GB1459199A - Optical fibres and processes for their production- - Google Patents

Optical fibres and processes for their production-

Info

Publication number
GB1459199A
GB1459199A GB5788773A GB5788773A GB1459199A GB 1459199 A GB1459199 A GB 1459199A GB 5788773 A GB5788773 A GB 5788773A GB 5788773 A GB5788773 A GB 5788773A GB 1459199 A GB1459199 A GB 1459199A
Authority
GB
United Kingdom
Prior art keywords
rod
polishing
layer
fibre
etch
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
GB5788773A
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 GB1459199A publication Critical patent/GB1459199A/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
    • G02B6/028—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
    • 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
    • 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
    • C03B37/02—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
    • 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
    • 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
    • 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

Landscapes

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

Abstract

1459199 Light guides SUMITOMO ELECTRIC INDUSTRIES Ltd 13 Dec 1973 [14 Dec 1972] 57887/73 Heading C1M A method of making an optical fibre of either the self-focusing or of the cladding type comprises vapour-depositing a layer of silica containing a dopant, e.g. TiO 2 , on to the inside or outside surface of a tube or rod of fused silica, and reducing the rod, e.g. by spinning. If the deposition is on the outside surface, the rod may itself be doped, the contiguous portions of the rod and the layer having the same refractive index, and in a modification of this method, the rod is removed and the tubular layer is spun to a solid fibre. The substrate is prepared for deposition by mechanical polishing and HF etch or flame polishing, the transparency of the fibre may be increased by annealing at 600- 1200‹ C. in an oxygen rich atmosphere and any loss in strength made up by an HF etch. In the alternative embodiment the tube removed from its former may be polished by a laser beam or by sapphire polishing and washing in HF solution or fire polishing.
GB5788773A 1972-12-14 1973-12-13 Optical fibres and processes for their production- Expired GB1459199A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12548472A JPS4983453A (en) 1972-12-14 1972-12-14

Publications (1)

Publication Number Publication Date
GB1459199A true GB1459199A (en) 1976-12-22

Family

ID=14911218

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5788773A Expired GB1459199A (en) 1972-12-14 1973-12-13 Optical fibres and processes for their production-

Country Status (7)

Country Link
JP (1) JPS4983453A (en)
DE (1) DE2362341B2 (en)
FR (1) FR2327557A1 (en)
GB (1) GB1459199A (en)
HK (1) HK12079A (en)
MY (1) MY7900188A (en)
NL (1) NL7316896A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4560247A (en) * 1983-07-01 1985-12-24 Quartz Et Silice Large bandwidth optical fibers
KR100521957B1 (en) * 2003-07-11 2005-10-14 엘에스전선 주식회사 Outside Vapor Deposition Apparatus For Manufacturing Optical Fiber Preform and Method For Manufacturing Optical Fiber Preform Using The Same

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
US4076378A (en) * 1976-03-08 1978-02-28 American Optical Corporation Tapered fiber optic array
JPS52121333A (en) * 1976-04-06 1977-10-12 Kuratomi Tatsuro Focusing type optical fiber
DE2642949C3 (en) * 1976-09-24 1980-11-20 Philips Patentverwaltung Gmbh, 2000 Hamburg Process for the production of internally coated glass tubes for drawing optical fibers
FR2446264A1 (en) * 1979-01-10 1980-08-08 Quartz & Silice PROCESS FOR PREPARING A PREFORM FOR AN OPTICAL WAVEGUIDE
US4314837A (en) * 1979-03-01 1982-02-09 Corning Glass Works Reactant delivery system method
DE2929166A1 (en) * 1979-07-19 1981-01-29 Philips Patentverwaltung METHOD FOR THE PRODUCTION OF OPTICAL FIBERS
DE4237921A1 (en) * 1992-10-23 1994-04-28 Flachglas Ag Method and device for modifying the surface activity of a silicate glass substrate

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE438752A (en) * 1939-04-22
FR1287540A (en) * 1961-02-02 1962-03-16 Saint Gobain Further training in the manufacture of silica glass or silicic glasses
US3287161A (en) * 1962-10-01 1966-11-22 Xerox Corp Method for forming a thin film resistor
GB1181046A (en) * 1967-10-18 1970-02-11 Nippon Sheet Glass Co Ltd Glass Fiber having Metallic Coating
GB1279464A (en) * 1968-10-03 1972-06-28 Nippon Selfoc Co Ltd Production of light conducting glass fibres
GB1281209A (en) * 1968-10-19 1972-07-12 Nippon Selfoc Co Ltd Production of light-conducting glass structures
GB1223805A (en) * 1969-05-29 1971-03-03 Standard Telephones Cables Ltd Glass tube manufacture
US3711262A (en) * 1970-05-11 1973-01-16 Corning Glass Works Method of producing optical waveguide fibers
CA951555A (en) * 1970-05-11 1974-07-23 Robert D. Maurer Glass optical waveguide
DE2039239B2 (en) * 1970-08-07 1971-12-30 Jenaer Glaswerk Schott & Gen LIGHT-GUIDING GLASS ELEMENT WITH A ZONE FROM HIGHER BREAKING THE GLASS, AN ADJUSTING LOW-BREAKING GLASS ZONE AND A TRANSITIONAL AREA, CREATED BY ION DIFFUSION, WITH CONTINUOUS REFRAINING INDEX GRADIENTS AND MANUFACTURING OF GRADIENTS
CA981536A (en) * 1971-03-12 1976-01-13 Owens-Corning Fiberglas Corporation Method and apparatus for processing glass to fibers
US3823995A (en) * 1972-03-30 1974-07-16 Corning Glass Works Method of forming light focusing fiber waveguide
US3868170A (en) * 1972-03-30 1975-02-25 Corning Glass Works Method of removing entrapped gas and/or residual water from glass
US3826560A (en) * 1972-03-30 1974-07-30 Corning Glass Works Method of forming a light focusing fiber waveguide
GB1427327A (en) * 1972-06-08 1976-03-10 Standard Telephones Cables Ltd Glass optical fibres

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4560247A (en) * 1983-07-01 1985-12-24 Quartz Et Silice Large bandwidth optical fibers
KR100521957B1 (en) * 2003-07-11 2005-10-14 엘에스전선 주식회사 Outside Vapor Deposition Apparatus For Manufacturing Optical Fiber Preform and Method For Manufacturing Optical Fiber Preform Using The Same

Also Published As

Publication number Publication date
NL7316896A (en) 1974-06-18
JPS4983453A (en) 1974-08-10
MY7900188A (en) 1979-12-31
DE2362341B2 (en) 1975-10-09
FR2327557B1 (en) 1978-03-24
HK12079A (en) 1979-03-23
DE2362341A1 (en) 1974-07-04
FR2327557A1 (en) 1977-05-06

Similar Documents

Publication Publication Date Title
GB1418112A (en) Optical waveguide fibres
SE7906403L (en) OPTICAL FIBER WITH INDEX GRADIENT AND PROCEDURE FOR MANUFACTURING THIS
SE7906402L (en) OPTICAL FIBER AND PROCEDURE FOR ITS MANUFACTURING
GB1427826A (en) Method of producing an optical transmission line
GB1496788A (en) Optical fibre manufacture
DK250782A (en) PROCEDURE FOR THE MANUFACTURING OF AN OPTICAL WAVER FIBER
GB1427327A (en) Glass optical fibres
GB1459199A (en) Optical fibres and processes for their production-
GB1434977A (en) Method of manufacturing an optical waveguide
GB1456371A (en) Optical transmission fibre
AU3355084A (en) Laminated optical fibre
ATE37100T1 (en) MONOMODE OPTICAL FIBER AND METHOD OF MANUFACTURE.
GB1440178A (en) Methods for the manufacturing of preforms for the drawing of glass fibres
ES496375A0 (en) AN IMPROVED METHOD FOR THE MANUFACTURE OF A FIBER OPTIC PREFORM
ES8201322A1 (en) Single mode fibre and method of manufacture
GB1403450A (en) Method of manufacturing an optical fibre light waveguide
FR2428618A1 (en) Optical fibre preform mfr. - by depositing glass soot on rod of same compsn. and diffusion of fluorine into the rod
AU551606B2 (en) Metal fluoride glasses for optical fibres
GB1322992A (en) Optical waveguides
CA2080527A1 (en) Method of fabricating monomode active strip optical waveguides for optical telecommunications
JPS56121002A (en) Optical fiber for light transmission and its manufacture
GB1406870A (en) Method of forming an economic optical waveguide fibre
GB1531623A (en) Optical fibres
JPS5512947A (en) Light communication fiber
GB1435523A (en) Glass fibre optical waveguide

Legal Events

Date Code Title Description
429A Application made for amendment of specification (sect. 29/1949)
414F Notice of opposition given (sect. 14/1949)
429C Application to amend the specification withdrawn (sect. 29/1949)
414A Case decided by the comptroller ** specification amended (sect. 14/1949)
SP Amendment (slips) printed
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19931212