SE9500406L - Device and method for coupling one or more wavelength channels to and from an optical fiber - Google Patents

Device and method for coupling one or more wavelength channels to and from an optical fiber

Info

Publication number
SE9500406L
SE9500406L SE9500406A SE9500406A SE9500406L SE 9500406 L SE9500406 L SE 9500406L SE 9500406 A SE9500406 A SE 9500406A SE 9500406 A SE9500406 A SE 9500406A SE 9500406 L SE9500406 L SE 9500406L
Authority
SE
Sweden
Prior art keywords
fibre
coupler
grating
wavelength
wavelength channels
Prior art date
Application number
SE9500406A
Other languages
Swedish (sv)
Other versions
SE503514C2 (en
SE9500406D0 (en
Inventor
Magnus Gunnar Oeberg
Bengt Soeren Hugo Johansson
Lars Aksel Johansen
Lars Erik Egnell
Bo Erik Lagerstroem
Dag Bonnedal
Johan Arne Sandell
Sven Owe Lennart Fransson
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE9500406A priority Critical patent/SE9500406L/en
Publication of SE9500406D0 publication Critical patent/SE9500406D0/en
Priority to EP96902554A priority patent/EP0808473A1/en
Priority to CA002211553A priority patent/CA2211553A1/en
Priority to JP8524186A priority patent/JPH11501777A/en
Priority to PCT/SE1996/000121 priority patent/WO1996024871A1/en
Publication of SE503514C2 publication Critical patent/SE503514C2/en
Publication of SE9500406L publication Critical patent/SE9500406L/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
    • G02B6/24—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
    • G02B6/29304—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 diffraction, e.g. grating
    • G02B6/29316—Light guides comprising a diffractive element, e.g. grating in or on the light guide such that diffracted light is confined in the light guide
    • G02B6/29317—Light guides of the optical fibre type
    • G02B6/29319—With a cascade of diffractive elements or of diffraction operations
    • 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
    • G02B6/29379—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 characterised by the function or use of the complete device
    • G02B6/2938—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 characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM
    • G02B6/29382—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 characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM including at least adding or dropping a signal, i.e. passing the majority of signals
    • G02B6/29383—Adding and dropping

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)
  • Mechanical Coupling Of Light Guides (AREA)

Abstract

The present invention relates to an arrangement and a method for selectively switching wavelength channels to and from an optical fibre (1). The arrangement according to the invention comprises at least two fibre couplers (2, 3) and one or more fibre gratings (4) arranged between these. The first fibre coupler (2) is adapted to take off a component of the signal and to switch another component of the signal to a fibre grating. The said grating is adapted to function as a band reflex filter and to prevent selected wavelengts from continuing on the fibre (1) and to reflect these back in the fibre (1). Other wavelengths are allowed to pass further in the arrangement. The second fibre coupler (3) is arranged in a position on the other side of the fibre grating (4) along the optical fibre (1). The said fibre coupler (3) is adapted for introduction of the wavelength removed in the first fibre coupler (2) or for introduction of any other wavelength which is not already present on the fibre.
SE9500406A 1995-02-06 1995-02-06 Device and method for coupling one or more wavelength channels to and from an optical fiber SE9500406L (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE9500406A SE9500406L (en) 1995-02-06 1995-02-06 Device and method for coupling one or more wavelength channels to and from an optical fiber
EP96902554A EP0808473A1 (en) 1995-02-06 1996-02-02 Arrangement and method at an optical fibre
CA002211553A CA2211553A1 (en) 1995-02-06 1996-02-02 Arrangement and method at an optical fibre
JP8524186A JPH11501777A (en) 1995-02-06 1996-02-02 Apparatus and method for placing on optical fiber
PCT/SE1996/000121 WO1996024871A1 (en) 1995-02-06 1996-02-02 Arrangement and method at an optical fibre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9500406A SE9500406L (en) 1995-02-06 1995-02-06 Device and method for coupling one or more wavelength channels to and from an optical fiber

Publications (3)

Publication Number Publication Date
SE9500406D0 SE9500406D0 (en) 1995-02-06
SE503514C2 SE503514C2 (en) 1996-07-01
SE9500406L true SE9500406L (en) 1996-07-01

Family

ID=20397088

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9500406A SE9500406L (en) 1995-02-06 1995-02-06 Device and method for coupling one or more wavelength channels to and from an optical fiber

Country Status (5)

Country Link
EP (1) EP0808473A1 (en)
JP (1) JPH11501777A (en)
CA (1) CA2211553A1 (en)
SE (1) SE9500406L (en)
WO (1) WO1996024871A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1012646A1 (en) * 1996-10-10 2000-06-28 Tyco Submarine Systems Ltd. Method and apparatus for combining add/drop optical signal lines from a plurality of branching units
KR100206176B1 (en) * 1996-12-03 1999-07-01 윤종용 Optical attenuator and the manufacturing method thereof
GB2354895B (en) * 1996-12-30 2001-06-13 Furukawa Electric Europ Ltd Isolated multiple grating system for filtering requirements
US6047096A (en) * 1997-03-07 2000-04-04 Telefonaktiebolaget Lm Ericsson Optical device
EP0964275A1 (en) * 1998-06-09 1999-12-15 PIRELLI CAVI E SISTEMI S.p.A. Method and device for dropping optical channels in an optical transmission system
JP4707399B2 (en) * 2004-07-30 2011-06-22 富士通株式会社 Optical add / drop device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5195161A (en) * 1991-12-11 1993-03-16 At&T Bell Laboratories Optical waveguide comprising Bragg grating coupling means

Also Published As

Publication number Publication date
JPH11501777A (en) 1999-02-09
WO1996024871A1 (en) 1996-08-15
SE503514C2 (en) 1996-07-01
SE9500406D0 (en) 1995-02-06
EP0808473A1 (en) 1997-11-26
CA2211553A1 (en) 1996-08-15

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