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GB1456371A - Optical transmission fibre - Google Patents

Optical transmission fibre

Info

Publication number
GB1456371A
GB1456371A GB5460973A GB5460973A GB1456371A GB 1456371 A GB1456371 A GB 1456371A GB 5460973 A GB5460973 A GB 5460973A GB 5460973 A GB5460973 A GB 5460973A GB 1456371 A GB1456371 A GB 1456371A
Authority
GB
United Kingdom
Prior art keywords
fibre
fused silica
silica
doped
tube
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
GB5460973A
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
Priority claimed from JP11834672A external-priority patent/JPS5515682B2/ja
Priority claimed from JP11834572A external-priority patent/JPS4976537A/ja
Application filed by Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Publication of GB1456371A publication Critical patent/GB1456371A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00663—Production of light guides
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/20—Uniting glass pieces by fusing without substantial reshaping
    • C03B23/207—Uniting glass rods, glass tubes, or hollow glassware
    • 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
    • C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
    • C03B37/01211—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube
    • 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]
    • C03B37/01413—Reactant delivery systems
    • 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]
    • C03B37/01446—Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering
    • 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
    • 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
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
    • C03B37/027—Fibres composed of different sorts of glass, e.g. glass optical fibres
    • 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
    • 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
    • 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
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2201/00—Type of glass produced
    • C03B2201/02—Pure silica glass, e.g. pure fused quartz
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2201/00—Type of glass produced
    • C03B2201/06—Doped silica-based glasses
    • C03B2201/08—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2201/00—Type of glass produced
    • C03B2201/06—Doped silica-based glasses
    • C03B2201/08—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant
    • C03B2201/10—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant doped with boron
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2201/00—Type of glass produced
    • C03B2201/06—Doped silica-based glasses
    • C03B2201/08—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant
    • C03B2201/12—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant doped with fluorine
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00—Fibre product details, e.g. structure, shape
    • C03B2203/10—Internal structure or shape details
    • C03B2203/14—Non-solid, i.e. hollow products, e.g. hollow clad or with core-clad interface
    • C03B2203/16—Hollow core
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00—Fibre product details, e.g. structure, shape
    • C03B2203/10—Internal structure or shape details
    • C03B2203/22—Radial profile of refractive index, composition or softening point
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/80—Feeding the burner or the burner-heated deposition site
    • C03B2207/85—Feeding the burner or the burner-heated deposition site with vapour generated from liquid glass precursors, e.g. directly by heating the liquid
    • C03B2207/87—Controlling the temperature

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
  • Glass Compositions (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

1456371 Optical fibre SUMITOMO ELECTRIC INDUSTRIES Ltd 23 Nov 1973 [25 Nov 1972 (2)] 54609/73 Heading C1M An optical transmission fibre comprises a first portion 2 of fused silica doped with B 2 O 3 or F, and a second portion 1 of fused silica, which has a higher refractive index than said first portion. The fibre may have a solid core 1 of fused silica (fibre A), and optionally may have a further outer layer 4 of fused silica or water-repellant glass (fibre F). Alternatively, the fibre may be a hollow tube, having a central bore 3, fused silica layer 1 and doped silica layer 2 (fibre B). Such a hollow fibre may also have an outer layer 4 of fused silica or water-repellent glass (fibre G). The fibre may be formed by a rod-tube assembly method, or a rod or tube may be coated with fused silica or the doped fused silica, the rod and/or tube then being drawn to a fibre. Several variations on each process are disclosed. The coating is preferably by vapour deposition reaction. Silica alone may be deposited by the reaction: Silica doped with B 2 O 3 may be deposited by the simultaneous reactions: Silica doped with fluorine may be deposited by reaction of silicon halide with OF 2 or an O 2 /F 2 mixture. The applied coating may be heated to melt it, and bubbles eliminated by treatment under vacuum or supersonic vibrations.
GB5460973A 1972-11-25 1973-11-23 Optical transmission fibre Expired GB1456371A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP11834672A JPS5515682B2 (en) 1972-11-25 1972-11-25
JP11834572A JPS4976537A (en) 1972-11-25 1972-11-25
DE19732358880 DE2358880C3 (en) 1972-11-25 1973-11-27 Process for producing an optical fiber

Publications (1)

Publication Number Publication Date
GB1456371A true GB1456371A (en) 1976-11-24

Family

ID=27185640

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5460973A Expired GB1456371A (en) 1972-11-25 1973-11-23 Optical transmission fibre

Country Status (4)

Country Link
DE (1) DE2358880C3 (en)
FR (1) FR2208127B1 (en)
GB (1) GB1456371A (en)
NL (1) NL182310C (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2930398A1 (en) * 1978-07-31 1980-02-28 Corning Glass Works LARGE BANDWIDTH OPTICAL GRADIENT INDEX FIBER AND METHOD FOR THEIR PRODUCTION
FR2441594A1 (en) * 1978-11-20 1980-06-13 Mitsubishi Metal Corp PROCESS FOR THE PREPARATION OF OPTICAL WAVEGUARD MATERIAL
FR2473496A1 (en) * 1980-01-12 1981-07-17 Int Standard Electric Corp METHOD FOR CHEMICAL ATTACHING OF GLASS SURFACES, PARTICULARLY USED FOR THE MANUFACTURE OF OPTICAL WAVEGUIDES
GB2119958A (en) * 1982-05-10 1983-11-23 Rachem Corp Method of transmitting uv light
GB2221055A (en) * 1988-06-29 1990-01-24 Mitsubishi Cable Ind Ltd Radiation resistant multiple optical fibres
WO2002023236A3 (en) * 2000-09-14 2002-06-06 Univ Liege A monomode optical fibre
WO2013003003A1 (en) * 2011-06-30 2013-01-03 Corning Incorporated Methods for producing optical fiber preforms with low index trenches

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000416A (en) * 1975-07-11 1976-12-28 International Telephone And Telegraph Corporation Multi-core optical communications fiber
CH620181A5 (en) * 1975-08-16 1980-11-14 Heraeus Schott Quarzschmelze Process for the preparation of synthetic quartz glass, apparatus to carry out the process, and the use of the synthetic quartz glass
DE2536456C2 (en) * 1975-08-16 1981-02-05 Heraeus Quarzschmelze Gmbh, 6450 Hanau Semi-finished product for the production of optical fibers and process for the production of the semi-finished product
DE2538313C3 (en) * 1975-08-28 1981-11-05 Heraeus Quarzschmelze Gmbh, 6450 Hanau Process for the production of a preliminary product for the production of an optical, self-focusing light guide
AU504423B2 (en) * 1975-11-14 1979-10-11 International Standard Electric Corporation Optical fibre
GB1493660A (en) * 1975-12-16 1977-11-30 Standard Telephones Cables Ltd Optical waveguide power dividers
FR2428618A1 (en) * 1978-06-16 1980-01-11 Telecommunications Sa Optical fibre preform mfr. - by depositing glass soot on rod of same compsn. and diffusion of fluorine into the rod
FR2432478B1 (en) * 1978-07-31 1982-03-12 Quartz & Silice
GB2043619B (en) * 1979-03-07 1983-01-26 Standard Telephones Cables Ltd Optical fibre and optical fibre preform manufacture
DE2912960A1 (en) * 1979-03-31 1980-10-09 Licentia Gmbh METHOD FOR THE PRODUCTION OF OPTICAL FIBERS
DE3133013A1 (en) * 1980-08-26 1982-04-08 Western Electric Co., Inc., 10038 New York, N.Y. "METHOD FOR PRODUCING A LIGHT-FIBER FIBER BLANK"
FR2496086B1 (en) * 1980-12-16 1985-07-12 Quartz & Silice OPTICAL WAVEGUIDE WITH FLUORIC DOPED HEART
FR2519774A1 (en) * 1982-01-08 1983-07-18 Quartz & Silice OPTICAL FIBERS WITH HIGH BANDWIDTH
US4560247A (en) * 1983-07-01 1985-12-24 Quartz Et Silice Large bandwidth optical fibers
FR2624621B1 (en) * 1987-12-10 1992-07-31 Comp Generale Electricite METHOD FOR MANUFACTURING OPTICAL FIBER HAVING GOOD FATIGUE RESISTANCE
DE3803413C1 (en) * 1988-02-05 1989-03-30 Heraeus Quarzschmelze Gmbh, 6450 Hanau, De
EP0433240A3 (en) * 1989-12-13 1992-08-19 Centre Suisse D'electronique Et De Microtechnique S.A. Optical transducer cell of high efficiency with application to optical sensors
US5522003A (en) * 1993-03-02 1996-05-28 Ward; Robert M. Glass preform with deep radial gradient layer and method of manufacturing same

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2272342A (en) * 1934-08-27 1942-02-10 Corning Glass Works Method of making a transparent article of silica
DE745142C (en) * 1936-09-30 1944-02-28 Schlesische Spiegelglas Manufa Glass thread and process for its manufacture
DE973350C (en) * 1940-06-10 1960-01-28 Jenaer Glaswerk Schott & Gen Optical silicate glasses with a refractive index that is low in relation to the mean dispersion or the ª † value
US3320114A (en) * 1963-07-31 1967-05-16 Litton Prec Products Inc Method for lowering index of refraction of glass surfaces
US3535890A (en) * 1967-10-26 1970-10-27 Corning Glass Works Method of making fused silica
US3659915A (en) * 1970-05-11 1972-05-02 Corning Glass Works Fused silica optical waveguide
US3775075A (en) * 1972-01-03 1973-11-27 Corning Glass Works Method of forming optical waveguide fibers
NL7204501A (en) * 1972-04-05 1973-10-09

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2930398A1 (en) * 1978-07-31 1980-02-28 Corning Glass Works LARGE BANDWIDTH OPTICAL GRADIENT INDEX FIBER AND METHOD FOR THEIR PRODUCTION
FR2441594A1 (en) * 1978-11-20 1980-06-13 Mitsubishi Metal Corp PROCESS FOR THE PREPARATION OF OPTICAL WAVEGUARD MATERIAL
FR2473496A1 (en) * 1980-01-12 1981-07-17 Int Standard Electric Corp METHOD FOR CHEMICAL ATTACHING OF GLASS SURFACES, PARTICULARLY USED FOR THE MANUFACTURE OF OPTICAL WAVEGUIDES
US4415404A (en) 1980-01-12 1983-11-15 International Standard Electric Corporation Process of etching glass surfaces, particularly in the manufacture of optical waveguides
GB2119958A (en) * 1982-05-10 1983-11-23 Rachem Corp Method of transmitting uv light
GB2221055A (en) * 1988-06-29 1990-01-24 Mitsubishi Cable Ind Ltd Radiation resistant multiple optical fibres
GB2221055B (en) * 1988-06-29 1993-02-24 Mitsubishi Cable Ind Ltd Multiple fibres
WO2002023236A3 (en) * 2000-09-14 2002-06-06 Univ Liege A monomode optical fibre
WO2013003003A1 (en) * 2011-06-30 2013-01-03 Corning Incorporated Methods for producing optical fiber preforms with low index trenches
US9873629B2 (en) 2011-06-30 2018-01-23 Corning Incorporated Methods for producing optical fiber preforms with low index trenches

Also Published As

Publication number Publication date
NL182310C (en) 1988-02-16
NL7316041A (en) 1974-05-28
NL182310B (en) 1987-09-16
DE2358880A1 (en) 1975-08-14
DE2358880C3 (en) 1988-05-26
FR2208127A1 (en) 1974-06-21
DE2358880B2 (en) 1980-04-10
FR2208127B1 (en) 1976-11-19

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Legal Events

Date Code Title Description
48S Specification amended (sect. 8/1949)
49S Specification amended (sect. 9/1949)
PS Patent sealed
SP Amendment (slips) printed
PE20 Patent expired after termination of 20 years

Effective date: 19931122