JPS53136850A - Production of preform for optical transmission fibers - Google Patents

Production of preform for optical transmission fibers

Info

Publication number
JPS53136850A
JPS53136850A JP5160277A JP5160277A JPS53136850A JP S53136850 A JPS53136850 A JP S53136850A JP 5160277 A JP5160277 A JP 5160277A JP 5160277 A JP5160277 A JP 5160277A JP S53136850 A JPS53136850 A JP S53136850A
Authority
JP
Japan
Prior art keywords
preform
production
optical transmission
transmission fibers
core bar
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
JP5160277A
Other languages
Japanese (ja)
Inventor
Seiji Shibuya
Toshiaki Kuroba
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.)
Furukawa Electric Co Ltd
Original Assignee
Furukawa Electric Co 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 Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Priority to JP5160277A priority Critical patent/JPS53136850A/en
Publication of JPS53136850A publication Critical patent/JPS53136850A/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]
    • C03B37/01446—Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering
    • C03B37/0146—Furnaces therefor, e.g. muffle tubes, furnace linings

Abstract

PURPOSE:To prevent the production of air bubbles which can be a cause for degraded quality around core bar and the variation sof refractieve index of preform by subsequently vitrifying untreated glass layer from the inner layer by making effective use of its core bar.
JP5160277A 1977-05-04 1977-05-04 Production of preform for optical transmission fibers Pending JPS53136850A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5160277A JPS53136850A (en) 1977-05-04 1977-05-04 Production of preform for optical transmission fibers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5160277A JPS53136850A (en) 1977-05-04 1977-05-04 Production of preform for optical transmission fibers

Publications (1)

Publication Number Publication Date
JPS53136850A true JPS53136850A (en) 1978-11-29

Family

ID=12891440

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5160277A Pending JPS53136850A (en) 1977-05-04 1977-05-04 Production of preform for optical transmission fibers

Country Status (1)

Country Link
JP (1) JPS53136850A (en)

Similar Documents

Publication Publication Date Title
GB2003131B (en) Method of and apparatus for manufacturing a glass optical transmission fibre preform
GB2083806B (en) Fabrication methods of doped silica glass and optical fibre preform by using the doped silica glass
JPS53143342A (en) Production method of preform for optical fiber
JPS541046A (en) Production of preform of silica optical fiber
GB2067180B (en) Process for producing a glass preform for optical fibre
DE3166036D1 (en) Method of producing an optical fibre having a core which has a non-circular cross-section and double crucible for use in this method
JPS53136850A (en) Production of preform for optical transmission fibers
GB2056966B (en) Process for producing an optical fibre preform
JPS5394944A (en) Optical transmission path and its production
JPS5512947A (en) Light communication fiber
JPS51119237A (en) Manufacturing method of glass fiber for optical communication
JPS5431756A (en) Terminating method of silicone clad optical fibers
JPS5392145A (en) Method of fabricating light transmission fiber bar mother material
JPS52149134A (en) Preparation of mother material for optical fiber
JPS53144758A (en) Production of glass fibers for optical transmission
JPS53138353A (en) Production of preform for optical fiber
JPS52156639A (en) Preparation of glass fiber for optical transmission
ATE44379T1 (en) PROCESS FOR MAKING A PREFORM FOR DRAWING OPTICAL FIBERS.
JPS5226233A (en) Process for fabricating optical transmission lines
JPS5413350A (en) Production of optical fiber
JPS5258548A (en) Optical fiber
JPS52141235A (en) Production for light transmitting fiber
JPS5346742A (en) Production of optical fiber
JPS5277734A (en) Production of optical fibers
JPS53120447A (en) Production of light transmitting wire