JPS5678440A - Production of focussing type optical fiber - Google Patents

Production of focussing type optical fiber

Info

Publication number
JPS5678440A
JPS5678440A JP15585379A JP15585379A JPS5678440A JP S5678440 A JPS5678440 A JP S5678440A JP 15585379 A JP15585379 A JP 15585379A JP 15585379 A JP15585379 A JP 15585379A JP S5678440 A JPS5678440 A JP S5678440A
Authority
JP
Japan
Prior art keywords
layer
core glass
burner
ratio
fiber
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
JP15585379A
Other languages
Japanese (ja)
Other versions
JPS6291B2 (en
Inventor
Koji Okamura
Shigeki Hamashima
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP15585379A priority Critical patent/JPS5678440A/en
Publication of JPS5678440A publication Critical patent/JPS5678440A/en
Publication of JPS6291B2 publication Critical patent/JPS6291B2/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]
    • C03B37/018—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:Everytime the core glass layer is laminated with one layer, the moving speed of the burner is increased at a prescribed ratio to decrease the amount of piled layer at a certain ratio, whereby the thickness of each glass layer is made almost the same, when the fiber is made solid. CONSTITUTION:When optical fiber is formed by introducing argon gas and oxygen gas carrying e.g., silicon tetrachloride and germanium tretracloride into quartz pipe 21, allowing a heating burner 21 to move from one end D to the other end F to cause vapor phase reactions and pile up core glass layers in order unitl the quartz pipe 21 is fully filled and drawing the pipe under heating, the moving speed of the burner is increased at a prescribed ratio everytime one core glass layer is formed. Thus, a glass laminate of which each layer contains lesser amout than the former layer at a specific ratio is formed and made solid to become almost same thick in layers. Therefore, riple intervals between core glass layers become narrow to give fiber of focussing type in wide ranges.
JP15585379A 1979-11-30 1979-11-30 Production of focussing type optical fiber Granted JPS5678440A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15585379A JPS5678440A (en) 1979-11-30 1979-11-30 Production of focussing type optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15585379A JPS5678440A (en) 1979-11-30 1979-11-30 Production of focussing type optical fiber

Publications (2)

Publication Number Publication Date
JPS5678440A true JPS5678440A (en) 1981-06-27
JPS6291B2 JPS6291B2 (en) 1987-01-06

Family

ID=15614920

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15585379A Granted JPS5678440A (en) 1979-11-30 1979-11-30 Production of focussing type optical fiber

Country Status (1)

Country Link
JP (1) JPS5678440A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0665191A1 (en) * 1994-01-27 1995-08-02 PIRELLI GENERAL plc A method of forming an optical fibre preform
NL1032140C2 (en) * 2006-07-10 2008-01-15 Draka Comteq Bv Method for manufacturing an optical preform by means of an internal vapor deposition process, as well as a preform obtained therewith.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0665191A1 (en) * 1994-01-27 1995-08-02 PIRELLI GENERAL plc A method of forming an optical fibre preform
NL1032140C2 (en) * 2006-07-10 2008-01-15 Draka Comteq Bv Method for manufacturing an optical preform by means of an internal vapor deposition process, as well as a preform obtained therewith.
EP1878708A1 (en) * 2006-07-10 2008-01-16 Draka Comteq B.V. Method for manufacturing an optical preform by means of an internal vapour deposition process, as well as a preform obtained thereby
US7519256B2 (en) 2006-07-10 2009-04-14 Draka Comteq B.V. Method for making an optical fiber preform via internal vapor deposition

Also Published As

Publication number Publication date
JPS6291B2 (en) 1987-01-06

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