JPS5727933A - Manufacture of base material for optical fiber - Google Patents

Manufacture of base material for optical fiber

Info

Publication number
JPS5727933A
JPS5727933A JP10009780A JP10009780A JPS5727933A JP S5727933 A JPS5727933 A JP S5727933A JP 10009780 A JP10009780 A JP 10009780A JP 10009780 A JP10009780 A JP 10009780A JP S5727933 A JPS5727933 A JP S5727933A
Authority
JP
Japan
Prior art keywords
tube
burner
flame
temp
distance
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
JP10009780A
Other languages
Japanese (ja)
Inventor
Tsutomu Yabuki
Junkichi Nakagawa
Toshihide Tokunaga
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.)
Hitachi Cable Ltd
Original Assignee
Hitachi Cable 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 Hitachi Cable Ltd filed Critical Hitachi Cable Ltd
Priority to JP10009780A priority Critical patent/JPS5727933A/en
Publication of JPS5727933A publication Critical patent/JPS5727933A/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]
    • C03B37/018—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
    • C03B37/01861—Means for changing or stabilising the diameter or form of tubes or rods
    • 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
    • C03B37/01815—Reactant deposition burners or deposition heating means

Abstract

PURPOSE:To strictly control the refractive index and to manufacture an optical fiber with low loss in a wide zone by detecting the distance between a glass tube and a heating source and heating the tube while conducting control so as to keep the distance uniform. CONSTITUTION:A glass tube 1 is heated with a burner 4, and gaseous hydrogen and gaseous oxygen are fed into the burner 4 while setting the flow rates with a mass flow controller 8 so as to keep a flame uniform. The flame composed of an inner flame 2 and an outer flame 3 is regulated so that the highest temp. part of the flame contacts with the tube 1. The temp. of the heated part of the tube 1 is measured with an optical pyrometer 6, it is fed back to a table 5 fixing the burner 4, and the distance between the burner 4 and the tube 1 is controlled so as to attain a prescribed temp. For example, when the burner 4 is moved 50 times in the longitudinal direction of the tube 1 by this method, and the diameter of the tube 1 is reduced from 20mm. to 16mm., the temp. change is + or -5 deg.C.
JP10009780A 1980-07-22 1980-07-22 Manufacture of base material for optical fiber Pending JPS5727933A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10009780A JPS5727933A (en) 1980-07-22 1980-07-22 Manufacture of base material for optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10009780A JPS5727933A (en) 1980-07-22 1980-07-22 Manufacture of base material for optical fiber

Publications (1)

Publication Number Publication Date
JPS5727933A true JPS5727933A (en) 1982-02-15

Family

ID=14264890

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10009780A Pending JPS5727933A (en) 1980-07-22 1980-07-22 Manufacture of base material for optical fiber

Country Status (1)

Country Link
JP (1) JPS5727933A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100496449B1 (en) * 2002-06-28 2005-06-20 엘에스전선 주식회사 Outside vapor deposition apparatus for making optical fiber preform and method of making optical fiber preform using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100496449B1 (en) * 2002-06-28 2005-06-20 엘에스전선 주식회사 Outside vapor deposition apparatus for making optical fiber preform and method of making optical fiber preform using the same

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