GB2168825B - Optical coupler - Google Patents

Optical coupler

Info

Publication number
GB2168825B
GB2168825B GB08529876A GB8529876A GB2168825B GB 2168825 B GB2168825 B GB 2168825B GB 08529876 A GB08529876 A GB 08529876A GB 8529876 A GB8529876 A GB 8529876A GB 2168825 B GB2168825 B GB 2168825B
Authority
GB
United Kingdom
Prior art keywords
optical coupler
coupler
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
GB08529876A
Other versions
GB2168825A (en
GB8529876D0 (en
Inventor
Wilhelm Koster
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.)
Alcatel Lucent NV
Original Assignee
Alcatel NV
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 Alcatel NV filed Critical Alcatel NV
Publication of GB8529876D0 publication Critical patent/GB8529876D0/en
Publication of GB2168825A publication Critical patent/GB2168825A/en
Application granted granted Critical
Publication of GB2168825B publication Critical patent/GB2168825B/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
    • G02B6/24—Coupling light guides
    • G02B6/255—Splicing of light guides, e.g. by fusion or bonding
    • G02B6/2558—Reinforcement of splice joint
    • 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
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
    • G02B6/2821—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using lateral coupling between contiguous fibres to split or combine optical signals
    • G02B6/2835—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using lateral coupling between contiguous fibres to split or combine optical signals formed or shaped by thermal treatment, e.g. couplers
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29331—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by evanescent wave coupling
    • G02B6/29332—Wavelength selective couplers, i.e. based on evanescent coupling between light guides, e.g. fused fibre couplers with transverse coupling between fibres having different propagation constant wavelength dependency

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optical Integrated Circuits (AREA)
  • Optical Couplings Of Light Guides (AREA)
GB08529876A 1984-12-21 1985-12-04 Optical coupler Expired GB2168825B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843446816 DE3446816A1 (en) 1984-12-21 1984-12-21 OPTICAL COUPLER

Publications (3)

Publication Number Publication Date
GB8529876D0 GB8529876D0 (en) 1986-01-15
GB2168825A GB2168825A (en) 1986-06-25
GB2168825B true GB2168825B (en) 1988-11-16

Family

ID=6253516

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08529876A Expired GB2168825B (en) 1984-12-21 1985-12-04 Optical coupler

Country Status (2)

Country Link
DE (1) DE3446816A1 (en)
GB (1) GB2168825B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8529864D0 (en) * 1985-12-04 1986-01-15 Gen Electric Co Plc Wdm coupler
EP0234326A3 (en) * 1986-02-24 1988-01-07 Allied Corporation Single mode optical fiber coupler and method of manufacture thereof
GB8629123D0 (en) * 1986-12-05 1987-01-14 Hussey C D Fibre optic components
DE19927453A1 (en) * 1999-06-16 2000-12-21 Univ Dresden Tech Optical coupler fabrication method, using mono-mode light waveguides fitted together for transmitting light in operating range from one mono-mode light waveguide to the others

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1315333A (en) * 1969-10-23 1973-05-02 Licentia Gmbh Optical coupling device
JPS5235789A (en) * 1975-09-17 1977-03-18 Mitsubishi Electric Corp Humidity-exchange type ozone generator
DE2853800A1 (en) * 1978-12-13 1980-06-26 Siemens Ag TUNABLE DIRECTIONAL COUPLER FOR LIGHTWAVE GUIDE
US4266851A (en) * 1979-11-06 1981-05-12 International Telephone And Telegraph Corporation Coupler for a concentric core optical fiber
JPS57204507A (en) * 1981-06-12 1982-12-15 Nec Corp Interference film type optical multiplexer and demultiplexer
US4435040A (en) * 1981-09-03 1984-03-06 Bell Telephone Laboratories, Incorporated Double-clad optical fiberguide
US4461536A (en) * 1981-09-10 1984-07-24 Board Of Trustees Of Leland Stanford Jr. University Fiber coupler displacement transducer
GB2150703B (en) * 1983-11-30 1987-03-11 Standard Telephones Cables Ltd Single mode fibre directional coupler

Also Published As

Publication number Publication date
GB2168825A (en) 1986-06-25
DE3446816A1 (en) 1986-07-10
GB8529876D0 (en) 1986-01-15

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19921204