GB1487371A - Optical fibre manufacture - Google Patents

Optical fibre manufacture

Info

Publication number
GB1487371A
GB1487371A GB21488/74A GB2148874A GB1487371A GB 1487371 A GB1487371 A GB 1487371A GB 21488/74 A GB21488/74 A GB 21488/74A GB 2148874 A GB2148874 A GB 2148874A GB 1487371 A GB1487371 A GB 1487371A
Authority
GB
United Kingdom
Prior art keywords
glass tube
optical fibre
blank
fibre
fibre manufacture
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
GB21488/74A
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 GB21488/74A priority Critical patent/GB1487371A/en
Priority to ZA00752407A priority patent/ZA752407B/en
Priority to AU80781/75A priority patent/AU494245B2/en
Priority to NL7505282A priority patent/NL7505282A/en
Priority to IT23246/75A priority patent/IT1060724B/en
Priority to DE19752521270 priority patent/DE2521270A1/en
Priority to CH610275A priority patent/CH618409A5/en
Priority to ES437631A priority patent/ES437631A1/en
Priority to FR7515170A priority patent/FR2271588B1/fr
Publication of GB1487371A publication Critical patent/GB1487371A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C03B37/012—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
    • 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
    • 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
    • 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)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Optics & Photonics (AREA)
  • Physics & Mathematics (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Glass Compositions (AREA)

Abstract

Novel dopants (dopes), namely oxides of the elements gallium, indium, arsenic and antimony, are used in a process known per se for the production of a blank for optical fibres. The inner wall of a glass tube (11) is coated with a layer (10) which, after the glass tube has been collapsed to give a blank and after the latter has been drawn to form an optical fibre, forms the fibre core. This has a higher refractive index than the fibre cladding layer formed from the glass tube. <IMAGE>
GB21488/74A 1974-05-15 1974-05-15 Optical fibre manufacture Expired GB1487371A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
GB21488/74A GB1487371A (en) 1974-05-15 1974-05-15 Optical fibre manufacture
ZA00752407A ZA752407B (en) 1974-05-15 1975-04-16 Improvements in or relating to optical fibre manufacture
AU80781/75A AU494245B2 (en) 1974-05-15 1975-05-02 Improvements in or relating to optical fibre manufacture
NL7505282A NL7505282A (en) 1974-05-15 1975-05-06 PROCESS FOR THE MANUFACTURE OF AN OPTICAL FIBER AND AN OPTICAL FIBER FORM.
IT23246/75A IT1060724B (en) 1974-05-15 1975-05-13 IMPROVEMENT IN THE OPTICAL FIBER MANUFACTURE
DE19752521270 DE2521270A1 (en) 1974-05-15 1975-05-13 OPTICAL CONDUCTOR AND PROCEDURE FOR ITS MANUFACTURING
CH610275A CH618409A5 (en) 1974-05-15 1975-05-13 Process for the production of a blank for optical fibres
ES437631A ES437631A1 (en) 1974-05-15 1975-05-13 Optical fibre manufacture
FR7515170A FR2271588B1 (en) 1974-05-15 1975-05-15

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB21488/74A GB1487371A (en) 1974-05-15 1974-05-15 Optical fibre manufacture

Publications (1)

Publication Number Publication Date
GB1487371A true GB1487371A (en) 1977-09-28

Family

ID=10163791

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21488/74A Expired GB1487371A (en) 1974-05-15 1974-05-15 Optical fibre manufacture

Country Status (8)

Country Link
CH (1) CH618409A5 (en)
DE (1) DE2521270A1 (en)
ES (1) ES437631A1 (en)
FR (1) FR2271588B1 (en)
GB (1) GB1487371A (en)
IT (1) IT1060724B (en)
NL (1) NL7505282A (en)
ZA (1) ZA752407B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1106710A (en) * 1977-06-22 1981-08-11 Michael G. Blankenship Method of making optical devices
DE3031160A1 (en) * 1980-08-18 1982-04-01 Siemens AG, 1000 Berlin und 8000 München Cleaning of glass surfaces by etching with gas - esp. where mixt. of oxygen and sulphur hexa:fluoride is used to clean bore of quartz tube used to make blank for mfg. optical fibres

Also Published As

Publication number Publication date
NL7505282A (en) 1975-11-18
IT1060724B (en) 1982-08-20
DE2521270A1 (en) 1975-11-27
ES437631A1 (en) 1977-05-16
ZA752407B (en) 1976-03-31
CH618409A5 (en) 1980-07-31
FR2271588A1 (en) 1975-12-12
AU8078175A (en) 1976-11-04
FR2271588B1 (en) 1981-09-25

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930506