FR2313686B1 - - Google Patents

Info

Publication number
FR2313686B1
FR2313686B1 FR7616989A FR7616989A FR2313686B1 FR 2313686 B1 FR2313686 B1 FR 2313686B1 FR 7616989 A FR7616989 A FR 7616989A FR 7616989 A FR7616989 A FR 7616989A FR 2313686 B1 FR2313686 B1 FR 2313686B1
Authority
FR
France
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.)
Expired
Application number
FR7616989A
Other languages
French (fr)
Other versions
FR2313686A1 (fr
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of FR2313686A1 publication Critical patent/FR2313686A1/fr
Application granted granted Critical
Publication of FR2313686B1 publication Critical patent/FR2313686B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G02B6/03616—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference
    • G02B6/03622—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 2 layers only
    • G02B6/03627—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 2 layers only arranged - +
    • 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
    • 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
    • C03C13/046—Multicomponent glass compositions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Glass Compositions (AREA)
  • Optical Communication System (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
FR7616989A 1975-06-06 1976-06-04 Fibre optique Granted FR2313686A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50067642A JPS51144242A (en) 1975-06-06 1975-06-06 Photo-transmission path

Publications (2)

Publication Number Publication Date
FR2313686A1 FR2313686A1 (fr) 1976-12-31
FR2313686B1 true FR2313686B1 (enrdf_load_stackoverflow) 1979-04-27

Family

ID=13350849

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7616989A Granted FR2313686A1 (fr) 1975-06-06 1976-06-04 Fibre optique

Country Status (3)

Country Link
JP (1) JPS51144242A (enrdf_load_stackoverflow)
DE (1) DE2625362A1 (enrdf_load_stackoverflow)
FR (1) FR2313686A1 (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5395649A (en) * 1977-02-02 1978-08-22 Hitachi Ltd Production of optical fiber
CA1124119A (en) * 1979-10-08 1982-05-25 Katsunari Okamoto Single mode optical fibers

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3785718A (en) * 1972-09-11 1974-01-15 Bell Telephone Labor Inc Low dispersion optical fiber

Also Published As

Publication number Publication date
DE2625362A1 (de) 1976-12-09
JPS51144242A (en) 1976-12-11
FR2313686A1 (fr) 1976-12-31

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Legal Events

Date Code Title Description
ST Notification of lapse