GB1503793A - Light-conducting fibres or rods - Google Patents

Light-conducting fibres or rods

Info

Publication number
GB1503793A
GB1503793A GB16742/75A GB1674275A GB1503793A GB 1503793 A GB1503793 A GB 1503793A GB 16742/75 A GB16742/75 A GB 16742/75A GB 1674275 A GB1674275 A GB 1674275A GB 1503793 A GB1503793 A GB 1503793A
Authority
GB
United Kingdom
Prior art keywords
sheath
core
per
reflective
reinforcing
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
GB16742/75A
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.)
Carl Zeiss AG
Original Assignee
Carl Zeiss 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 Carl Zeiss AG filed Critical Carl Zeiss AG
Publication of GB1503793A publication Critical patent/GB1503793A/en
Expired legal-status Critical Current

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
    • G02B6/03694—Multiple layers differing in properties other than the refractive index, e.g. attenuation, diffusion, stress properties
    • 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
    • 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
    • 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
    • G02B6/02395—Glass optical fibre with a protective coating, e.g. two layer polymer coating deposited directly on a silica cladding surface during fibre manufacture
    • 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 - +
    • 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
    • G02B6/03633—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 - -
    • 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

Landscapes

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

Abstract

1503793 Optical glass fibres CARL - ZEISS - STIFTUNG [trading as JENAER GLASWERK SCHOTT & GEN] 23 April 1975 [24 April 1964] 16742/75 Heading C1M [Also in Division G2] A light-conducting fibre or rod of improved mechanical strength consists of a core portion 1 and a reflective sheath 2 having a lower R.I. than the core portion and being surrounded by a reinforcing sheath 3, the coefficient of thermal expansion (Á) of which is lower than that of the core and reflective sheath materials. The R.I. of the reinforcing sheath 3 may be higher or lower than that of the reflective sheath portion 2. In the first embodiment (Fig. I ) a fibre has a glass core 1 of Á = 93 Î 10<SP>-7</SP> per ‹ C., a reflective sheath 2 ot Á = 96 x 10<SP>-7</SP> per ‹ C. and a reinforcing sheath 3 of Á = 53 Î 10<SP>-7</SP> per ‹ C. In the second embodiment (Fig. 2, not shown) the core and sheath are as above, but the reflective sheath has Á = 57À5 x 10<SP>-7</SP> per ‹ C. and is coloured black to absorb light. The fibre may be of the gradient type, e.g. of quartz. The fibres or rods may be made by the "rodpipe" or double-jet process or by drawing down a tube which has been internally coated with the core glass and has been placed inside a pipe made of the material of the reinforcing sheath.
GB16742/75A 1974-04-24 1975-04-23 Light-conducting fibres or rods Expired GB1503793A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2419786A DE2419786B2 (en) 1974-04-24 1974-04-24 Light guide

Publications (1)

Publication Number Publication Date
GB1503793A true GB1503793A (en) 1978-03-15

Family

ID=5913801

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16742/75A Expired GB1503793A (en) 1974-04-24 1975-04-23 Light-conducting fibres or rods

Country Status (10)

Country Link
JP (1) JPS50149357A (en)
BE (1) BE828200A (en)
CA (1) CA1051239A (en)
CH (1) CH583911A5 (en)
DE (1) DE2419786B2 (en)
FR (1) FR2269088B3 (en)
GB (1) GB1503793A (en)
IT (1) IT1032678B (en)
NL (1) NL7504415A (en)
SE (1) SE406816B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2180059A (en) * 1985-09-05 1987-03-18 Stc Plc Plasma spectroscopy
WO2009111420A1 (en) * 2008-03-05 2009-09-11 The Boeing Company Glass fibers having improved strength

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK138437B (en) * 1976-11-09 1978-09-04 Nordiske Kabel Traad Light conducting element for use in installation in optical transmission means.
GB1602052A (en) * 1977-06-20 1981-11-04 Int Standard Electric Corp Optical fibre manufacture
JPS54107347U (en) * 1978-01-13 1979-07-28
NL193330C (en) * 1978-01-13 1999-06-02 Western Electric Co Optical waveguide and method for its manufacture.
US4249925A (en) * 1978-05-12 1981-02-10 Fujitsu Limited Method of manufacturing an optical fiber
DE2939659A1 (en) * 1978-10-06 1980-04-24 Int Standard Electric Corp Multilayer glass optical waveguide fibres - where outer sheath with low coefft. of thermal expansion provides fibres with high tensile strength
JPS5565909A (en) * 1978-11-13 1980-05-17 Nippon Telegr & Teleph Corp <Ntt> Optical fiber
DE2907650C3 (en) * 1979-02-27 1981-08-13 Heraeus Quarzschmelze Gmbh, 6450 Hanau Multimode light guide
JPS57139707A (en) * 1981-02-25 1982-08-28 Aloka Co Ltd Optical cable
SE443454B (en) * 1983-12-23 1986-02-24 Radians Innova Ab OPTICAL FIBER FOR TRANSFER OF HIGH OPTICAL POWER
DE3700565A1 (en) * 1987-01-10 1988-07-28 Licentia Gmbh Optical waveguide
DE4028275A1 (en) * 1990-09-06 1992-03-12 Kabelmetal Electro Gmbh METHOD FOR THE PRODUCTION OF FIBERGLASS FIBER OPTICS WITH INCREASED STRENGTH
CN111694090B (en) * 2020-07-17 2022-03-22 中国建筑材料科学研究总院有限公司 Optical fiber leather pipe and preparation method and application thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3823995A (en) * 1972-03-30 1974-07-16 Corning Glass Works Method of forming light focusing fiber waveguide
US3826560A (en) * 1972-03-30 1974-07-30 Corning Glass Works Method of forming a light focusing fiber waveguide
JPS50110341A (en) * 1974-02-07 1975-08-30

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2180059A (en) * 1985-09-05 1987-03-18 Stc Plc Plasma spectroscopy
WO2009111420A1 (en) * 2008-03-05 2009-09-11 The Boeing Company Glass fibers having improved strength
CN101959815A (en) * 2008-03-05 2011-01-26 波音公司 The glass fibre that intensity improves
CN101959815B (en) * 2008-03-05 2014-03-19 波音公司 Glass fibers having improved strength

Also Published As

Publication number Publication date
CA1051239A (en) 1979-03-27
SE7504763L (en) 1975-10-27
JPS50149357A (en) 1975-11-29
SE406816B (en) 1979-02-26
NL7504415A (en) 1975-10-28
CH583911A5 (en) 1977-01-14
DE2419786A1 (en) 1975-11-06
IT1032678B (en) 1979-06-20
FR2269088A1 (en) 1975-11-21
FR2269088B3 (en) 1978-11-10
AU8010775A (en) 1976-10-21
DE2419786B2 (en) 1979-09-06
BE828200A (en) 1975-08-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee