JPS5547235A - Production of glass fiber for light transmission - Google Patents

Production of glass fiber for light transmission

Info

Publication number
JPS5547235A
JPS5547235A JP11888878A JP11888878A JPS5547235A JP S5547235 A JPS5547235 A JP S5547235A JP 11888878 A JP11888878 A JP 11888878A JP 11888878 A JP11888878 A JP 11888878A JP S5547235 A JPS5547235 A JP S5547235A
Authority
JP
Japan
Prior art keywords
refractive index
sio2
amt
additive
burner
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
JP11888878A
Other languages
Japanese (ja)
Inventor
Koji Okamura
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 JP11888878A priority Critical patent/JPS5547235A/en
Publication of JPS5547235A publication Critical patent/JPS5547235A/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
    • C03B37/01807—Reactant delivery systems, e.g. reactant deposition burners

Landscapes

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

Abstract

PURPOSE:To produce the title fiber with little transmission loss by forming parts of the inner wall of a quartz reaction tube for clad and core with three components, SiO2, a refractive index increasing additive and a refractive index reducing additive to prevent impurities from mixing into the fiber. CONSTITUTION:Feed valves 12, 14, 16 of Ar pipings leading to evaporators 11, 13, 15 are opened to support SiCl4, a refractive index increasing additive and a refractive index reducing additive on Ar, and feed valve 17 of O2 piping is simultaneously opened. The materials are fed into quartz glass reaction tube 18 and oxidized by heating with burner 19 to deposit a glass layer made of SiO2 contg. a necessary amt. of the additives in an amt. required to form a clad layer. Next the flow rates of the three components are changed to add the additives to SiO2 so that a refractive index vlaue needed for formation of a core part is obtd., and a glass layer made of this SiO2 is deposited in an amt. required to form the core part. Valves 12, 14, 16, 17 are then closed, and burner 19 and tube 18 are shifted to made the layers solid. The resulting base material is spun.
JP11888878A 1978-09-26 1978-09-26 Production of glass fiber for light transmission Pending JPS5547235A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11888878A JPS5547235A (en) 1978-09-26 1978-09-26 Production of glass fiber for light transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11888878A JPS5547235A (en) 1978-09-26 1978-09-26 Production of glass fiber for light transmission

Publications (1)

Publication Number Publication Date
JPS5547235A true JPS5547235A (en) 1980-04-03

Family

ID=14747619

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11888878A Pending JPS5547235A (en) 1978-09-26 1978-09-26 Production of glass fiber for light transmission

Country Status (1)

Country Link
JP (1) JPS5547235A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56148417U (en) * 1980-04-08 1981-11-07

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52138945A (en) * 1976-05-15 1977-11-19 Sumitomo Electric Ind Ltd Production of optical-fibre
JPS5310443A (en) * 1976-07-16 1978-01-30 Nippon Telegr & Teleph Corp <Ntt> Preparation of optical transmission fiber
JPS5357047A (en) * 1976-11-01 1978-05-24 Fujitsu Ltd Preparatoin of light transmitting wire

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52138945A (en) * 1976-05-15 1977-11-19 Sumitomo Electric Ind Ltd Production of optical-fibre
JPS5310443A (en) * 1976-07-16 1978-01-30 Nippon Telegr & Teleph Corp <Ntt> Preparation of optical transmission fiber
JPS5357047A (en) * 1976-11-01 1978-05-24 Fujitsu Ltd Preparatoin of light transmitting wire

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56148417U (en) * 1980-04-08 1981-11-07

Similar Documents

Publication Publication Date Title
US4224046A (en) Method for manufacturing an optical fiber preform
GB1322993A (en) Method of producing optical waveguides
CA1154579A (en) Lightguide preform fabrication
US4437727A (en) Quartz glass envelope tube
JPS5547235A (en) Production of glass fiber for light transmission
GB2071351A (en) Manufacture of monomode fibers
JPS5619008A (en) Optical fiber and its manufacture
JPS5567536A (en) Production of glass fiber for light transmission
JPS55158144A (en) Manufacture of optical fiber base material
JPS54142317A (en) Production of optical fibers
JPS5820744A (en) Preparation of parent material for optical fiber
JPS6472934A (en) Production of base material for distribution-shift optical fiber
JPS5614432A (en) Manufacture of optical fiber
JPS55126542A (en) Melting crucible for glass for optical transmission line
JPS557538A (en) Production of soot-form glass rod
JPS57209841A (en) Burner for manufacturing optical fiber preform
JPS54138630A (en) Material for optical fiber and its production
JPS57170830A (en) Manufacture of optical fiber containing ellipsoidal core
JPS61183140A (en) Production of base material for optical fiber
JPS55144432A (en) Producing preform for optical fiber
JPS5727936A (en) Manufacture of base material for optical fiber
JPS54156827A (en) Method of making glass fiber for light transmission
JPS55162438A (en) Production of optical transmission line
FR2328670A1 (en) Optical fibre blanks made by chemical vapour deposition - using temp. controlled saturators to obtain required amt. of vapours
JPS569236A (en) Manufacture of optical fiber