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JPS5734035A - Preparation of optical fiber preform - Google Patents

Preparation of optical fiber preform

Info

Publication number
JPS5734035A
JPS5734035A JP10737580A JP10737580A JPS5734035A JP S5734035 A JPS5734035 A JP S5734035A JP 10737580 A JP10737580 A JP 10737580A JP 10737580 A JP10737580 A JP 10737580A JP S5734035 A JPS5734035 A JP S5734035A
Authority
JP
Japan
Prior art keywords
raw material
gas
glass
quartz tube
fine powder
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
JP10737580A
Other languages
Japanese (ja)
Other versions
JPS591220B2 (en
Inventor
Takao Edahiro
Takashi Moriyama
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.)
Fujikura Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Fujikura Ltd
Nippon Telegraph and Telephone Corp
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 Fujikura Ltd, Nippon Telegraph and Telephone Corp filed Critical Fujikura Ltd
Priority to JP10737580A priority Critical patent/JPS591220B2/en
Publication of JPS5734035A publication Critical patent/JPS5734035A/en
Publication of JPS591220B2 publication Critical patent/JPS591220B2/en
Expired 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
    • C03B37/01807—Reactant delivery systems, e.g. reactant deposition burners

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 prepare an optical fiber preform containing a reduced amount of OH group exising in the core glass as a contaminant, by bubbling O2 gas passed through a dehydrating catalyst consisting of porous glass fine powder into a liquid raw material, and introducing the raw material gas into the heated quartz tube. CONSTITUTION:The raw material gas is introduced from the raw material supplying system 4 through a swivel connector 11 into the hollow part of the quartz tube 1. The raw material gas is O2 gas containing SiCl4 (raw material of glass), GeCl4, POCl3 and BBr3 (raw materials of dopant for regulating refractive index of the glass), and obtained by bubbling O2 gas in the liquid mixture of the above compounds contained in the bubbler 41 of the raw material gas supplying system 4. When the raw material gas is introduced into the quartz tube 1, glass fine powder containing metal oxides is produced by the gas-phase material reaction, and is deposited on the inner surface of the quartz tube forming a core glass. The O2 gas is dehydrated before bubbling by passing through the catalyst column 52 containing a dehydrating catalyst 51 consisting of porous glass fine powder.
JP10737580A 1980-08-05 1980-08-05 Manufacturing method of optical fiber base material Expired JPS591220B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10737580A JPS591220B2 (en) 1980-08-05 1980-08-05 Manufacturing method of optical fiber base material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10737580A JPS591220B2 (en) 1980-08-05 1980-08-05 Manufacturing method of optical fiber base material

Publications (2)

Publication Number Publication Date
JPS5734035A true JPS5734035A (en) 1982-02-24
JPS591220B2 JPS591220B2 (en) 1984-01-11

Family

ID=14457504

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10737580A Expired JPS591220B2 (en) 1980-08-05 1980-08-05 Manufacturing method of optical fiber base material

Country Status (1)

Country Link
JP (1) JPS591220B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS637893A (en) * 1986-06-27 1988-01-13 Hitachi Plant Eng & Constr Co Ltd Treatment of fluorine-containing waste water
JPH01231989A (en) * 1988-03-14 1989-09-18 Hitachi Plant Eng & Constr Co Ltd Treatment of waste water

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102519150B1 (en) * 2022-06-03 2023-04-06 (주)동일캔바스엔지니어링 Muti-fuctional loader of filter press with circulation type filter cloth

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS637893A (en) * 1986-06-27 1988-01-13 Hitachi Plant Eng & Constr Co Ltd Treatment of fluorine-containing waste water
JPH01231989A (en) * 1988-03-14 1989-09-18 Hitachi Plant Eng & Constr Co Ltd Treatment of waste water

Also Published As

Publication number Publication date
JPS591220B2 (en) 1984-01-11

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