GB8607122D0 - Preforming mould - Google Patents

Preforming mould

Info

Publication number
GB8607122D0
GB8607122D0 GB868607122A GB8607122A GB8607122D0 GB 8607122 D0 GB8607122 D0 GB 8607122D0 GB 868607122 A GB868607122 A GB 868607122A GB 8607122 A GB8607122 A GB 8607122A GB 8607122 D0 GB8607122 D0 GB 8607122D0
Authority
GB
United Kingdom
Prior art keywords
preforming mould
preforming
mould
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.)
Granted
Application number
GB868607122A
Other versions
GB2176472A (en
GB2176472B (en
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.)
Heraeus Quarzschmelze GmbH
Heraeus Schott Quarzschmelze GmbH
Original Assignee
Heraeus Quarzschmelze GmbH
Heraeus Schott Quarzschmelze GmbH
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 Heraeus Quarzschmelze GmbH, Heraeus Schott Quarzschmelze GmbH filed Critical Heraeus Quarzschmelze GmbH
Publication of GB8607122D0 publication Critical patent/GB8607122D0/en
Publication of GB2176472A publication Critical patent/GB2176472A/en
Application granted granted Critical
Publication of GB2176472B publication Critical patent/GB2176472B/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
    • C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
    • C03B37/01225—Means for changing or stabilising the shape, e.g. diameter, of tubes or rods in general, e.g. collapsing
    • C03B37/0124—Means for reducing the diameter of rods or tubes by drawing, e.g. for preform draw-down
    • C03B37/01245—Means for reducing the diameter of rods or tubes by drawing, e.g. for preform draw-down by drawing and 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]
    • C03B37/01446—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]
    • C03B37/01466—Means for changing or stabilising the diameter or form of tubes or rods
    • C03B37/01473—Collapsing
    • 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
GB08607122A 1985-06-13 1986-03-21 Method of producing a preforming mould for optical fibres Expired GB2176472B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853521119 DE3521119A1 (en) 1985-06-13 1985-06-13 METHOD FOR PRODUCING A PREFORM FOR OPTICAL FIBERS AND USE OF A QUARTZ GLASS OR TUBE. DOPED QUARTZ GLASS FOR PRODUCING SUCH A PREFORM

Publications (3)

Publication Number Publication Date
GB8607122D0 true GB8607122D0 (en) 1986-04-30
GB2176472A GB2176472A (en) 1986-12-31
GB2176472B GB2176472B (en) 1988-12-29

Family

ID=6273111

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08607122A Expired GB2176472B (en) 1985-06-13 1986-03-21 Method of producing a preforming mould for optical fibres

Country Status (4)

Country Link
JP (1) JPS61286242A (en)
DE (1) DE3521119A1 (en)
FR (1) FR2583408B1 (en)
GB (1) GB2176472B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113894627A (en) * 2021-10-15 2022-01-07 湖州东科电子石英股份有限公司 Machining method of conical protection cylinder
CN114044627A (en) * 2021-12-10 2022-02-15 中国电子科技集团公司第四十六研究所 Method for preventing core element volatilization of rare earth ion-doped optical fiber preform

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4848998A (en) * 1988-01-21 1989-07-18 Polaroid Corporation Selective volitization method for preparing fiber optics
DE4314638A1 (en) * 1993-05-04 1994-11-10 Rheydt Kabelwerk Ag Device and method for heating an elongated vitreous body
GB2291643B (en) * 1994-07-21 1998-01-28 Pirelli General Plc Optical fibre preforms
DE19513862C2 (en) * 1995-04-12 1997-12-18 Alcatel Kabel Ag Method and device for fire polishing an elongated glass body
US5609665A (en) * 1995-08-31 1997-03-11 Lucent Technologies Inc. Method of making optical fiber with low melting glass core
DE10041467C1 (en) * 2000-07-26 2002-02-21 Heraeus Quarzglas Process for vitrifying a porous soot body made of silicon dioxide used in the production of blanks for optical fibers comprises holding the soot body in a vertical position using a holding device, and continuously feeding to a heating zone
US6446468B1 (en) * 2000-08-01 2002-09-10 Fitel Usa Corp. Process for fabricating optical fiber involving overcladding during sintering
RU2302066C1 (en) * 2005-09-22 2007-06-27 Научный центр волоконной оптики при Институте общей физики им. А.М. Прохорова Российской академии наук Fiber optic conductor for optical intensification of radiation at wavelengths ranging between 1000 and 1700 nm, methods for its manufacture, and fiber laser
EP1942083A1 (en) * 2006-12-07 2008-07-09 Datwyler Fiber Optics S.A. Method and apparatus for fabricating a preform for an active optical fiber, active optical fiber and amplifier
WO2010029147A1 (en) * 2008-09-11 2010-03-18 Heraeus Quarzglas Gmbh & Co. Kg Method for producing a quartz glass member
DE102008059400A1 (en) 2008-11-27 2010-06-02 Heraeus Quarzglas Gmbh & Co. Kg Manufacturing quartz glass molding for production of optical fiber, coats deposited amorphous silica particles with gas-tight sealing layer and conditions them before thermal compression
EP2261182A1 (en) * 2009-05-21 2010-12-15 Silitec Fibers SA Method for fabricating a preform from glass particles
EP3702333A1 (en) 2019-03-01 2020-09-02 Heraeus Quarzglas GmbH & Co. KG Method and device for producing a glass component

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3455667A (en) * 1966-05-06 1969-07-15 American Optical Corp Method of making optical couplers
US3656925A (en) * 1970-05-28 1972-04-18 Owens Illinois Inc Method and apparatus for joining two glass parts or articles
DE2415052C3 (en) * 1974-03-28 1979-04-19 Siemens Ag, 1000 Berlin Und 8000 Muenchen Method of manufacturing an optical fiber
JPS54112218A (en) * 1978-02-20 1979-09-03 Nippon Telegr & Teleph Corp <Ntt> Production of optical fiber
US4263031A (en) * 1978-06-12 1981-04-21 Corning Glass Works Method of producing glass optical filaments
GB2033372B (en) * 1978-09-28 1983-01-19 Sumitomo Electric Industries Method of producing an optical waveguide
JPS5852935B2 (en) * 1978-11-20 1983-11-26 三菱マテリアル株式会社 Manufacturing method for optical transmission materials
DE2938218C2 (en) * 1979-09-21 1986-10-09 Corning Glass Works, Corning, N.Y. Method of making a glass object
GB2084988B (en) * 1980-10-02 1984-06-06 Post Office Methods of etching materials containing silicon
DE3230199A1 (en) * 1982-08-13 1984-02-16 Siemens AG, 1000 Berlin und 8000 München METHOD FOR PRODUCING A FIBERGLASS WITH A RADIAL CRUSH PROFILE
JPS5969438A (en) * 1982-10-15 1984-04-19 Hitachi Ltd Manufacture of base material for optical fiber
DE3240355C1 (en) * 1982-11-02 1983-11-17 Heraeus Quarzschmelze Gmbh, 6450 Hanau Process for the production of an elongated glass body with an inhomogeneous refractive index distribution
DE3315156A1 (en) * 1983-04-27 1984-10-31 Standard Elektrik Lorenz Ag, 7000 Stuttgart Process for the production of optical waveguides
JPS59202401A (en) * 1983-05-02 1984-11-16 Sumitomo Electric Ind Ltd Optical fiber and its manufacture
CA1236695A (en) * 1984-09-17 1988-05-17 Koichi Abe Optical fiber
CA1260684A (en) * 1985-03-19 1989-09-26 Koichi Abe Optical waveguide manufacture

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113894627A (en) * 2021-10-15 2022-01-07 湖州东科电子石英股份有限公司 Machining method of conical protection cylinder
CN113894627B (en) * 2021-10-15 2023-09-01 湖州东科电子石英股份有限公司 Processing method of conical protection cylinder
CN114044627A (en) * 2021-12-10 2022-02-15 中国电子科技集团公司第四十六研究所 Method for preventing core element volatilization of rare earth ion-doped optical fiber preform

Also Published As

Publication number Publication date
FR2583408B1 (en) 1992-08-28
DE3521119C2 (en) 1987-11-05
DE3521119A1 (en) 1986-12-18
JPS61286242A (en) 1986-12-16
JPH0526730B2 (en) 1993-04-19
GB2176472A (en) 1986-12-31
GB2176472B (en) 1988-12-29
FR2583408A1 (en) 1986-12-19

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19970321