JPS5688837A - Method and apparatus for preparation of optical fiber stock by vapor-phase axial deposition method - Google Patents

Method and apparatus for preparation of optical fiber stock by vapor-phase axial deposition method

Info

Publication number
JPS5688837A
JPS5688837A JP16470579A JP16470579A JPS5688837A JP S5688837 A JPS5688837 A JP S5688837A JP 16470579 A JP16470579 A JP 16470579A JP 16470579 A JP16470579 A JP 16470579A JP S5688837 A JPS5688837 A JP S5688837A
Authority
JP
Japan
Prior art keywords
soot
optical fiber
protecting
stock
vapor
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
JP16470579A
Other languages
Japanese (ja)
Inventor
Motohiro Nakahara
Hideo Kakuzen
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
Sumitomo Electric Industries Ltd
Original Assignee
Nippon Telegraph and Telephone Corp
Sumitomo Electric Industries 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 Nippon Telegraph and Telephone Corp, Sumitomo Electric Industries Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP16470579A priority Critical patent/JPS5688837A/en
Publication of JPS5688837A publication Critical patent/JPS5688837A/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]
    • C03B37/01406—Deposition reactors therefor
    • 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
    • C03B37/01202—Means for storing or carrying optical fibre preforms, e.g. containers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

PURPOSE:To prevent the contamination of the stock for optical fiber with impurities, by providing a soot-protecting chamber in a protecting vessel for the preparation of the stock by the vapor-phase axial deposition method, and filling the soot- protecting chamber with inert gas or a nonreducing gas at a pressure higher than the exterior pressure. CONSTITUTION:In the preparation of the stock for optical fiber by the vapor-phase axial deposition method which comprises the flame hydrolysis of the raw material of glass and a raw material for the control of refractive index in a protecting vessel 12 with an oxyhydrogen flame 14 to effect the deposition and growth of soot to one end of a supporting rod 13, while pulling up the supporting rod 13 so as to keep the distance between the oxyhydrogen flame 14 and the growing part of the soot 20 constant, a soot-protecting chamber 17 is placed in the protecting vessel 12 to protect the soot 19. The soot-protecting chamber 17 is filled with inert gas or nonreducing gas at a pressure equal to or higher than the exterior pressure of prevent the contamiation of the optical fiber stock with impurities.
JP16470579A 1979-12-20 1979-12-20 Method and apparatus for preparation of optical fiber stock by vapor-phase axial deposition method Pending JPS5688837A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16470579A JPS5688837A (en) 1979-12-20 1979-12-20 Method and apparatus for preparation of optical fiber stock by vapor-phase axial deposition method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16470579A JPS5688837A (en) 1979-12-20 1979-12-20 Method and apparatus for preparation of optical fiber stock by vapor-phase axial deposition method

Publications (1)

Publication Number Publication Date
JPS5688837A true JPS5688837A (en) 1981-07-18

Family

ID=15798303

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16470579A Pending JPS5688837A (en) 1979-12-20 1979-12-20 Method and apparatus for preparation of optical fiber stock by vapor-phase axial deposition method

Country Status (1)

Country Link
JP (1) JPS5688837A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1405833A1 (en) * 2001-06-14 2004-04-07 Sumitomo Electric Industries, Ltd. Device and method for producing stack of fine glass particles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1405833A1 (en) * 2001-06-14 2004-04-07 Sumitomo Electric Industries, Ltd. Device and method for producing stack of fine glass particles
EP1405833A4 (en) * 2001-06-14 2012-02-22 Sumitomo Electric Industries Device and method for producing stack of fine glass particles

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