JPS5711842A - Preparation of base material for optical fiber and preparing apparatus - Google Patents

Preparation of base material for optical fiber and preparing apparatus

Info

Publication number
JPS5711842A
JPS5711842A JP8589180A JP8589180A JPS5711842A JP S5711842 A JPS5711842 A JP S5711842A JP 8589180 A JP8589180 A JP 8589180A JP 8589180 A JP8589180 A JP 8589180A JP S5711842 A JPS5711842 A JP S5711842A
Authority
JP
Japan
Prior art keywords
base material
furnace
glass base
diameter
porous glass
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
JP8589180A
Other languages
Japanese (ja)
Other versions
JPS6356178B2 (en
Inventor
Masao Kawachi
Akira Tomaru
Shoichi Sudo
Takao Edahiro
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP8589180A priority Critical patent/JPS5711842A/en
Publication of JPS5711842A publication Critical patent/JPS5711842A/en
Publication of JPS6356178B2 publication Critical patent/JPS6356178B2/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]
    • C03B37/01466—Means for changing or stabilising the diameter or form of tubes or rods

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 it possible to change a porous glass base material having a large diameter into a transparent glass base material, by reducing the dimension of the porous glass base material prepared by the VAD method under preheating, and subjecting the material to a treatment for obtaining the treansparent glass base material. CONSTITUTION:A heating furnace preparing transparent glass is constituted of a preheating furnace (5a) for carrying out only the reduction in the dimension of a porous glass base material and a high-temperature heating furnace (5b) for carrying out the final transparentizing (clarifying) having a smaller capacity than the furnace (5a). Fine particles of core and cladding fine glass particles are deposited on a starting base material 3 by synthetic torches 1 and 2 respectively to grow a porous glass base material 4 having a diameter of 100mm.. The diameter of the resultant base material 4 is then reduced to about 60mm. during the passage of the furance (5a) at about 1,300 deg.C. The temporarily sintered material 4' is completely deaerated during the passage of the furnace (5b) at about 1,550 deg.C to give a transparent base material 6 having a diameter of about 50mm.. The temperature control of the furnaces (5a) and (5b) provides the stable conditions (maintenance) of furnace core tubes 8a and 8b of large and small diameters without deformation, damage and consumption even in operation for a long time.
JP8589180A 1980-06-26 1980-06-26 Preparation of base material for optical fiber and preparing apparatus Granted JPS5711842A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8589180A JPS5711842A (en) 1980-06-26 1980-06-26 Preparation of base material for optical fiber and preparing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8589180A JPS5711842A (en) 1980-06-26 1980-06-26 Preparation of base material for optical fiber and preparing apparatus

Publications (2)

Publication Number Publication Date
JPS5711842A true JPS5711842A (en) 1982-01-21
JPS6356178B2 JPS6356178B2 (en) 1988-11-07

Family

ID=13871508

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8589180A Granted JPS5711842A (en) 1980-06-26 1980-06-26 Preparation of base material for optical fiber and preparing apparatus

Country Status (1)

Country Link
JP (1) JPS5711842A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57140328A (en) * 1981-02-20 1982-08-30 Hitachi Ltd Manufacture of base material for optical fiber
JPS6046940A (en) * 1983-08-22 1985-03-14 Furukawa Electric Co Ltd:The Preparation of parent material for optical glass and its device
JPS6172644A (en) * 1984-09-19 1986-04-14 Sumitomo Electric Ind Ltd Manufacture of optical fiber having low transmission loss
CN111377605A (en) * 2018-12-25 2020-07-07 住友电气工业株式会社 Method for manufacturing optical fiber preform

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020180466A1 (en) 2019-03-05 2020-09-10 Corning Incorporated System and methods for processing an optical fiber preform

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57140328A (en) * 1981-02-20 1982-08-30 Hitachi Ltd Manufacture of base material for optical fiber
JPS6046940A (en) * 1983-08-22 1985-03-14 Furukawa Electric Co Ltd:The Preparation of parent material for optical glass and its device
JPS6328855B2 (en) * 1983-08-22 1988-06-10 Furukawa Denki Kogyo Kk
JPS6172644A (en) * 1984-09-19 1986-04-14 Sumitomo Electric Ind Ltd Manufacture of optical fiber having low transmission loss
JPH05350B2 (en) * 1984-09-19 1993-01-05 Sumitomo Electric Industries
CN111377605A (en) * 2018-12-25 2020-07-07 住友电气工业株式会社 Method for manufacturing optical fiber preform

Also Published As

Publication number Publication date
JPS6356178B2 (en) 1988-11-07

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