DE69820609D1 - Optische einfugungs/ausblendungsvorrichtung - Google Patents

Optische einfugungs/ausblendungsvorrichtung

Info

Publication number
DE69820609D1
DE69820609D1 DE69820609T DE69820609T DE69820609D1 DE 69820609 D1 DE69820609 D1 DE 69820609D1 DE 69820609 T DE69820609 T DE 69820609T DE 69820609 T DE69820609 T DE 69820609T DE 69820609 D1 DE69820609 D1 DE 69820609D1
Authority
DE
Germany
Prior art keywords
optical insert
hidden device
hidden
insert
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 - Lifetime
Application number
DE69820609T
Other languages
English (en)
Other versions
DE69820609T2 (de
Inventor
Jouko Kurki
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.)
Schofield Technologies LLC
Original Assignee
Nokia Oyj
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 Nokia Oyj filed Critical Nokia Oyj
Application granted granted Critical
Publication of DE69820609D1 publication Critical patent/DE69820609D1/de
Publication of DE69820609T2 publication Critical patent/DE69820609T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H04J14/0202—Arrangements therefor
    • H04J14/021—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]
    • 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
    • H04J14/0219—Modular or upgradable architectures

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
DE69820609T 1997-05-13 1998-05-13 Optische einfugungs/ausblendungsvorrichtung Expired - Lifetime DE69820609T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI972023A FI112569B (fi) 1997-05-13 1997-05-13 Optinen add/drop-laite
FI972023 1997-05-13
PCT/FI1998/000407 WO1998052306A2 (en) 1997-05-13 1998-05-13 Optical add/drop device

Publications (2)

Publication Number Publication Date
DE69820609D1 true DE69820609D1 (de) 2004-01-29
DE69820609T2 DE69820609T2 (de) 2004-09-30

Family

ID=8548839

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69820609T Expired - Lifetime DE69820609T2 (de) 1997-05-13 1998-05-13 Optische einfugungs/ausblendungsvorrichtung

Country Status (6)

Country Link
US (1) US6323975B1 (de)
EP (1) EP0981870B1 (de)
AU (1) AU7434398A (de)
DE (1) DE69820609T2 (de)
FI (1) FI112569B (de)
WO (1) WO1998052306A2 (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100231697B1 (ko) * 1997-09-04 2000-01-15 정선종 단일링에 기반한 댁내망 장치
US6243175B1 (en) * 1998-08-06 2001-06-05 Ciena Corporation WDM optical communication system having reduced loss and cross-talk
FR2782588B1 (fr) * 1998-08-24 2002-12-20 Alsthom Cge Alkatel Dispositif d'insertion/extraction de signaux optiques multiplexes en longueur d'onde
CA2289320A1 (en) * 1998-12-10 2000-06-10 Nortel Networks Corporation Integrating optical adm filters
CA2346973A1 (en) 1999-08-23 2001-03-01 Optical Coating Laboratory, Inc. Hybrid optical add/drop multiplexing devices
GB2360890A (en) * 2000-03-02 2001-10-03 Ilotron Ltd Reconfigurable optical add/drop multiplexer
JP2001285323A (ja) * 2000-04-03 2001-10-12 Hitachi Ltd 光ネットワーク
JP4114308B2 (ja) * 2000-08-03 2008-07-09 沖電気工業株式会社 データ信号転送方法
US7110673B2 (en) 2000-08-30 2006-09-19 Telefonaktiebolaget Lm Ericsson (Publ) Optical communication system
EP1185017A1 (de) * 2000-08-30 2002-03-06 Telefonaktiebolaget Lm Ericsson Optisches Kommunikationsnetzwerk
EP1185018A1 (de) * 2000-08-30 2002-03-06 Telefonaktiebolaget Lm Ericsson Optisches Kommunikationssystem
US6519384B2 (en) 2000-08-30 2003-02-11 Telefonaktiebolaget Lm Ericsson (Publ) Optical communication network
DE10046585B4 (de) * 2000-09-20 2007-10-25 Siemens Ag Modular erweiterbares optisches ADD-DROP-Modul
US6567579B2 (en) * 2000-12-15 2003-05-20 Alcatel Multi-channel, multi-mode redundant optical local loop having a bus topology
US6731830B2 (en) 2001-01-05 2004-05-04 Redfern Broadband Networks, Inc. Asymmetric compatible network element
EP1356613B1 (de) * 2001-01-31 2005-10-05 Telefonaktiebolaget LM Ericsson (publ) Verfahren und anordnung zur übertragung in einem optischen netzwerk
US6847787B2 (en) * 2001-09-07 2005-01-25 Redfern Broadband Networks Inc. WDM network node module
US7260655B1 (en) * 2001-12-03 2007-08-21 Cheetah Omni, Llc Optical routing using star switching fabric with reduced effective switching time
US7054562B1 (en) 2002-02-01 2006-05-30 Ciena Corporation Method and system for suppressing ASE on a WDM network
US7596505B2 (en) * 2002-08-06 2009-09-29 True Choice Solutions, Inc. System to quantify consumer preferences
JP3880994B2 (ja) * 2003-03-04 2007-02-14 富士通株式会社 コンテンツ情報の配信方法並びに配信システムおよびそのセンタ局
GB2425420B (en) * 2003-04-15 2007-02-14 Fujitsu Ltd Optical transmission device
WO2004093352A1 (ja) * 2003-04-15 2004-10-28 Fujitsu Limited 光伝送装置
JP4425105B2 (ja) * 2004-09-30 2010-03-03 富士通株式会社 光ネットワークおよび光分岐挿入装置
JP6015365B2 (ja) * 2012-11-06 2016-10-26 富士通株式会社 伝送装置及び伝送方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5500756A (en) * 1992-02-28 1996-03-19 Hitachi, Ltd. Optical fiber transmission system and supervision method of the same
US5663989A (en) 1993-10-28 1997-09-02 Plessey Semiconductors Limited Control arrangements for digital radio receivers
DE4337089C2 (de) * 1993-10-29 2003-09-25 Siemens Ag Optisches, transparentes Ringnetz mit wahlweiser Durchschaltung oder Aus- und Einkopplung von Signalen in den Ringknoten
EP0668674B1 (de) * 1994-02-17 2003-05-21 Kabushiki Kaisha Toshiba Optisches Wellenlängenmultiplex Netzwerk
US5657406A (en) * 1994-09-23 1997-08-12 United Technologies Corporation Efficient optical wavelength multiplexer/de-multiplexer
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
FR2734437B1 (fr) * 1995-05-17 1997-06-13 Sutter Alain Reseau en anneau de transmission d'informations multiplexees en longueur d'onde
SE506748C2 (sv) * 1995-06-26 1998-02-09 Ericsson Telefon Ab L M Förfarande och anordning för att borttaga och addera kanaler i en optisk multiplexor
US5805751A (en) * 1995-08-29 1998-09-08 Arroyo Optics, Inc. Wavelength selective optical couplers
FR2746409B1 (fr) 1996-03-19 1998-04-17 Inst Francais Du Petrole Procede de sulfuration de corps gras insatures par le soufre elementaire en presence de composes amines
US5914794A (en) * 1996-12-31 1999-06-22 Mci Communications Corporation Method of and apparatus for detecting and reporting faults in an all-optical communications system
US5915051A (en) * 1997-01-21 1999-06-22 Massascusetts Institute Of Technology Wavelength-selective optical add/drop switch
US5889899A (en) * 1997-10-15 1999-03-30 Lucent Technologies Inc. Article comprising a Bragg reflective Mach-Zehnder filter of reduced coupled dependence

Also Published As

Publication number Publication date
US6323975B1 (en) 2001-11-27
FI972023A0 (fi) 1997-05-13
DE69820609T2 (de) 2004-09-30
AU7434398A (en) 1998-12-08
FI972023A (fi) 1998-11-14
EP0981870A2 (de) 2000-03-01
WO1998052306A2 (en) 1998-11-19
FI112569B (fi) 2003-12-15
WO1998052306A3 (en) 1999-02-04
EP0981870B1 (de) 2003-12-17

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: SCHOFIELD TECHNOLOGIES LLC, WILMINGTON, DEL., US