JPS5590432A - Preparation of optical fiber - Google Patents

Preparation of optical fiber

Info

Publication number
JPS5590432A
JPS5590432A JP16315678A JP16315678A JPS5590432A JP S5590432 A JPS5590432 A JP S5590432A JP 16315678 A JP16315678 A JP 16315678A JP 16315678 A JP16315678 A JP 16315678A JP S5590432 A JPS5590432 A JP S5590432A
Authority
JP
Japan
Prior art keywords
soot
vitrified
start point
tube
optical 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.)
Pending
Application number
JP16315678A
Other languages
Japanese (ja)
Inventor
Fumi Kikuchi
Masaji Miki
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 JP16315678A priority Critical patent/JPS5590432A/en
Publication of JPS5590432A publication Critical patent/JPS5590432A/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
    • C03B37/01846—Means for after-treatment or catching of worked reactant gases

Abstract

PURPOSE:To eliminate the need for the removing work of soot, and to improve the quality of an optical fiber blank, by a method wherein soot is formed and vitrified toward the exhaust side from the gaseous phase side in a reaction tube and soot is vitrified at an end portion at the exhaust side. CONSTITUTION:Soot is made up and vitrified in such a manner that reaction gas is introduced into a reaction tube 1 from the gaseous phase system side and the tube 1 up to a stop point sp1 from a start point st1 is heated by shifting a main burner 7. Unnecessary soot is vitrified to ensure that the introduction of raw material gas is suspended and a harmonica burner 8 is moved up to a stop point sp2 from a start point st2. The main burner 7 is returned to the start point sp1 during the time. The vitrified soot is accumulated by repeating this operation. According to this method, the inflow of the soot to a support tube 3 is decreased.
JP16315678A 1978-12-26 1978-12-26 Preparation of optical fiber Pending JPS5590432A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16315678A JPS5590432A (en) 1978-12-26 1978-12-26 Preparation of optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16315678A JPS5590432A (en) 1978-12-26 1978-12-26 Preparation of optical fiber

Publications (1)

Publication Number Publication Date
JPS5590432A true JPS5590432A (en) 1980-07-09

Family

ID=15768283

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16315678A Pending JPS5590432A (en) 1978-12-26 1978-12-26 Preparation of optical fiber

Country Status (1)

Country Link
JP (1) JPS5590432A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10414959B2 (en) 2012-08-27 2019-09-17 Yingui Sun Artificial snow at ambient temperature

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5395650A (en) * 1977-02-02 1978-08-22 Hitachi Ltd Production of optical fiber

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5395650A (en) * 1977-02-02 1978-08-22 Hitachi Ltd Production of optical fiber

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10414959B2 (en) 2012-08-27 2019-09-17 Yingui Sun Artificial snow at ambient temperature

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