IT1059640B - PROCEDURE FOR THE MANUFACTURE OF SECTIONS OF TRANSFORMATION OF OPTICAL FIBERS - Google Patents

PROCEDURE FOR THE MANUFACTURE OF SECTIONS OF TRANSFORMATION OF OPTICAL FIBERS

Info

Publication number
IT1059640B
IT1059640B IT2210676A IT2210676A IT1059640B IT 1059640 B IT1059640 B IT 1059640B IT 2210676 A IT2210676 A IT 2210676A IT 2210676 A IT2210676 A IT 2210676A IT 1059640 B IT1059640 B IT 1059640B
Authority
IT
Italy
Prior art keywords
transformation
sections
procedure
manufacture
optical fibers
Prior art date
Application number
IT2210676A
Other languages
Italian (it)
Original Assignee
Int Standard Electric Corp
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 Int Standard Electric Corp filed Critical Int Standard Electric Corp
Application granted granted Critical
Publication of IT1059640B publication Critical patent/IT1059640B/en

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
    • 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
    • C03B23/00—Re-forming shaped glass
    • C03B23/02—Re-forming glass sheets
    • C03B23/037—Re-forming glass sheets by drawing
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/20—Uniting glass pieces by fusing without substantial reshaping
    • 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
    • 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
    • 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
    • C03B37/027—Fibres composed of different sorts of glass, e.g. glass optical fibres
    • 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
    • C03B2203/18—Axial perturbations, e.g. in refractive index or composition
    • 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
IT2210676A 1975-04-10 1976-04-09 PROCEDURE FOR THE MANUFACTURE OF SECTIONS OF TRANSFORMATION OF OPTICAL FIBERS IT1059640B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1475775A GB1448080A (en) 1975-04-10 1975-04-10 Optical fibre transducer

Publications (1)

Publication Number Publication Date
IT1059640B true IT1059640B (en) 1982-06-21

Family

ID=10046959

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2210676A IT1059640B (en) 1975-04-10 1976-04-09 PROCEDURE FOR THE MANUFACTURE OF SECTIONS OF TRANSFORMATION OF OPTICAL FIBERS

Country Status (6)

Country Link
AU (1) AU499838B2 (en)
CH (1) CH607059A5 (en)
FR (1) FR2306947A1 (en)
GB (1) GB1448080A (en)
IT (1) IT1059640B (en)
NL (1) NL7603370A (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4053205A (en) * 1976-07-30 1977-10-11 Bell Telephone Laboratories, Incorporated Optical fiber having reduced dispersion
US4053204A (en) * 1976-07-30 1977-10-11 Bell Telephone Laboratories, Incorporated Optical fiber having reduced dispersion
US4179187A (en) * 1977-08-12 1979-12-18 Corning Glass Works Multiple mode waveguide having cylindrical perturbations
US4578096A (en) * 1980-08-13 1986-03-25 Warner-Lambert Technologies, Inc. Gradient index optical components
NL8004960A (en) * 1980-08-30 1982-04-01 Philips Nv METHOD FOR MANUFACTURING AN OPTICAL CORE FIBER WITH A CIRCULAR SECTION AND SECTIONAL CROWN FOR USE IN THIS PROCESS.
GB2188719B (en) * 1986-04-02 1990-08-22 Stc Plc Optical fibres
FR2698200B1 (en) * 1992-11-13 1995-02-03 Dominitz Jacques Charles Manufacturing process for message carrier object.
FR2707285B1 (en) * 1993-07-06 1995-08-11 Alcatel Fibres Optiques Preform for optical fiber, process for manufacturing such a preform and optical fiber obtained from this preform.
AU693329B2 (en) * 1995-04-13 1998-06-25 Corning Incorporated Dispersion managed optical waveguide
US5894537A (en) * 1996-01-11 1999-04-13 Corning Incorporated Dispersion managed optical waveguide
US6173588B1 (en) 1996-01-11 2001-01-16 Corning Incorporated Method of making dispersion managed optical fibers
TW342457B (en) * 1996-04-29 1998-10-11 Corning Inc Method of making optical fibers
US6389207B1 (en) 1999-12-13 2002-05-14 Corning Incorporated Dispersion managed fiber
US6550279B1 (en) 2000-09-01 2003-04-22 Corning Incorporated Process for drawing optical fiber from a multiple crucible apparatus with a thermal gradient
US6588235B2 (en) 2001-08-30 2003-07-08 Corning Incorporated Method of centering a fiber core in a multiple-crucible method
US10927029B2 (en) 2017-11-30 2021-02-23 Corning Incorporated Apparatuses and methods for continuous production of glass tubing
GB2581828B (en) * 2019-02-28 2022-03-30 Ip2Ipo Innovations Ltd Longitudinally non-uniform preform and method of making the same

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2995970A (en) * 1958-04-11 1961-08-15 American Optical Corp Method of forming fiber optical devices
GB1252732A (en) * 1967-11-08 1971-11-10
DE2237820A1 (en) * 1972-08-01 1974-02-14 Siemens Ag COVERED FIBER OPERATING LOW ATTENUATION
DE2339945A1 (en) * 1973-08-07 1975-02-13 Siemens Ag FIBER OPTIC AND METHOD OF MANUFACTURING THEREOF
GB1507144A (en) * 1974-07-10 1978-04-12 Post Office Apparatus for drawing dielectric optical waveguides

Also Published As

Publication number Publication date
AU499838B2 (en) 1979-05-03
FR2306947B1 (en) 1979-08-31
GB1448080A (en) 1976-09-02
FR2306947A1 (en) 1976-11-05
AU1285076A (en) 1977-10-13
CH607059A5 (en) 1978-11-30
NL7603370A (en) 1976-10-12

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