JPS649830A - Production of preform for optical fiber - Google Patents

Production of preform for optical fiber

Info

Publication number
JPS649830A
JPS649830A JP16402187A JP16402187A JPS649830A JP S649830 A JPS649830 A JP S649830A JP 16402187 A JP16402187 A JP 16402187A JP 16402187 A JP16402187 A JP 16402187A JP S649830 A JPS649830 A JP S649830A
Authority
JP
Japan
Prior art keywords
vessel
pressure
preform
open air
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
JP16402187A
Other languages
Japanese (ja)
Other versions
JP2557651B2 (en
Inventor
Suehiro Miyamoto
Katsuyuki Seto
Kenji Nishide
Taiichiro Tanaka
Tetsuya Sakai
Hideki Sasaki
Yukio Kato
Tadaaki Nemoto
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
Original Assignee
Fujikura 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 Fujikura Ltd filed Critical Fujikura Ltd
Priority to JP62164021A priority Critical patent/JP2557651B2/en
Publication of JPS649830A publication Critical patent/JPS649830A/en
Application granted granted Critical
Publication of JP2557651B2 publication Critical patent/JP2557651B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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]
    • C03B37/01406—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 prevent penetration of rubbish and dust into a reaction vessel and obtain an optical fiber preform having low loss, by maintaining the inner reaction vessel to more negative pressure than the circumference as well as maintaining the circumference to clean atmosphere and subjecting a glass raw material to flame hydrolysis or thermal oxidation. CONSTITUTION:A vessel 3 for isolating open air is provided around a reaction vessel 1 for obtaining a porous glass preform 2 and the first burner 4 for producing core glass fine powder is provided in the vessel 1. Moreover, the second burner 7 for producing glass fine powder capable of forming cladding is provided in the vessel 1. The preformer 2 is supported by a quartz glass rod 13. In above- mentioned constitution, the pressure is controlled so as to P1<P2<P3, when pressure in vessel 1, pressure in vessel 3 and pressure of open air are kept to P1, P2 and P3 respectively by feeding clean air through a filter 17 into the vessel 3. By the above-mentioned method, clean air is charged into the vessel so as to enable to isolate open air and high-quality porous preform can be obtained.
JP62164021A 1987-07-02 1987-07-02 Optical fiber base material manufacturing method Expired - Lifetime JP2557651B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62164021A JP2557651B2 (en) 1987-07-02 1987-07-02 Optical fiber base material manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62164021A JP2557651B2 (en) 1987-07-02 1987-07-02 Optical fiber base material manufacturing method

Publications (2)

Publication Number Publication Date
JPS649830A true JPS649830A (en) 1989-01-13
JP2557651B2 JP2557651B2 (en) 1996-11-27

Family

ID=15785281

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62164021A Expired - Lifetime JP2557651B2 (en) 1987-07-02 1987-07-02 Optical fiber base material manufacturing method

Country Status (1)

Country Link
JP (1) JP2557651B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4945232A (en) * 1989-09-28 1990-07-31 Mitsubishi Denki Kabushiki Kaisha Angle measuring device
JPH07300332A (en) * 1994-05-02 1995-11-14 Fujikura Ltd Optical fiber base material manufacturing equipment
JP2009126716A (en) * 2007-11-19 2009-06-11 Sumitomo Electric Ind Ltd Method for producing glass particulate deposit
US10308541B2 (en) 2014-11-13 2019-06-04 Gerresheimer Glas Gmbh Glass forming machine particle filter, a plunger unit, a blow head, a blow head support and a glass forming machine adapted to or comprising said filter

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5636899U (en) * 1979-08-30 1981-04-08
JPS62187121A (en) * 1986-02-10 1987-08-15 Furukawa Electric Co Ltd:The Synthetic glass manufacturing equipment

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5636899U (en) * 1979-08-30 1981-04-08
JPS62187121A (en) * 1986-02-10 1987-08-15 Furukawa Electric Co Ltd:The Synthetic glass manufacturing equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4945232A (en) * 1989-09-28 1990-07-31 Mitsubishi Denki Kabushiki Kaisha Angle measuring device
JPH07300332A (en) * 1994-05-02 1995-11-14 Fujikura Ltd Optical fiber base material manufacturing equipment
JP2009126716A (en) * 2007-11-19 2009-06-11 Sumitomo Electric Ind Ltd Method for producing glass particulate deposit
US10308541B2 (en) 2014-11-13 2019-06-04 Gerresheimer Glas Gmbh Glass forming machine particle filter, a plunger unit, a blow head, a blow head support and a glass forming machine adapted to or comprising said filter

Also Published As

Publication number Publication date
JP2557651B2 (en) 1996-11-27

Similar Documents

Publication Publication Date Title
GB2016445A (en) Manufacturing an optical transmission fibre
HK68289A (en) A method for producing a glass preform for an optical fibre
JPS55100233A (en) Production of optical fiber base material
JPS5767037A (en) Manufacture of base material for single-mode optical fiber
JPS649831A (en) Production of preform for optical fiber
JPS61256937A (en) Production of optical fiber base material
JPS569230A (en) Manufacture of high purity quartz glass pipe
JPS5446051A (en) Production of soot form glass rod for optical transmission
JPS645925A (en) Production of preform for optical fiber
JPS54131044A (en) Production of parent material for optical communication fiber
JPS55158144A (en) Manufacture of optical fiber base material
JPS5617936A (en) Manufacture of base material for optical fiber
JPS5711838A (en) Preparation of cylindrical base material for optical fiber
JPS6476927A (en) Heating oven for optical fiber parent glass and its production
JPS5711842A (en) Preparation of base material for optical fiber and preparing apparatus
JPS54134129A (en) Manufacture of basic material for light transmitting fiber
JPS6418932A (en) Production of glass article and device therefor
JPS645923A (en) Production of preform for optical fiber
JPS6424039A (en) Production of optical fiber
JPS5512948A (en) Light communication fiber and method of manufacturing the same
JPS6442337A (en) Production of base material for large sized single mode optical fiber
JP2557651B2 (en) Optical fiber base material manufacturing method
JPS5532716A (en) Production of single mode optical fiber
JPS53135648A (en) Production of fibers for optical communication
JPH0764574B2 (en) Method for manufacturing rod-shaped quartz glass preform

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term