NO981153L - Filtervelger i optisk telekommunikasjonsnett - Google Patents

Filtervelger i optisk telekommunikasjonsnett

Info

Publication number
NO981153L
NO981153L NO981153A NO981153A NO981153L NO 981153 L NO981153 L NO 981153L NO 981153 A NO981153 A NO 981153A NO 981153 A NO981153 A NO 981153A NO 981153 L NO981153 L NO 981153L
Authority
NO
Norway
Prior art keywords
filters
row
filter
wavelength
wadm
Prior art date
Application number
NO981153A
Other languages
English (en)
Other versions
NO981153D0 (no
Inventor
Stephen Patrick Ferguson
Antony Michael Thorley
Original Assignee
Gpt 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
Application filed by Gpt Ltd filed Critical Gpt Ltd
Publication of NO981153D0 publication Critical patent/NO981153D0/no
Publication of NO981153L publication Critical patent/NO981153L/no

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
    • G02B6/29368—Light guide comprising the filter, e.g. filter deposited on a fibre end
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)

Abstract

I et optisk telekommunikasjonssystem som utnytter bølgedelt mulitipleksing (WDM), har en bølgelengdetilskudd/bortfall-mulitiplekser (WADM) en rekke filtere som ligger inntil hverandre. Hvert filter velger ut lys med hver sin bølgelengde som sendes i en muliti- plekset datastrøm langs en optisk fiber. Hver filterrekke ligger inntil et parti i rekken, som er et nominelt transparent filter og har utstyr for å forflytte rekken slik at bevegelsen mellom filtere som er i bruk, skjer via det nominelt transparente filterparti i rekker», l følge en fremgangsmåte for å drive en WADM, skjer overgangen mellom to filtere i en rekke av filtere som hvert enkelt er beregnet på å velge ut lys med hver sin bølgelengde som sendes i en multiplekset datastrøm langs en optisk fiber ved hjelp av et nominelt transparent filterparti i rekken.
NO981153A 1997-06-26 1998-03-16 Filtervelger i optisk telekommunikasjonsnett NO981153L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9713575.0A GB9713575D0 (en) 1997-06-26 1997-06-26 Filter selector

Publications (2)

Publication Number Publication Date
NO981153D0 NO981153D0 (no) 1998-03-16
NO981153L true NO981153L (no) 1998-12-28

Family

ID=10814992

Family Applications (1)

Application Number Title Priority Date Filing Date
NO981153A NO981153L (no) 1997-06-26 1998-03-16 Filtervelger i optisk telekommunikasjonsnett

Country Status (8)

Country Link
US (1) US6181451B1 (no)
EP (1) EP0887964B1 (no)
JP (1) JPH1127239A (no)
CN (1) CN1156097C (no)
AU (1) AU753905B2 (no)
DE (1) DE69834772T2 (no)
GB (2) GB9713575D0 (no)
NO (1) NO981153L (no)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6507424B2 (en) * 1997-10-24 2003-01-14 Canon Kabushiki Kaisha Optical space communication apparatus
WO2000039626A1 (en) * 1998-12-31 2000-07-06 Optical Coating Laboratory, Inc. Wavelength selective optical switch
US6285508B1 (en) * 1999-06-30 2001-09-04 Radiant Research Inc. Beam splitting ball lens method for its manufacture and apparatus for its packaging
AU2001238045A1 (en) * 2000-02-07 2001-08-14 Corning Incorporated Segmented thin film add/drop switch and multiplexer
US6587608B2 (en) * 2000-11-14 2003-07-01 Chameleon Optics, Inc. Reconfigurable, all optical add/drop nodes using non-interrupting switching apparatus and methods
GB2369896A (en) * 2000-12-06 2002-06-12 Marconi Comm Ltd Tunable optical filter actuator
WO2002075378A2 (en) * 2001-03-17 2002-09-26 Marconi Uk Intellectual Property Ltd Tuneable optical filter arrangement for wavelength division multiplex (wdm) network
WO2002086596A1 (en) 2001-04-20 2002-10-31 Cormack Robert H Polarization insensitive tunable optical filters
JP3530840B2 (ja) 2001-10-10 2004-05-24 サンテック株式会社 波長可変分波器、波長可変合波器及び波長ルーティング装置
JP3517406B2 (ja) 2001-10-10 2004-04-12 サンテック株式会社 波長可変合分波器及び波長ルーティング装置
US7268927B2 (en) 2002-03-15 2007-09-11 Corning Incorporated Tunable optical filter array and method of use
US6912073B2 (en) 2002-03-15 2005-06-28 Corning Incorporated Optical filter array and method of use
WO2003079069A2 (en) * 2002-03-15 2003-09-25 Corning Incorporated Optical filter array and method of use

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4373782A (en) * 1980-06-03 1983-02-15 Optical Coating Laboratory, Inc. Non-polarizing thin film edge filter
FR2731082B1 (fr) * 1995-02-28 1997-04-04 France Telecom Multiplexeur optique a insertion-extraction utilisant des circulateurs optiques et des reseaux de bragg photoinscrits
US5812291A (en) * 1995-03-22 1998-09-22 Cselt Centro Studi E Laboratori Telecomunicazioni S.P.A. Optical add-drop multiplexer for optical communication networks
US5583683A (en) * 1995-06-15 1996-12-10 Optical Corporation Of America Optical multiplexing device
JPH0933750A (ja) * 1995-07-18 1997-02-07 Nippon Telegr & Teleph Corp <Ntt> 波長多重合分波回路
JP3356365B2 (ja) * 1995-09-19 2002-12-16 ケイディーディーアイ株式会社 光ａｄｍ装置
US5706375A (en) * 1996-09-10 1998-01-06 Jds Fitel Inc. Variable-attenuation tunable optical router
US6020986A (en) * 1997-11-21 2000-02-01 Jds Uniphase Corporation Programmable add-drop module for use in an optical circuit

Also Published As

Publication number Publication date
GB9805245D0 (en) 1998-05-06
GB2326785A (en) 1998-12-30
US6181451B1 (en) 2001-01-30
CN1156097C (zh) 2004-06-30
AU5939298A (en) 1999-01-07
DE69834772D1 (de) 2006-07-20
AU753905B2 (en) 2002-10-31
EP0887964A2 (en) 1998-12-30
CN1204191A (zh) 1999-01-06
GB2326785B (en) 2002-09-04
NO981153D0 (no) 1998-03-16
EP0887964B1 (en) 2006-06-07
JPH1127239A (ja) 1999-01-29
DE69834772T2 (de) 2007-06-14
EP0887964A3 (en) 2004-01-21
GB9713575D0 (en) 1997-09-03

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