GB1097716A - Method of making optical filaments and optical filament devices - Google Patents

Method of making optical filaments and optical filament devices

Info

Publication number
GB1097716A
GB1097716A GB12243/65A GB1224365A GB1097716A GB 1097716 A GB1097716 A GB 1097716A GB 12243/65 A GB12243/65 A GB 12243/65A GB 1224365 A GB1224365 A GB 1224365A GB 1097716 A GB1097716 A GB 1097716A
Authority
GB
United Kingdom
Prior art keywords
filament
particles
glass
filaments
optical
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
GB12243/65A
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.)
Compagnie de Saint Gobain SA
Original Assignee
Compagnie de Saint Gobain SA
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
Priority claimed from FR968424A external-priority patent/FR1398020A/en
Application filed by Compagnie de Saint Gobain SA filed Critical Compagnie de Saint Gobain SA
Publication of GB1097716A publication Critical patent/GB1097716A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C03C13/046—Multicomponent glass compositions

Landscapes

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

Abstract

Light conducting optical filaments and filament systems are formed by depositing on a core of a single transparent glass filament, solid particles of a glass of lower refractive index than the glass of the filament and fusing the particles to form a sheath. A drawn filament is passed through a bath containing a suspension of the glass particles in a liquid such as ethyl lactate, oils such as a mixture of turpene oils, turpentine and wax, or the particles may be deposited by spraying or dipping. The liquid phase is dried off and the coated filament cut to lengths and placed closely packed in a mould having a cross-section desired such as round, hexagonal or square. The mould is then placed in a furnace, the temperature of which is high enough to melt the particles to form a sheath without melting the filaments. The fused bundle may then be drawn out to form a multiple optical filament. The glass used for the filament may be in weight percentages: SiO2 35; B2O3 15; BeO 42; Al2O3 1.5; Na2O 3; ZrO2 3.5; and that of the coating particles: SiO2 70; K2O 6; Na2O 9; B2O3 9; BaO 1; CaO 2.75; Al2O3 2.25.
GB12243/65A 1964-03-23 1965-03-23 Method of making optical filaments and optical filament devices Expired GB1097716A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR968328A FR1397991A (en) 1964-03-23 1964-03-23 Manufacturing process of optical fibers and fibrous optical devices
FR968424A FR1398020A (en) 1964-03-24 1964-03-24 Multiple optical fiber manufacturing process

Publications (1)

Publication Number Publication Date
GB1097716A true GB1097716A (en) 1968-01-03

Family

ID=26206604

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12243/65A Expired GB1097716A (en) 1964-03-23 1965-03-23 Method of making optical filaments and optical filament devices

Country Status (4)

Country Link
BE (1) BE661401A (en)
FR (1) FR1397991A (en)
GB (1) GB1097716A (en)
NL (1) NL6503618A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2122895A1 (en) * 1970-05-11 1971-11-25 Corning Glass Works Process for making optical fibers
DE2300013A1 (en) * 1972-01-03 1973-07-26 Corning Glass Works METHOD OF MANUFACTURING OPTICAL FIBERS
DE2919080A1 (en) * 1978-05-12 1979-11-15 Fujitsu Ltd METHOD OF MANUFACTURING OPTICAL FIBER
EP0018704A1 (en) * 1979-02-22 1980-11-12 Corning Glass Works Method of substantially continuously forming an optical waveguide preform and an optical waveguide
FR2481261A1 (en) * 1980-04-25 1981-10-30 Nippon Sheet Glass Co Ltd Optical waveguide fibres with high resistance to water - where fibres contain barium oxide, silica, zirconium, di:oxide, boric oxide, sodium oxide and germanium di:oxide

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2537608B2 (en) * 1982-12-10 1985-12-27 Thomson Csf DEVICE FOR MANUFACTURING AN OBJECT WITH A CHIRAL STRUCTURE FROM A SOURCE OF FORMABLE MATERIAL

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2122895A1 (en) * 1970-05-11 1971-11-25 Corning Glass Works Process for making optical fibers
DE2300013A1 (en) * 1972-01-03 1973-07-26 Corning Glass Works METHOD OF MANUFACTURING OPTICAL FIBERS
DE2919080A1 (en) * 1978-05-12 1979-11-15 Fujitsu Ltd METHOD OF MANUFACTURING OPTICAL FIBER
EP0018704A1 (en) * 1979-02-22 1980-11-12 Corning Glass Works Method of substantially continuously forming an optical waveguide preform and an optical waveguide
FR2481261A1 (en) * 1980-04-25 1981-10-30 Nippon Sheet Glass Co Ltd Optical waveguide fibres with high resistance to water - where fibres contain barium oxide, silica, zirconium, di:oxide, boric oxide, sodium oxide and germanium di:oxide

Also Published As

Publication number Publication date
BE661401A (en) 1965-09-20
NL6503618A (en) 1965-09-24
FR1397991A (en) 1965-05-07

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