JPS5711849A - Fiber for optical communication - Google Patents

Fiber for optical communication

Info

Publication number
JPS5711849A
JPS5711849A JP8560180A JP8560180A JPS5711849A JP S5711849 A JPS5711849 A JP S5711849A JP 8560180 A JP8560180 A JP 8560180A JP 8560180 A JP8560180 A JP 8560180A JP S5711849 A JPS5711849 A JP S5711849A
Authority
JP
Japan
Prior art keywords
geo2
sif4
fiber
refractive index
core part
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
JP8560180A
Other languages
Japanese (ja)
Other versions
JPS6022654B2 (en
Inventor
Yutaka Sasaki
Shinji Araki
Michio Akiyama
Takeru Fukuda
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.)
Fujikura Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Fujikura Ltd
Nippon Telegraph and Telephone Corp
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 Fujikura Ltd, Nippon Telegraph and Telephone Corp filed Critical Fujikura Ltd
Priority to JP55085601A priority Critical patent/JPS6022654B2/en
Publication of JPS5711849A publication Critical patent/JPS5711849A/en
Publication of JPS6022654B2 publication Critical patent/JPS6022654B2/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C13/00—Fibre or filament compositions
    • C03C13/04—Fibre optics, e.g. core and clad fibre compositions
    • C03C13/045—Silica-containing oxide glass compositions
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/06—Glass compositions containing silica with more than 90% silica by weight, e.g. quartz
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2201/00—Glass compositions
    • C03C2201/06—Doped silica-based glasses
    • C03C2201/08—Doped silica-based glasses containing boron or halide
    • C03C2201/14—Doped silica-based glasses containing boron or halide containing boron and fluorine
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2201/00—Glass compositions
    • C03C2201/06—Doped silica-based glasses
    • C03C2201/20—Doped silica-based glasses containing non-metals other than boron or halide
    • C03C2201/28—Doped silica-based glasses containing non-metals other than boron or halide containing phosphorus
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2201/00—Glass compositions
    • C03C2201/06—Doped silica-based glasses
    • C03C2201/30—Doped silica-based glasses containing metals
    • C03C2201/31—Doped silica-based glasses containing metals containing germanium
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2203/00—Production processes
    • C03C2203/40—Gas-phase processes
    • C03C2203/42—Gas-phase processes using silicon halides as starting materials
    • C03C2203/44—Gas-phase processes using silicon halides as starting materials chlorine containing
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2203/00—Production processes
    • C03C2203/40—Gas-phase processes
    • C03C2203/42—Gas-phase processes using silicon halides as starting materials
    • C03C2203/46—Gas-phase processes using silicon halides as starting materials fluorine containing
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
    • G02B6/03605—Highest refractive index not on central axis
    • G02B6/03611—Highest index adjacent to central axis region, e.g. annular core, coaxial ring, centreline depression affecting waveguiding

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Physics & Mathematics (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Glass Compositions (AREA)

Abstract

PURPOSE:When opticl fibers are produced through the MCVD process, the core part is made from P2O5-F-GeO2-SiO2 glass to reduce the dipping to level as low as possible and prevent the reduction in communication performance. CONSTITUTION:The glass compositin of the core part is made P2O5-F-GeO2-SiO2. As a F source, is used SiF4, CF4 or SF6. F is very volatile and stays in the collapse as SiF4. Further, F remarkably lowers the refractive index. On collapsing, both of F and GeO2 (increasing the refractive index) vaporize. As a results, these actions are compensated to lower the dip 10 in the refractive idex distribution as shown in the figure.
JP55085601A 1980-06-24 1980-06-24 Manufacturing method of optical communication fiber Expired JPS6022654B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55085601A JPS6022654B2 (en) 1980-06-24 1980-06-24 Manufacturing method of optical communication fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55085601A JPS6022654B2 (en) 1980-06-24 1980-06-24 Manufacturing method of optical communication fiber

Publications (2)

Publication Number Publication Date
JPS5711849A true JPS5711849A (en) 1982-01-21
JPS6022654B2 JPS6022654B2 (en) 1985-06-03

Family

ID=13863339

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55085601A Expired JPS6022654B2 (en) 1980-06-24 1980-06-24 Manufacturing method of optical communication fiber

Country Status (1)

Country Link
JP (1) JPS6022654B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60176944A (en) * 1984-02-23 1985-09-11 Sumitomo Electric Ind Ltd Fiber for optical transmission
JPS60176945A (en) * 1984-02-23 1985-09-11 Sumitomo Electric Ind Ltd Optical fiber
JPS60191025A (en) * 1983-11-25 1985-09-28 ピ−ピ−ジ−　インダストリ−ズ，インコ−ポレ−テツド Method and device for thermally liquefying powdery material
JPS61166503A (en) * 1985-01-11 1986-07-28 エヌ・ベー・フイリツプス・フルーイランペンフアブリケン Fluorine-doped optical fiber and manufacture thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60191025A (en) * 1983-11-25 1985-09-28 ピ−ピ−ジ−　インダストリ−ズ，インコ−ポレ−テツド Method and device for thermally liquefying powdery material
JPS6230131B2 (en) * 1983-11-25 1987-06-30 Ppg Industries Inc
JPS60176944A (en) * 1984-02-23 1985-09-11 Sumitomo Electric Ind Ltd Fiber for optical transmission
JPS60176945A (en) * 1984-02-23 1985-09-11 Sumitomo Electric Ind Ltd Optical fiber
JPS61166503A (en) * 1985-01-11 1986-07-28 エヌ・ベー・フイリツプス・フルーイランペンフアブリケン Fluorine-doped optical fiber and manufacture thereof

Also Published As

Publication number Publication date
JPS6022654B2 (en) 1985-06-03

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