GB9625438D0 - Optical add/drop circuit having a fiber grating - Google Patents

Optical add/drop circuit having a fiber grating

Info

Publication number
GB9625438D0
GB9625438D0 GBGB9625438.8A GB9625438A GB9625438D0 GB 9625438 D0 GB9625438 D0 GB 9625438D0 GB 9625438 A GB9625438 A GB 9625438A GB 9625438 D0 GB9625438 D0 GB 9625438D0
Authority
GB
United Kingdom
Prior art keywords
fiber grating
optical add
drop circuit
drop
circuit
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.)
Withdrawn
Application number
GBGB9625438.8A
Other versions
GB2315380A (en
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of GB9625438D0 publication Critical patent/GB9625438D0/en
Publication of GB2315380A publication Critical patent/GB2315380A/en
Withdrawn legal-status Critical Current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
    • G02B6/26—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
    • G02B6/29304—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
    • G02B6/2932—With a cascade of diffractive elements or of diffraction operations comprising a directional router, e.g. directional coupler, circulator
    • 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
    • H04J14/0202—Arrangements therefor
    • H04J14/0206—Express channels arrangements
    • 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
    • H04J14/0202—Arrangements therefor
    • H04J14/0213—Groups of channels or wave bands arrangements
    • 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
    • G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
    • G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
    • 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
    • H04J14/0202—Arrangements therefor
    • H04J14/0209—Multi-stage arrangements, e.g. by cascading multiplexers or demultiplexers
    • 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
    • H04J14/0215—Architecture aspects
    • H04J14/0217—Multi-degree architectures, e.g. having a connection degree greater than two
GB9625438A 1996-07-16 1996-12-06 Optical add/drop circuit using fibre gratings Withdrawn GB2315380A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8186156A JPH1032562A (en) 1996-07-16 1996-07-16 Optical add/drop circuit

Publications (2)

Publication Number Publication Date
GB9625438D0 true GB9625438D0 (en) 1997-01-22
GB2315380A GB2315380A (en) 1998-01-28

Family

ID=16183368

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9625438A Withdrawn GB2315380A (en) 1996-07-16 1996-12-06 Optical add/drop circuit using fibre gratings

Country Status (3)

Country Link
JP (1) JPH1032562A (en)
DE (1) DE19700682C2 (en)
GB (1) GB2315380A (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3329655B2 (en) * 1996-03-04 2002-09-30 ケイディーディーアイ株式会社 Optical ADM device
US5982518A (en) * 1996-03-27 1999-11-09 Ciena Corporation Optical add-drop multiplexers compatible with very dense WDM optical communication systems
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
KR0183945B1 (en) * 1996-11-28 1999-05-15 삼성전자주식회사 Optical demultiplexer
GB2354895B (en) * 1996-12-30 2001-06-13 Furukawa Electric Europ Ltd Isolated multiple grating system for filtering requirements
US6631018B1 (en) 1997-08-27 2003-10-07 Nortel Networks Limited WDM optical network with passive pass-through at each node
AU2585999A (en) * 1998-02-05 1999-08-23 Ciena Corporation Wdm ring having an optical service channel
US6351581B1 (en) 1998-03-17 2002-02-26 Agere Systems Optoelectronics Guardian Corp. Optical add-drop multiplexer having an interferometer structure
US6512613B1 (en) * 1998-03-24 2003-01-28 Sumitomo Electric Industries, Ltd. WDM transmission repeater, WDM transmission system and WDM transmission method
US6169616B1 (en) * 1998-06-04 2001-01-02 Avanex Corporation Optical and programmable fiber optic wavelength add/drop system
KR100400362B1 (en) 1998-08-04 2003-11-14 삼성전자주식회사 Apparatus for optical add drop multiplexing and WDM optical network comprising it
FI990238A (en) 1999-02-08 2000-08-09 Nokia Networks Oy OptiskADd / drop device
GB2348557B (en) 1999-04-01 2002-03-13 Marconi Comm Ltd Communications system
US6577415B1 (en) * 1999-06-15 2003-06-10 Lucent Technologies Inc. Optical add-drop module with low loss and high isolation
FR2800949B1 (en) * 1999-11-08 2002-04-12 Cit Alcatel CHANNEL EXTRACTION METHOD FOR WAVELENGTH MULTIPLEX OPTICAL TRANSMISSION SYSTEM AND DEVICES APPLYING THE SAME
WO2003009508A1 (en) * 2001-07-19 2003-01-30 Novx Systems Inc. Optical add/drop switch
KR20030017862A (en) * 2001-08-23 2003-03-04 주식회사데이콤 Wavelength tunable optical drop and add system
GB0126168D0 (en) 2001-10-31 2002-01-02 Cit Alcatel A branching unit
KR100965842B1 (en) * 2008-07-15 2010-06-28 전자부품연구원 Optical add-drop multiplexer for multi-channel

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2161612B (en) * 1984-07-11 1988-02-03 Stc Plc Optical fibre transmission systems
GB2265059B (en) * 1992-03-04 1995-07-26 Northern Telecom Ltd Optical regenerators
IT1265018B1 (en) * 1993-08-10 1996-10-17 Cselt Centro Studi Lab Telecom DEVICE FOR EXTRACTION AND REINSERTION OF AN OPTICAL CARRIER IN OPTICAL COMMUNICATION NETWORKS.
IT1265017B1 (en) * 1993-08-10 1996-10-17 Cselt Centro Studi Lab Telecom WAVE LENGTH SELECTIVE OPTICAL SWITCH.
GB9423105D0 (en) * 1994-11-16 1995-01-04 Northern Telecom Ltd Optical wave grating filter
FR2731082B1 (en) * 1995-02-28 1997-04-04 France Telecom OPTICAL INSERTION-EXTRACTION MULTIPLEXER USING OPTICAL CIRCULATORS AND PHOTO-WRITTEN BRAGG ARRAYS
US5532864A (en) * 1995-06-01 1996-07-02 Ciena Corporation Optical monitoring channel for wavelength division multiplexed optical communication system
FR2736480B1 (en) * 1995-07-05 1997-09-19 France Telecom OPTICAL SIGN COLORING DEVICE
DE69620414T2 (en) * 1995-08-04 2002-11-14 Alcatel Sa OPTICAL INSERT AND DISCONNECT MULTIPLEXER

Also Published As

Publication number Publication date
DE19700682C2 (en) 2000-02-24
GB2315380A (en) 1998-01-28
DE19700682A1 (en) 1998-01-22
JPH1032562A (en) 1998-02-03

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)