater 14 to give a transparent base material 15 for an optical fiber. The burners 11 and 12 have such a structure as to prevent the deposition of the gaseous glass raw material at the jetting port 21 by enclosing the periphery of the gaseous glass raw material with argon gas jetted from a jetting port 22 on jetting of the gaseous glass raw material from the outlet 21. The deposition efficiency of the raw material is improved by reducing the temperature of the combustion flame by the carbon monoxide gas and the oxygen gas jetted from jetting ports 23 and 24.
JP8430480A 1980-06-21 1980-06-21 Preparation of base material for optical fiber Pending JPS5711839A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8430480A JPS5711839A (en) 1980-06-21 1980-06-21 Preparation of base material for optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8430480A JPS5711839A (en) 1980-06-21 1980-06-21 Preparation of base material for optical fiber

Publications (1)

Publication Number Publication Date
JPS5711839A true JPS5711839A (en) 1982-01-21

Family

ID=13826738

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8430480A Pending JPS5711839A (en) 1980-06-21 1980-06-21 Preparation of base material for optical fiber

Country Status (1)

Country Link
JP (1) JPS5711839A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59111937A (en) * 1982-12-15 1984-06-28 Furukawa Electric Co Ltd:The Processing of optical fiber matrix
JPS6172643A (en) * 1984-09-19 1986-04-14 Sumitomo Electric Ind Ltd Manufacture of optical fiber preform
JPS62252342A (en) * 1986-04-24 1987-11-04 Nippon Telegr & Teleph Corp <Ntt> Optical fiber and production thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59111937A (en) * 1982-12-15 1984-06-28 Furukawa Electric Co Ltd:The Processing of optical fiber matrix
JPS6172643A (en) * 1984-09-19 1986-04-14 Sumitomo Electric Ind Ltd Manufacture of optical fiber preform
JPH0583502B2 (en) * 1984-09-19 1993-11-26 Sumitomo Denki Kogyo Kk
JPS62252342A (en) * 1986-04-24 1987-11-04 Nippon Telegr & Teleph Corp <Ntt> Optical fiber and production thereof

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