GB1477171A - Optical transmission fibre - Google Patents

Optical transmission fibre

Info

Publication number
GB1477171A
GB1477171A GB2617374A GB2617374A GB1477171A GB 1477171 A GB1477171 A GB 1477171A GB 2617374 A GB2617374 A GB 2617374A GB 2617374 A GB2617374 A GB 2617374A GB 1477171 A GB1477171 A GB 1477171A
Authority
GB
United Kingdom
Prior art keywords
fibre
plastics
glass
liquid
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
GB2617374A
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Publication of GB1477171A publication Critical patent/GB1477171A/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
    • G02B6/02033—Core or cladding made from organic material, e.g. polymeric material
    • 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
    • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10—Coating
    • C03C25/104—Coating to obtain optical fibres
    • C03C25/106—Single coatings
    • 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
    • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10—Coating
    • C03C25/104—Coating to obtain optical fibres
    • C03C25/1065—Multiple coatings
    • 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
    • G02B6/02395—Glass optical fibre with a protective coating, e.g. two layer polymer coating deposited directly on a silica cladding surface during fibre manufacture
    • 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
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4429—Means specially adapted for strengthening or protecting the cables
    • G02B6/443—Protective covering
    • 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 - +
    • 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
    • G02B6/03638—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 3 layers only
    • 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
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4429—Means specially adapted for strengthening or protecting the cables
    • G02B6/4434—Central member to take up tensile loads

Landscapes

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

Abstract

1477171 Light guides SUMITOMO ELECTRIC INDUSTRIES Ltd 12 June 1974 [13 June 1973] 26173/74 Heading G2J An optical transmission fibre comprises an optical fibre which is already suitable for optical communication and which is already capable of transmitting light over long lengths, e.g. having core 1 and cladding 2, surrounded by at least one layer 6 of a composition comprising a thermoplastic resin having a functional group in the molecule. Layer 6 protects and reinforces the fibre. The preferred thermoplastic resin is a polyamide but other examples are a polyester; an ethylenevinyl acetate copolymer; an ethyene-acrylic acid copolymer and an ionomer resin. The composition may be extruded on to the optical fibre or may be applied in a dispersion or solution. In a review of the known art the following types of fibre are described with reference to Fig. 1:- (a) "Ordinary" fibre; (b) Clad multi-mode fibre; (c) Clad Single-mode fibre; (d) O-guide type fibre; (e) Self-focusing fibre and (f) Single material type fibre. For (b) and (c), core 1 and cladding 2 may both be glass; both plastics; 1 of plastics and 2 of glass; 1 1 of glass and 2 of plastics; 1 of liquid and 2 of glass or 1 of liquid and 2 of plastics. For (d) 3, 4 and 5 may be glass, plastics or liquid. For (e) plastics or quartz glass are used.
GB2617374A 1973-06-13 1974-06-12 Optical transmission fibre Expired GB1477171A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48067287A JPS5017649A (en) 1973-06-13 1973-06-13

Publications (1)

Publication Number Publication Date
GB1477171A true GB1477171A (en) 1977-06-22

Family

ID=13340600

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2617374A Expired GB1477171A (en) 1973-06-13 1974-06-12 Optical transmission fibre

Country Status (6)

Country Link
JP (1) JPS5017649A (en)
FR (1) FR2233637B1 (en)
GB (1) GB1477171A (en)
HK (1) HK12279A (en)
MY (1) MY7900189A (en)
NL (1) NL7407987A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0926524A1 (en) * 1997-12-10 1999-06-30 Sumitomo Electric Industries, Ltd. Optical-fiber cable and manufacturing method thereof
WO2002006176A1 (en) * 2000-07-13 2002-01-24 Corning Incorporated Application of silane-enhanced adhesion promoters for optical fibers and fiber ribbons
US6536700B2 (en) 2000-07-11 2003-03-25 Corning Incorporated Variable tension fiber winding

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000936A (en) * 1974-07-30 1977-01-04 Bell Telephone Laboratories, Incorporated Optical fiber jacket designs for minimum distortion loss
GB1494963A (en) * 1975-03-18 1977-12-14 Telephone Cables Ltd Optical fibre waveguides and their manufacture
JPS5838366B2 (en) * 1975-04-30 1983-08-23 株式会社フジクラ Hikari Tsushinyou Glass Fiber
GB1570624A (en) * 1975-12-11 1980-07-02 Western Electric Co Optical fibre transmission arrangements
USRE33677E (en) * 1976-05-26 1991-08-27 Coating of fiber lightguides with UV cured polymerization
US4099837A (en) * 1976-05-26 1978-07-11 Bell Telephone Laboratories, Incorporated Coating of fiber lightguides with UV cured polymerization products
JPS539130A (en) * 1976-07-13 1978-01-27 Fujitsu Ltd Protection film forming method of optical fibers
JPS5314545U (en) * 1976-07-20 1978-02-07
DK138437B (en) * 1976-11-09 1978-09-04 Nordiske Kabel Traad Light conducting element for use in installation in optical transmission means.
DK138564B (en) * 1976-11-09 1978-09-25 Nordiske Kabel Traad Method of manufacturing a light-conducting element for placement in a tubular casing.
DE2835517C3 (en) * 1977-08-17 1981-05-27 Nippon Telegraph & Telephone Public Corp., Tokyo Process for the continuous production of plastic-coated optical glass fibers
GB2026716B (en) * 1978-05-25 1982-08-04 Nippon Telegraph & Telephone Glass optical fibre coated with organopolysiloxane layers
JPS5598706A (en) * 1979-01-23 1980-07-28 Nippon Telegr & Teleph Corp <Ntt> Glass fiber for optical transmission and its production
JPS55117103A (en) * 1980-02-15 1980-09-09 Sumitomo Electric Ind Ltd Fiber for optical transmission
JPS587362Y2 (en) * 1980-10-24 1983-02-09 住友電気工業株式会社 plastic fiber
JPS6146514U (en) * 1984-08-31 1986-03-28 大阪瓦斯株式会社 fiber optic cable

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4884648A (en) * 1972-02-08 1973-11-10

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0926524A1 (en) * 1997-12-10 1999-06-30 Sumitomo Electric Industries, Ltd. Optical-fiber cable and manufacturing method thereof
US6536700B2 (en) 2000-07-11 2003-03-25 Corning Incorporated Variable tension fiber winding
WO2002006176A1 (en) * 2000-07-13 2002-01-24 Corning Incorporated Application of silane-enhanced adhesion promoters for optical fibers and fiber ribbons
US6577802B1 (en) 2000-07-13 2003-06-10 Corning Incorporated Application of silane-enhanced adhesion promoters for optical fibers and fiber ribbons

Also Published As

Publication number Publication date
HK12279A (en) 1979-03-23
FR2233637B1 (en) 1976-06-25
MY7900189A (en) 1979-12-31
NL7407987A (en) 1975-12-16
FR2233637A1 (en) 1975-01-10
JPS5017649A (en) 1975-02-25

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19940611