FR2437381A1 - Procede pour fabriquer des fibres optiques presentant un affaiblissement reduit et une grande ouverture numerique - Google Patents

Procede pour fabriquer des fibres optiques presentant un affaiblissement reduit et une grande ouverture numerique

Info

Publication number
FR2437381A1
FR2437381A1 FR7922766A FR7922766A FR2437381A1 FR 2437381 A1 FR2437381 A1 FR 2437381A1 FR 7922766 A FR7922766 A FR 7922766A FR 7922766 A FR7922766 A FR 7922766A FR 2437381 A1 FR2437381 A1 FR 2437381A1
Authority
FR
France
Prior art keywords
optical fibers
manufacturing optical
large digital
opening
digital opening
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.)
Withdrawn
Application number
FR7922766A
Other languages
English (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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of FR2437381A1 publication Critical patent/FR2437381A1/fr
Withdrawn legal-status Critical Current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
    • C03B37/01265—Manufacture of preforms for drawing fibres or filaments starting entirely or partially from molten glass, e.g. by dipping a preform in a melt
    • C03B37/01274—Manufacture of preforms for drawing fibres or filaments starting entirely or partially from molten glass, e.g. by dipping a preform in a melt by extrusion or drawing
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
    • C03B17/02—Forming molten glass coated with coloured layers; Forming molten glass of different compositions or layers; Forming molten glass comprising reinforcements or inserts
    • C03B17/025—Tubes or rods
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
    • C03B17/04—Forming tubes or rods by drawing from stationary or rotating tools or from forming nozzles
    • 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
    • C03B37/022—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from molten glass in which the resultant product consists of different sorts of glass or is characterised by shape, e.g. hollow fibres, undulated fibres, fibres presenting a rough surface
    • C03B37/023—Fibres composed of different sorts of glass, e.g. glass optical fibres, made by the double crucible technique
    • 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
    • C03B37/029—Furnaces therefor
    • 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
    • C03B37/08—Bushings, e.g. construction, bushing reinforcement means; Spinnerettes; Nozzles; Nozzle plates
    • C03B37/085—Feeding devices therefor
    • 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
    • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10—Coating
    • C03C25/104—Coating to obtain optical fibres
    • C03C25/105—Organic claddings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Glass Compositions (AREA)
  • Glass Melting And Manufacturing (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Abstract

PROCEDE POUR FABRIQUER DES FIBRES OPTIQUES PRESENTANT UN AFFAIBLISSEMENT REDUIT ET UNE GRANDE OUVERTURE NUMERIQUE. DANS UN DISPOSITIF POUR LA MISE EN OEUVRE DU PROCEDE, ON FAIT FONDRE DES VERRES A PLUSIEURS CONSTITUANTS ET A BAS POINT DE FUSION DANS UN CREUSET EN VERRE QUARTZEUX 1, PUIS ON SOUMET L'ENSEMBLE A UNE HOMOGENEISATION ET A UNE PURIFICATION, A LA SUITE DE QUOI LE VERRE FONDU EST TIRE A TRAVERS UNE OUVERTURE 1 SITUEE DANS LE FOND DU CREUSET 1 POUR FORMER UNE FIBRE 14, QUI EST ENROBEE PAR UNE MATIERE PLASTIQUE ACTIVE DU POINT DE VUE OPTIQUE DANS UN DISPOSITIF 16, PUIS TRAVERSE UN FOUR DE SECHAGE 17 POUR S'ENROULER SUR UN TAMBOUR 19. APPLICATION NOTAMMENT AUX GUIDES D'ONDE DE LUMIERE A FIBRES DE VERRE DE HAUTE QUALITE.
FR7922766A 1978-09-29 1979-09-12 Procede pour fabriquer des fibres optiques presentant un affaiblissement reduit et une grande ouverture numerique Withdrawn FR2437381A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782842586 DE2842586A1 (de) 1978-09-29 1978-09-29 Verfahren zur herstellung von lichtleitfasern niedriger daempfung und hoher numerischer apertur

Publications (1)

Publication Number Publication Date
FR2437381A1 true FR2437381A1 (fr) 1980-04-25

Family

ID=6050933

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7922766A Withdrawn FR2437381A1 (fr) 1978-09-29 1979-09-12 Procede pour fabriquer des fibres optiques presentant un affaiblissement reduit et une grande ouverture numerique

Country Status (5)

Country Link
US (1) US4251250A (fr)
JP (1) JPS5547240A (fr)
DE (1) DE2842586A1 (fr)
FR (1) FR2437381A1 (fr)
GB (1) GB2033373B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2532299A1 (fr) * 1982-08-27 1984-03-02 Corning Glass Works Amelioration a la preparation des verres destines a la fabrication de guides d'ondes optiques par le procede du double creuset et guides d'ondes optiques resultants
EP0109131A1 (fr) * 1982-11-16 1984-05-23 Koninklijke Philips Electronics N.V. Procédé et appareil pour la fabrication en continu des objets longs à partir d'un matériau solide
FR2586412A1 (fr) * 1985-08-22 1987-02-27 Kokusai Denshin Denwa Co Ltd Procede et appareil pour la fabrication d'une ebauche pour fibre de verre au fluorure

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1167852B (it) * 1981-03-24 1987-05-20 Stefano Sottini Dispositivo di trasmissione di radiazione laser di alta potenza che utilizza una fibra ottica a sezione variabile e suo procedimento di realizzazione
US4383843A (en) * 1981-09-16 1983-05-17 Western Electric Company, Inc. Methods of and apparatus for heating a preform from which lightguide fiber is drawn
ATE20875T1 (de) * 1982-09-10 1986-08-15 British Telecomm Verfahren zum trocknen von oxydglaesern.
US4525388A (en) * 1983-12-23 1985-06-25 Usg Corporation Process for expanding and coating perlite
GB8419829D0 (en) * 1984-08-03 1984-09-05 British Telecomm Treating glass compositions
DE3707969A1 (de) * 1987-03-12 1988-09-22 Rheydt Kabelwerk Ag Vefahren zum herstellen einer optischen faser
DE10127044C1 (de) * 2001-06-02 2002-10-17 Schott Glas Vorrichtung und Verfahren zur Verminderung der Gasströmung im Ziehkanal um die Ziehzwiebel
AT519235B1 (de) * 2017-03-21 2018-05-15 Destra Gmbh Schmelzofen
US11635640B2 (en) * 2018-10-01 2023-04-25 E Ink Corporation Switching fibers for textiles

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3209641A (en) * 1960-02-15 1965-10-05 American Optical Corp Infra-red transmitting fibers formed of arsenic and sulphur
FR2278087A1 (fr) * 1974-07-10 1976-02-06 Post Office Perfectionnements aux methodes de fabrication par etirage de guides d'ondes optiques et appareil de mise en oeuvre du procede
FR2369223A1 (fr) * 1976-11-02 1978-05-26 Fujitsu Ltd Verre optique pour ligne de transmission et son procede de fabrication

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4032313A (en) * 1973-10-04 1977-06-28 Canon Kabushiki Kaisha Apparatus for producing optical fibers by using crucibles
DE2629658A1 (de) * 1976-07-01 1978-01-05 Siemens Ag Vorrichtung und verfahren zur herstellung von lichtleitfasern mit lose sitzender ummantelung aus glas
DE2654308A1 (de) * 1976-11-30 1978-06-01 Siemens Ag Doppeltiegelanlage zur herstellung von lichtleitfasern
DE2734152A1 (de) * 1977-07-28 1979-02-08 Siemens Ag Vorrichtung zum ziehen eines buendels von kern-mantel-lichtleitfasern

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3209641A (en) * 1960-02-15 1965-10-05 American Optical Corp Infra-red transmitting fibers formed of arsenic and sulphur
FR2278087A1 (fr) * 1974-07-10 1976-02-06 Post Office Perfectionnements aux methodes de fabrication par etirage de guides d'ondes optiques et appareil de mise en oeuvre du procede
FR2369223A1 (fr) * 1976-11-02 1978-05-26 Fujitsu Ltd Verre optique pour ligne de transmission et son procede de fabrication

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/78 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2532299A1 (fr) * 1982-08-27 1984-03-02 Corning Glass Works Amelioration a la preparation des verres destines a la fabrication de guides d'ondes optiques par le procede du double creuset et guides d'ondes optiques resultants
EP0109131A1 (fr) * 1982-11-16 1984-05-23 Koninklijke Philips Electronics N.V. Procédé et appareil pour la fabrication en continu des objets longs à partir d'un matériau solide
FR2586412A1 (fr) * 1985-08-22 1987-02-27 Kokusai Denshin Denwa Co Ltd Procede et appareil pour la fabrication d'une ebauche pour fibre de verre au fluorure

Also Published As

Publication number Publication date
DE2842586A1 (de) 1980-04-17
US4251250A (en) 1981-02-17
GB2033373B (en) 1983-01-19
GB2033373A (en) 1980-05-21
JPS5547240A (en) 1980-04-03

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