GB1427327A - Glass optical fibres - Google Patents

Glass optical fibres

Info

Publication number
GB1427327A
GB1427327A GB2677072A GB2677072A GB1427327A GB 1427327 A GB1427327 A GB 1427327A GB 2677072 A GB2677072 A GB 2677072A GB 2677072 A GB2677072 A GB 2677072A GB 1427327 A GB1427327 A GB 1427327A
Authority
GB
United Kingdom
Prior art keywords
layer
glass
deposited
reaction
dopant
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
GB2677072A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB2677072A priority Critical patent/GB1427327A/en
Priority to CA172,817A priority patent/CA1054795A/en
Priority to AU56577/73A priority patent/AU475394B2/en
Priority to DE2328930A priority patent/DE2328930C2/en
Priority to DE2366295A priority patent/DE2366295C2/en
Priority to NL7307907A priority patent/NL7307907A/xx
Priority to ES415658A priority patent/ES415658A1/en
Priority to CH823273A priority patent/CH586165A5/xx
Priority to JP6459573A priority patent/JPS539740B2/ja
Priority to IT25115/73A priority patent/IT988974B/en
Priority to GB3883274A priority patent/GB1475499A/en
Priority to GB3883174A priority patent/GB1475498A/en
Priority to GB3944473A priority patent/GB1475496A/en
Priority to GB3883074A priority patent/GB1475497A/en
Publication of GB1427327A publication Critical patent/GB1427327A/en
Priority to CA314,701A priority patent/CA1066570A/en
Priority to JP4851479A priority patent/JPS54151633A/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
    • G02B6/44—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
    • G02B6/44382—Means specially adapted for strengthening or protecting the cables the means comprising hydrogen absorbing materials
    • 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
    • C03B37/012—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
    • C03B37/01853—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
    • C03B37/01861—Means for changing or stabilising the diameter or form of tubes or rods
    • 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
    • C03B37/01861—Means for changing or stabilising the diameter or form of tubes or rods
    • C03B37/01869—Collapsing
    • 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
    • C03B37/02754—Solid fibres drawn from hollow preforms
    • 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
    • C03B2201/20—Doped silica-based glasses doped with non-metals other than boron or fluorine
    • C03B2201/28—Doped silica-based glasses doped with non-metals other than boron or fluorine doped with phosphorus
    • 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
    • C03B2201/30—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi
    • 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
    • C03B2201/30—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi
    • C03B2201/31—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with germanium
    • 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
    • C03B2201/30—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi
    • C03B2201/32—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with aluminium
    • 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
    • C03B2201/30—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi
    • C03B2201/40—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with transition metals other than rare earth metals, e.g. Zr, Nb, Ta or Zn
    • 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
    • C03B2201/30—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi
    • C03B2201/40—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with transition metals other than rare earth metals, e.g. Zr, Nb, Ta or Zn
    • C03B2201/42—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with transition metals other than rare earth metals, e.g. Zr, Nb, Ta or Zn doped with titanium
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/12—Drawing solid optical fibre directly from a hollow preform
    • C03B2205/13—Drawing solid optical fibre directly from a hollow preform from a hollow glass tube containing glass-forming material in particulate form, e.g. to form the core by melting the powder during drawing
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/12—Drawing solid optical fibre directly from a hollow preform
    • C03B2205/16—Drawing solid optical fibre directly from a hollow preform the drawn fibre consisting of circularly symmetric core and clad

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)

Abstract

1427327 Glass fibres for optical waveguides STANDARD TELEPHONES & CABLES Ltd 24 May 1973 [8 June 1972] 26770/72 Heading C1M In the manufacture of glass fibres for optical waveguides in which a glass layer is deposited upon the bore of a glass tube having a lower refractive index than that of the deposited layer, the layer is deposited by a chemical vapour reaction in the absence of hydrogen and hydrogen containing compounds, the resulting structure being heated, its bore collapsed and the structure drawn into glass fibre. The vapour reaction may be a thermally induced or an R.F. excited vapour reaction, particularly a halide oxidation reaction. Preferably the tube and layer are of silica, a dopant being codeposited into the silica in formation of the layer. The dopant is preferably titania. Reference has been directed by Comptroller to Specification 1,322,993.
GB2677072A 1972-06-08 1972-06-08 Glass optical fibres Expired GB1427327A (en)

Priority Applications (16)

Application Number Priority Date Filing Date Title
GB2677072A GB1427327A (en) 1972-06-08 1972-06-08 Glass optical fibres
CA172,817A CA1054795A (en) 1972-06-08 1973-05-31 Optical fibres
AU56577/73A AU475394B2 (en) 1972-06-08 1973-06-06 Optical fibres
DE2328930A DE2328930C2 (en) 1972-06-08 1973-06-06 Process for the production of fiber optic light guides
DE2366295A DE2366295C2 (en) 1972-06-08 1973-06-06 Fiber optic light guide
NL7307907A NL7307907A (en) 1972-06-08 1973-06-06
CH823273A CH586165A5 (en) 1972-06-08 1973-06-07
ES415658A ES415658A1 (en) 1972-06-08 1973-06-07 Glass optical fibres
JP6459573A JPS539740B2 (en) 1972-06-08 1973-06-08
IT25115/73A IT988974B (en) 1972-06-08 1973-06-12 IMPROVEMENT IN OPTICAL FIBERS
GB3883274A GB1475499A (en) 1972-06-08 1973-08-21 Optical fibres and optical fibre preforms
GB3883174A GB1475498A (en) 1972-06-08 1973-08-21 Optical fibres and optical fibre preform
GB3944473A GB1475496A (en) 1972-06-08 1973-08-21 Optical fibres and optical fibre preforms
GB3883074A GB1475497A (en) 1972-06-08 1973-08-21 Optical fibres and optical fibre preforms
CA314,701A CA1066570A (en) 1972-06-08 1978-10-30 Optical fibres
JP4851479A JPS54151633A (en) 1972-06-08 1979-04-19 Production of optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2677072A GB1427327A (en) 1972-06-08 1972-06-08 Glass optical fibres

Publications (1)

Publication Number Publication Date
GB1427327A true GB1427327A (en) 1976-03-10

Family

ID=10248922

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2677072A Expired GB1427327A (en) 1972-06-08 1972-06-08 Glass optical fibres

Country Status (9)

Country Link
JP (2) JPS539740B2 (en)
AU (1) AU475394B2 (en)
CA (1) CA1054795A (en)
CH (1) CH586165A5 (en)
DE (2) DE2328930C2 (en)
ES (1) ES415658A1 (en)
GB (1) GB1427327A (en)
IT (1) IT988974B (en)
NL (1) NL7307907A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2353495A1 (en) * 1976-06-01 1977-12-30 Int Standard Electric Corp OPTICAL FIBER MANUFACTURING METHOD
FR2369224A1 (en) * 1976-10-27 1978-05-26 Jenaer Glaswerk Schott & Gen VERY TRANSPARENT OPTICAL FIBERS IN THE FIELD OF INFRARED RADIATION
EP0005963A1 (en) * 1978-05-30 1979-12-12 International Standard Electric Corporation Method of plasma depositing a glass, a glass or silica optical fibre preform produced by this method, and method of making a silica optical fibre from this preform
DE3206177A1 (en) * 1982-02-20 1983-08-25 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Process for the production of a preform from which optical fibres can be drawn
DE3206176A1 (en) * 1982-02-20 1983-08-25 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Process for the production of a preform from which optical fibres can be drawn
GB2178737A (en) * 1985-06-25 1987-02-18 Furukawa Electric Co Ltd Fibre from tube

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4983453A (en) * 1972-12-14 1974-08-10
DE2463016C2 (en) * 1973-08-21 1982-05-06 International Standard Electric Corp., 10022 New York, N.Y. Method of manufacturing a fiber optic light guide
DE2402270C2 (en) * 1974-01-18 1983-05-26 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Process for the internal coating of a quartz tube and device for carrying out the process
CA1050833A (en) * 1974-02-22 1979-03-20 John B. Macchesney Optical fiber fabrication involving homogeneous reaction within a moving hot zone
US4217027A (en) 1974-02-22 1980-08-12 Bell Telephone Laboratories, Incorporated Optical fiber fabrication and resulting product
US4360250A (en) * 1974-05-31 1982-11-23 National Research Development Corp. Optical waveguides
DE2444100C3 (en) * 1974-09-14 1979-04-12 Philips Patentverwaltung Gmbh, 2000 Hamburg Process for the production of internally coated glass tubes for drawing optical fibers
JPS5174647A (en) * 1974-12-24 1976-06-28 Sumitomo Electric Industries HIKARIDENSOYOFUAIBAASOZAINOSEIZOHOHO
JPS51127743A (en) * 1975-04-30 1976-11-08 Nippon Telegr & Teleph Corp <Ntt> Optical fiber and its manufacturing method
JPS51138449A (en) * 1975-05-26 1976-11-30 Sumitomo Electric Ind Ltd Light transmission fiber and method for fabricating the same
CA1029993A (en) * 1975-09-11 1978-04-25 Frederick D. King Optical fibre transmission line
AU504423B2 (en) * 1975-11-14 1979-10-11 International Standard Electric Corporation Optical fibre
JPS5621777Y2 (en) * 1976-02-04 1981-05-22
GB1578826A (en) * 1976-03-25 1980-11-12 Western Electric Co Methods for fabricating optical fibre preforms
JPS5395649A (en) * 1977-02-02 1978-08-22 Hitachi Ltd Production of optical fiber
CA1080562A (en) * 1977-02-10 1980-07-01 Frederick D. King Method of and apparatus for manufacturing an optical fibre with plasma activated deposition in a tube
JPS5413350A (en) * 1977-07-02 1979-01-31 Fujikura Ltd Production of optical fiber
US4334903A (en) 1977-08-29 1982-06-15 Bell Telephone Laboratories, Incorporated Optical fiber fabrication
JPS5748214Y2 (en) * 1978-05-11 1982-10-22
CA1128739A (en) * 1978-06-08 1982-08-03 Corning Glass Works Method of making large diameter optical waveguide preforms
DE2929166A1 (en) * 1979-07-19 1981-01-29 Philips Patentverwaltung METHOD FOR THE PRODUCTION OF OPTICAL FIBERS
US4425146A (en) * 1979-12-17 1984-01-10 Nippon Telegraph & Telephone Public Corporation Method of making glass waveguide for optical circuit
US4331462A (en) 1980-04-25 1982-05-25 Bell Telephone Laboratories, Incorporated Optical fiber fabrication by a plasma generator
DE3203349A1 (en) * 1981-11-28 1983-06-09 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt METHOD AND DEVICE FOR PRODUCING AN OPTICAL GLASS FIBER WITH A LOW OH ION CONTENT
JPS5883573U (en) * 1981-12-03 1983-06-06 ダイハツディーゼル機器 Door closer stop device
DE3206144A1 (en) * 1982-02-20 1983-09-01 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt METHOD FOR PRODUCING A LIGHT WAVE GUIDE
DE3222189A1 (en) * 1982-06-12 1984-01-26 Hans Dr.Rer.Nat. 5370 Kall Beerwald Plasma process for coating the interior of tubes with dielectric material
DE3302128A1 (en) * 1983-01-22 1984-07-26 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Optical waveguide, and a process for the production thereof
FR2543455B1 (en) * 1983-03-30 1987-03-27 Air Liquide PROCESS FOR OPALIZING THE INTERIOR SURFACE OF OBJECTS OF LONG LENGTH IN RELATION TO THEIR SECTION
DE3830364C1 (en) * 1988-09-07 1990-01-18 Schott Glaswerke, 6500 Mainz, De
DE3936006A1 (en) * 1989-10-28 1991-05-02 Rheydt Kabelwerk Ag Low attenuation optical fibre preform - by internal tube coating, using low viscosity molten layer as first layer

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7202166U (en) * 1972-05-04 Heraeus Schott Quarzschmelze Gmbh Optical fiber
BE438752A (en) * 1939-04-22
DE1640559U (en) 1949-07-07 1952-07-10 Schloemann Ag TRACTOR FOR ROLLED MATERIAL WITH ROPE-CONTROLLED TOWING PUMP.
DE1085393B (en) * 1956-02-11 1960-07-14 Degussa Process for depositing metal layers in pipes made of ceramic material
US2967115A (en) * 1958-07-25 1961-01-03 Gen Electric Method of depositing silicon on a silica coated substrate
US3031338A (en) * 1959-04-03 1962-04-24 Alloyd Res Corp Metal deposition process and apparatus
US3127641A (en) * 1961-10-05 1964-04-07 Gen Electric Tungsten tube manufacture
NL128054C (en) * 1963-01-29
GB1145630A (en) * 1966-10-18 1969-03-19 Standard Telephones Cables Ltd Dielectric waveguide
FR2002589A1 (en) * 1968-02-26 1969-10-31 Corning Glass Works
US3644607A (en) * 1969-12-18 1972-02-22 Texas Instruments Inc Use of vapor phase deposition to make fused silica articles having titanium dioxide in the surface layer
US3711262A (en) * 1970-05-11 1973-01-16 Corning Glass Works Method of producing optical waveguide fibers
US3737293A (en) * 1972-01-03 1973-06-05 Corning Glass Works Method of forming an economic optical waveguide fiber

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2353495A1 (en) * 1976-06-01 1977-12-30 Int Standard Electric Corp OPTICAL FIBER MANUFACTURING METHOD
FR2369224A1 (en) * 1976-10-27 1978-05-26 Jenaer Glaswerk Schott & Gen VERY TRANSPARENT OPTICAL FIBERS IN THE FIELD OF INFRARED RADIATION
EP0005963A1 (en) * 1978-05-30 1979-12-12 International Standard Electric Corporation Method of plasma depositing a glass, a glass or silica optical fibre preform produced by this method, and method of making a silica optical fibre from this preform
DE3206177A1 (en) * 1982-02-20 1983-08-25 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Process for the production of a preform from which optical fibres can be drawn
DE3206176A1 (en) * 1982-02-20 1983-08-25 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Process for the production of a preform from which optical fibres can be drawn
GB2178737A (en) * 1985-06-25 1987-02-18 Furukawa Electric Co Ltd Fibre from tube
GB2178737B (en) * 1985-06-25 1989-03-15 Furukawa Electric Co Ltd Process for fabricating optical fibre

Also Published As

Publication number Publication date
AU475394B2 (en) 1976-08-19
DE2328930A1 (en) 1974-01-03
ES415658A1 (en) 1976-06-16
JPS4964447A (en) 1974-06-21
JPS54151633A (en) 1979-11-29
NL7307907A (en) 1973-12-11
DE2366295C2 (en) 1982-05-13
IT988974B (en) 1975-04-30
AU5657773A (en) 1974-12-12
CA1054795A (en) 1979-05-22
CH586165A5 (en) 1977-03-31
DE2328930C2 (en) 1982-05-13
JPS539740B2 (en) 1978-04-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19930523