WO2002075378A3 - Tuneable optical filter arrangement for wavelength division multiplex (wdm) network - Google Patents

Tuneable optical filter arrangement for wavelength division multiplex (wdm) network Download PDF

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Publication number
WO2002075378A3
WO2002075378A3 PCT/GB2002/001196 GB0201196W WO02075378A3 WO 2002075378 A3 WO2002075378 A3 WO 2002075378A3 GB 0201196 W GB0201196 W GB 0201196W WO 02075378 A3 WO02075378 A3 WO 02075378A3
Authority
WO
WIPO (PCT)
Prior art keywords
wdm
filter arrangement
network
optical filter
wavelength division
Prior art date
Application number
PCT/GB2002/001196
Other languages
French (fr)
Other versions
WO2002075378A2 (en
Inventor
Robert Charles Goodfellow
Original Assignee
Marconi Comm Ltd
Robert Charles Goodfellow
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 GB0106659A external-priority patent/GB0106659D0/en
Application filed by Marconi Comm Ltd, Robert Charles Goodfellow filed Critical Marconi Comm Ltd
Priority to AU2002238783A priority Critical patent/AU2002238783A1/en
Publication of WO2002075378A2 publication Critical patent/WO2002075378A2/en
Publication of WO2002075378A3 publication Critical patent/WO2002075378A3/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
    • G02B6/29346—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 wave or beam interference
    • G02B6/29361—Interference filters, e.g. multilayer coatings, thin film filters, dichroic splitters or mirrors based on multilayers, WDM filters
    • 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
    • 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
    • G02B6/29395—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 configurable, e.g. tunable or reconfigurable
    • 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
    • G02B6/29346—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 wave or beam interference
    • G02B6/29361—Interference filters, e.g. multilayer coatings, thin film filters, dichroic splitters or mirrors based on multilayers, WDM filters
    • G02B6/29362—Serial cascade of filters or filtering operations, e.g. for a large number of channels
    • G02B6/29364—Cascading by a light guide path between filters or filtering operations, e.g. fibre interconnected single filter modules
    • 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
    • G02B6/29346—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 wave or beam interference
    • G02B6/29361—Interference filters, e.g. multilayer coatings, thin film filters, dichroic splitters or mirrors based on multilayers, WDM filters
    • G02B6/2937—In line lens-filtering-lens devices, i.e. elements arranged along a line and mountable in a cylindrical package for compactness, e.g. 3- port device with GRIN lenses sandwiching a single filter operating at normal incidence in a tubular package
    • 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
    • G02B6/35—Optical coupling means having switching means
    • G02B6/354—Switching arrangements, i.e. number of input/output ports and interconnection types
    • G02B6/356—Switching arrangements, i.e. number of input/output ports and interconnection types in an optical cross-connect device, e.g. routing and switching aspects of interconnecting different paths propagating different wavelengths to (re)configure the various input and output links
    • 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
    • G02B6/35—Optical coupling means having switching means
    • G02B6/3564—Mechanical details of the actuation mechanism associated with the moving element or mounting mechanism details
    • G02B6/3568—Mechanical details of the actuation mechanism associated with the moving element or mounting mechanism details characterised by the actuating force
    • G02B6/357—Electrostatic force
    • 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
    • G02B6/35—Optical coupling means having switching means
    • G02B6/3564—Mechanical details of the actuation mechanism associated with the moving element or mounting mechanism details
    • G02B6/3568—Mechanical details of the actuation mechanism associated with the moving element or mounting mechanism details characterised by the actuating force
    • G02B6/3574—Mechanical force, e.g. pressure variations
    • 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
    • G02B6/35—Optical coupling means having switching means
    • G02B6/3564—Mechanical details of the actuation mechanism associated with the moving element or mounting mechanism details
    • G02B6/3568—Mechanical details of the actuation mechanism associated with the moving element or mounting mechanism details characterised by the actuating force
    • G02B6/3578—Piezoelectric force
    • 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
    • G02B6/35—Optical coupling means having switching means
    • G02B6/3598—Switching means directly located between an optoelectronic element and waveguides, including direct displacement of either the element or the waveguide, e.g. optical pulse generation

Abstract

A tuneable optical filter arrangement (54) for selecting a wavelength channel from radiation including a plurality of wavelength channels in a WDM network is disclosed. The filter arrangement comprises a moveable planar support member (58) which carries a plurality of filter elements (60a 60x). Each filter element (60a 60x) comprises a multi-layered dielectric stack (multiple Fabry-Pérot etalon) having a fixed passband corresponding a WDM wavelength channel. In operation a wavelength channel is selected by moving (translating or rotating) a respective filter element into the path of said radiation.
PCT/GB2002/001196 2001-03-17 2002-03-14 Tuneable optical filter arrangement for wavelength division multiplex (wdm) network WO2002075378A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002238783A AU2002238783A1 (en) 2001-03-17 2002-03-14 Tuneable optical filter arrangement for wavelength division multiplex (wdm) network

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0106659A GB0106659D0 (en) 2001-03-17 2001-03-17 Tuneable optical filter arrangement for wavelength division multiplex (wdm) network
GB0106659.6 2001-03-17
GB0121645A GB0121645D0 (en) 2001-03-17 2001-09-06 Tuneable optical filter arrangement foe wavelength division multiplex (WDM) work
GB0121645.6 2001-09-06

Publications (2)

Publication Number Publication Date
WO2002075378A2 WO2002075378A2 (en) 2002-09-26
WO2002075378A3 true WO2002075378A3 (en) 2003-04-10

Family

ID=26245845

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2002/001196 WO2002075378A2 (en) 2001-03-17 2002-03-14 Tuneable optical filter arrangement for wavelength division multiplex (wdm) network

Country Status (1)

Country Link
WO (1) WO2002075378A2 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5524155A (en) * 1995-01-06 1996-06-04 Texas Instruments Incorporated Demultiplexer for wavelength-multiplexed optical signal
US5689333A (en) * 1988-12-22 1997-11-18 Renishaw Plc Spectroscopic apparatus and methods
US5822095A (en) * 1995-09-19 1998-10-13 Kokusai Denshin Denwa Kabushiki Kaisha Optical add-drop multiplexer
EP0887964A2 (en) * 1997-06-26 1998-12-30 Gpt Limited Filter selector
FR2771873A1 (en) * 1997-11-28 1999-06-04 Nec Corp Optical circuit for filtering multiplexed optical signals
WO1999036811A1 (en) * 1998-01-15 1999-07-22 Ciena Corporation Optical interference filter
WO2001013151A1 (en) * 1999-08-13 2001-02-22 Corning Incorporated Segmented thin film add/drop switch and multiplexer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5689333A (en) * 1988-12-22 1997-11-18 Renishaw Plc Spectroscopic apparatus and methods
US5524155A (en) * 1995-01-06 1996-06-04 Texas Instruments Incorporated Demultiplexer for wavelength-multiplexed optical signal
US5822095A (en) * 1995-09-19 1998-10-13 Kokusai Denshin Denwa Kabushiki Kaisha Optical add-drop multiplexer
EP0887964A2 (en) * 1997-06-26 1998-12-30 Gpt Limited Filter selector
FR2771873A1 (en) * 1997-11-28 1999-06-04 Nec Corp Optical circuit for filtering multiplexed optical signals
WO1999036811A1 (en) * 1998-01-15 1999-07-22 Ciena Corporation Optical interference filter
WO2001013151A1 (en) * 1999-08-13 2001-02-22 Corning Incorporated Segmented thin film add/drop switch and multiplexer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LISSBERGER P H ET AL: "NARROWBAND POSITION-TUNED MULTILAYER INTERFERENCE FILTER FOR USE IN SINGLE-MODE-FIBRE SYSTEMS", ELECTRONICS LETTERS, IEE STEVENAGE, GB, vol. 21, no. 18, 29 August 1985 (1985-08-29), pages 798 - 799, XP000997022, ISSN: 0013-5194 *

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Publication number Publication date
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