IT988974B - IMPROVEMENT IN OPTICAL FIBERS - Google Patents

IMPROVEMENT IN OPTICAL FIBERS

Info

Publication number
IT988974B
IT988974B IT25115/73A IT2511573A IT988974B IT 988974 B IT988974 B IT 988974B IT 25115/73 A IT25115/73 A IT 25115/73A IT 2511573 A IT2511573 A IT 2511573A IT 988974 B IT988974 B IT 988974B
Authority
IT
Italy
Prior art keywords
improvement
optical fibers
fibers
optical
Prior art date
Application number
IT25115/73A
Other languages
Italian (it)
Original Assignee
Int Standard Electric Corp
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 Int Standard Electric Corp filed Critical Int Standard Electric Corp
Application granted granted Critical
Publication of IT988974B publication Critical patent/IT988974B/en

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)
IT25115/73A 1972-06-08 1973-06-12 IMPROVEMENT IN OPTICAL FIBERS IT988974B (en)

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
IT988974B true IT988974B (en) 1975-04-30

Family

ID=10248922

Family Applications (1)

Application Number Title Priority Date Filing Date
IT25115/73A IT988974B (en) 1972-06-08 1973-06-12 IMPROVEMENT IN OPTICAL FIBERS

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)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4983453A (en) * 1972-12-14 1974-08-10
DE2434717C2 (en) * 1973-08-21 1989-05-18 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
US4217027A (en) 1974-02-22 1980-08-12 Bell Telephone Laboratories, Incorporated Optical fiber fabrication and resulting product
CA1050833A (en) * 1974-02-22 1979-03-20 John B. Macchesney Optical fiber fabrication involving homogeneous reaction within a moving hot zone
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
GB1559097A (en) * 1976-06-01 1980-01-16 Standard Telephones Cables Ltd Optical fibre manufacture
DE2648702C3 (en) * 1976-10-27 1980-08-21 Jenaer Glaswerk Schott & Gen., 6500 Mainz Infrared-permeable optical fiber made from oxygen-poor or oxygen-free GUs and process for their production
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
GB1603949A (en) * 1978-05-30 1981-12-02 Standard Telephones Cables Ltd Plasma deposit
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
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
DE3206144A1 (en) * 1982-02-20 1983-09-01 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt METHOD FOR PRODUCING A LIGHT WAVE GUIDE
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
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
CN1011227B (en) * 1985-06-25 1991-01-16 占河电气工业有限公司 Mfg. method for optics fibre
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

Also Published As

Publication number Publication date
NL7307907A (en) 1973-12-11
DE2328930C2 (en) 1982-05-13
AU475394B2 (en) 1976-08-19
DE2328930A1 (en) 1974-01-03
CH586165A5 (en) 1977-03-31
JPS539740B2 (en) 1978-04-07
CA1054795A (en) 1979-05-22
JPS54151633A (en) 1979-11-29
ES415658A1 (en) 1976-06-16
JPS4964447A (en) 1974-06-21
GB1427327A (en) 1976-03-10
DE2366295C2 (en) 1982-05-13
AU5657773A (en) 1974-12-12

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