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GB2002341B - Optical fibres and glasses - Google Patents

Optical fibres and glasses

Info

Publication number
GB2002341B
GB2002341B GB7828148A GB7828148A GB2002341B GB 2002341 B GB2002341 B GB 2002341B GB 7828148 A GB7828148 A GB 7828148A GB 7828148 A GB7828148 A GB 7828148A GB 2002341 B GB2002341 B GB 2002341B
Authority
GB
United Kingdom
Prior art keywords
glasses
optical fibres
fibres
optical
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.)
Expired
Application number
GB7828148A
Other versions
GB2002341A (en
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.)
Post Office
Original Assignee
Post Office
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 Post Office filed Critical Post Office
Priority to GB7828148A priority Critical patent/GB2002341B/en
Publication of GB2002341A publication Critical patent/GB2002341A/en
Application granted granted Critical
Publication of GB2002341B publication Critical patent/GB2002341B/en
Expired 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
    • C03C13/045—Silica-containing oxide glass compositions
    • C03C13/046—Multicomponent 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
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
    • 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
    • G02B6/028—Optical fibres with cladding with or without a coating with core or cladding having graded refractive index
    • G02B6/0281—Graded index region forming part of the central core segment, e.g. alpha profile, triangular, trapezoidal core

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Glass Compositions (AREA)
GB7828148A 1977-06-28 1978-06-28 Optical fibres and glasses Expired GB2002341B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7828148A GB2002341B (en) 1977-06-28 1978-06-28 Optical fibres and glasses

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2692477 1977-06-28
GB7828148A GB2002341B (en) 1977-06-28 1978-06-28 Optical fibres and glasses

Publications (2)

Publication Number Publication Date
GB2002341A GB2002341A (en) 1979-02-21
GB2002341B true GB2002341B (en) 1982-01-13

Family

ID=26258509

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7828148A Expired GB2002341B (en) 1977-06-28 1978-06-28 Optical fibres and glasses

Country Status (1)

Country Link
GB (1) GB2002341B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018110B1 (en) * 1979-04-04 1985-10-09 The Post Office Optical fibre core glass, optical fibres containing such glass and process for the manufacture of such glass
ATE7381T1 (en) * 1979-04-10 1984-05-15 The Post Office GRADIENT INDEX OPTIC FIBER.
NL8103089A (en) * 1981-06-26 1983-01-17 Philips Nv OPTICAL FIBER OF THE GRADED INDEX TYPE AND METHOD FOR THE MANUFACTURE THEREOF
DE10245880B4 (en) * 2002-09-30 2004-08-05 Schott Glas White glasses / borosilicate glasses with a special UV edge

Also Published As

Publication number Publication date
GB2002341A (en) 1979-02-21

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19950628