NL7710280A - PROCESS FOR THE MANUFACTURE OF OPTICAL FIBERS. - Google Patents

PROCESS FOR THE MANUFACTURE OF OPTICAL FIBERS.

Info

Publication number
NL7710280A
NL7710280A NL7710280A NL7710280A NL7710280A NL 7710280 A NL7710280 A NL 7710280A NL 7710280 A NL7710280 A NL 7710280A NL 7710280 A NL7710280 A NL 7710280A NL 7710280 A NL7710280 A NL 7710280A
Authority
NL
Netherlands
Prior art keywords
manufacture
optical fibers
fibers
optical
Prior art date
Application number
NL7710280A
Other languages
Dutch (nl)
Original Assignee
Hitachi Ltd
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 JP11186476A external-priority patent/JPS5337440A/en
Priority claimed from JP1427077A external-priority patent/JPS53100253A/en
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of NL7710280A publication Critical patent/NL7710280A/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
    • G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
    • G02B6/03616—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference
    • G02B6/03622—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 2 layers only
    • G02B6/03627—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 2 layers only arranged - +
    • 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
    • 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
    • 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
    • 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
    • C03B2203/26—Parabolic or graded index [GRIN] core profile
    • 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
    • G02B6/028—Optical fibres with cladding with or without a coating with core or cladding having graded refractive index
    • G02B6/0281—Graded index region forming part of the central core segment, e.g. alpha profile, triangular, trapezoidal core
    • 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
    • G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
    • G02B6/03605—Highest refractive index not on central axis
    • G02B6/03611—Highest index adjacent to central axis region, e.g. annular core, coaxial ring, centreline depression affecting waveguiding
NL7710280A 1976-09-20 1977-09-19 PROCESS FOR THE MANUFACTURE OF OPTICAL FIBERS. NL7710280A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP11186476A JPS5337440A (en) 1976-09-20 1976-09-20 Production of optical fibers
JP1427077A JPS53100253A (en) 1977-02-14 1977-02-14 Production of optical fibers

Publications (1)

Publication Number Publication Date
NL7710280A true NL7710280A (en) 1978-03-22

Family

ID=26350184

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7710280A NL7710280A (en) 1976-09-20 1977-09-19 PROCESS FOR THE MANUFACTURE OF OPTICAL FIBERS.

Country Status (3)

Country Link
DE (1) DE2741854B2 (en)
FR (1) FR2364865A1 (en)
NL (1) NL7710280A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2384722A1 (en) * 1977-03-24 1978-10-20 Int Standard Electric Corp IMPROVEMENTS IN THE MANUFACTURING OF OPTICAL FIBER PREFORMS

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2814380C3 (en) * 1978-04-04 1982-07-08 Schott Glaswerke, 6500 Mainz Process for the production of optical glass fibers from a collapsed silica glass tube
US4229070A (en) * 1978-07-31 1980-10-21 Corning Glass Works High bandwidth optical waveguide having B2 O3 free core and method of fabrication
US4230396A (en) * 1978-07-31 1980-10-28 Corning Glass Works High bandwidth optical waveguides and method of fabrication
DE2907833A1 (en) * 1979-02-28 1980-09-11 Siemens Ag METHOD FOR PRODUCING COATED GLASS BODIES
US4304581A (en) * 1980-08-07 1981-12-08 Western Electric Co., Inc. Lightguide preform fabrication
DE3206144A1 (en) * 1982-02-20 1983-09-01 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt METHOD FOR PRODUCING A LIGHT WAVE GUIDE
FR2576693B1 (en) * 1985-01-30 1989-02-17 Comp Generale Electricite METHOD FOR MANUFACTURING AN OPTICAL COMPONENT WITH A REFRACTION INDEX GRADIENT

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51146243A (en) * 1975-06-11 1976-12-15 Hitachi Ltd Process for manufacturing optical fiber
DE2530786A1 (en) * 1975-07-10 1977-01-27 Licentia Gmbh Light guiding glass filaments - contg. core doped with less volatile substances than dopants in envelope

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2384722A1 (en) * 1977-03-24 1978-10-20 Int Standard Electric Corp IMPROVEMENTS IN THE MANUFACTURING OF OPTICAL FIBER PREFORMS

Also Published As

Publication number Publication date
DE2741854B2 (en) 1981-03-19
FR2364865B1 (en) 1983-01-14
FR2364865A1 (en) 1978-04-14
DE2741854A1 (en) 1978-03-23

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Legal Events

Date Code Title Description
BC A request for examination has been filed
A85 Still pending on 85-01-01
BV The patent application has lapsed