FI972023A - Optisk add/drop-anordning - Google Patents
Optisk add/drop-anordning Download PDFInfo
- Publication number
- FI972023A FI972023A FI972023A FI972023A FI972023A FI 972023 A FI972023 A FI 972023A FI 972023 A FI972023 A FI 972023A FI 972023 A FI972023 A FI 972023A FI 972023 A FI972023 A FI 972023A
- Authority
- FI
- Finland
- Prior art keywords
- optical add
- drop device
- drop
- add
- optical
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title 1
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)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI972023A FI112569B (sv) | 1997-05-13 | 1997-05-13 | Optisk add/drop-anordning |
DE69820609T DE69820609T2 (de) | 1997-05-13 | 1998-05-13 | Optische einfugungs/ausblendungsvorrichtung |
AU74343/98A AU7434398A (en) | 1997-05-13 | 1998-05-13 | Optical add/drop device |
PCT/FI1998/000407 WO1998052306A2 (en) | 1997-05-13 | 1998-05-13 | Optical add/drop device |
EP98921517A EP0981870B1 (en) | 1997-05-13 | 1998-05-13 | Optical add/drop device |
US09/435,747 US6323975B1 (en) | 1997-05-13 | 1999-11-08 | Optical add/drop device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI972023 | 1997-05-13 | ||
FI972023A FI112569B (sv) | 1997-05-13 | 1997-05-13 | Optisk add/drop-anordning |
Publications (3)
Publication Number | Publication Date |
---|---|
FI972023A0 FI972023A0 (fi) | 1997-05-13 |
FI972023A true FI972023A (sv) | 1998-11-14 |
FI112569B FI112569B (sv) | 2003-12-15 |
Family
ID=8548839
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI972023A FI112569B (sv) | 1997-05-13 | 1997-05-13 | Optisk add/drop-anordning |
Country Status (6)
Country | Link |
---|---|
US (1) | US6323975B1 (sv) |
EP (1) | EP0981870B1 (sv) |
AU (1) | AU7434398A (sv) |
DE (1) | DE69820609T2 (sv) |
FI (1) | FI112569B (sv) |
WO (1) | WO1998052306A2 (sv) |
Families Citing this family (25)
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 |
AU7572500A (en) | 1999-08-23 | 2001-03-19 | 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 |
US6519384B2 (en) | 2000-08-30 | 2003-02-11 | Telefonaktiebolaget Lm Ericsson (Publ) | Optical communication network |
EP1185017A1 (en) * | 2000-08-30 | 2002-03-06 | Telefonaktiebolaget Lm Ericsson | An optical communication network |
EP1185018A1 (en) * | 2000-08-30 | 2002-03-06 | Telefonaktiebolaget Lm Ericsson | Optical communication system |
US7110673B2 (en) | 2000-08-30 | 2006-09-19 | Telefonaktiebolaget Lm Ericsson (Publ) | Optical communication system |
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 |
JP2004518380A (ja) * | 2001-01-31 | 2004-06-17 | テレフオンアクチーボラゲツト エル エム エリクソン(パブル) | 光ネットワーク内で伝送するための方法およびシステム |
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 |
AU2003265369A1 (en) * | 2002-08-06 | 2004-02-23 | Blue Flame Data, 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 |
JP3850858B2 (ja) * | 2003-04-15 | 2006-11-29 | 富士通株式会社 | 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)
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 |
DE69534360D1 (de) * | 1994-02-17 | 2005-09-08 | Toshiba Kk | Zentrale Quelle von mehreren Wellenlängen |
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 |
WO1997008574A1 (en) * | 1995-08-29 | 1997-03-06 | Arroyo Optics, Inc. | Wavelength selective grating assisted 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 |
-
1997
- 1997-05-13 FI FI972023A patent/FI112569B/sv active
-
1998
- 1998-05-13 DE DE69820609T patent/DE69820609T2/de not_active Expired - Lifetime
- 1998-05-13 WO PCT/FI1998/000407 patent/WO1998052306A2/en active IP Right Grant
- 1998-05-13 EP EP98921517A patent/EP0981870B1/en not_active Expired - Lifetime
- 1998-05-13 AU AU74343/98A patent/AU7434398A/en not_active Abandoned
-
1999
- 1999-11-08 US US09/435,747 patent/US6323975B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US6323975B1 (en) | 2001-11-27 |
FI972023A0 (fi) | 1997-05-13 |
WO1998052306A3 (en) | 1999-02-04 |
EP0981870A2 (en) | 2000-03-01 |
DE69820609D1 (de) | 2004-01-29 |
WO1998052306A2 (en) | 1998-11-19 |
EP0981870B1 (en) | 2003-12-17 |
AU7434398A (en) | 1998-12-08 |
FI112569B (sv) | 2003-12-15 |
DE69820609T2 (de) | 2004-09-30 |
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