SE9701834L - Anordning vid add/drop-nod i ett väglängds- multiplexerat optiskt kommunikationssystem. - Google Patents
Anordning vid add/drop-nod i ett väglängds- multiplexerat optiskt kommunikationssystem.Info
- Publication number
- SE9701834L SE9701834L SE9701834A SE9701834A SE9701834L SE 9701834 L SE9701834 L SE 9701834L SE 9701834 A SE9701834 A SE 9701834A SE 9701834 A SE9701834 A SE 9701834A SE 9701834 L SE9701834 L SE 9701834L
- Authority
- SE
- Sweden
- Prior art keywords
- node
- couplers
- power
- add
- demultiplexers
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
- H04B10/07955—Monitoring or measuring power
-
- 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
- H04J14/0204—Broadcast and select arrangements, e.g. with an optical splitter at the input before adding or dropping
-
- 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
- H04J14/0205—Select and combine arrangements, e.g. with an optical combiner at the output after adding or dropping
-
- 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
- H04J14/0287—Protection in WDM systems
- H04J14/0293—Optical channel protection
- H04J14/0294—Dedicated protection at the optical channel (1+1)
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0278—WDM optical network architectures
- H04J14/0283—WDM ring architectures
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
- H04Q2011/0007—Construction
- H04Q2011/0011—Construction using wavelength conversion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
- H04Q2011/0007—Construction
- H04Q2011/0013—Construction using gating amplifiers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
- H04Q2011/0007—Construction
- H04Q2011/0015—Construction using splitting combining
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
- H04Q2011/0037—Operation
- H04Q2011/0041—Optical control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0079—Operation or maintenance aspects
- H04Q2011/0083—Testing; Monitoring
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optical Communication System (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9701834A SE509807C2 (sv) | 1997-05-15 | 1997-05-15 | Anordning vid add/drop-nod i ett väglängds- multiplexerat optiskt kommunikationssystem. |
PCT/SE1998/000905 WO1998052314A2 (en) | 1997-05-15 | 1998-05-15 | An add and drop node for optical communication systems |
AU75606/98A AU7560698A (en) | 1997-05-15 | 1998-05-15 | An add and drop node for optical communication systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9701834A SE509807C2 (sv) | 1997-05-15 | 1997-05-15 | Anordning vid add/drop-nod i ett väglängds- multiplexerat optiskt kommunikationssystem. |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9701834D0 SE9701834D0 (sv) | 1997-05-15 |
SE9701834L true SE9701834L (sv) | 1998-11-16 |
SE509807C2 SE509807C2 (sv) | 1999-03-08 |
Family
ID=20406970
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9701834A SE509807C2 (sv) | 1997-05-15 | 1997-05-15 | Anordning vid add/drop-nod i ett väglängds- multiplexerat optiskt kommunikationssystem. |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU7560698A (sv) |
SE (1) | SE509807C2 (sv) |
WO (1) | WO1998052314A2 (sv) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE516316C2 (sv) | 1999-03-18 | 2001-12-17 | Cisco Systems Sweden Ab | Mottagartransponder för skyddade nät |
US6757098B2 (en) * | 1999-04-15 | 2004-06-29 | Nortel Network Limited | Highly scalable modular optical amplifier based subsystem |
US6236499B1 (en) * | 1999-04-15 | 2001-05-22 | Nortel Networks Limited | Highly scalable modular optical amplifier based subsystem |
US6748175B1 (en) | 1999-06-15 | 2004-06-08 | Lucent Technologies Inc. | Optical ring network having enhanced security and reduced loss |
EP1143646A1 (en) * | 2000-04-05 | 2001-10-10 | Telefonaktiebolaget Lm Ericsson | Optical communication system with two parallel transmission paths |
US7076163B2 (en) * | 2002-03-27 | 2006-07-11 | Fujitsu Limited | Method and system for testing during operation of an open ring optical network |
US7231148B2 (en) | 2002-03-28 | 2007-06-12 | Fujitsu Limited | Flexible open ring optical network and method |
US7116905B2 (en) * | 2002-03-27 | 2006-10-03 | Fujitsu Limited | Method and system for control signaling in an open ring optical network |
US7184663B2 (en) | 2002-05-29 | 2007-02-27 | Fujitsu Limited | Optical ring network with hub node and method |
US7283740B2 (en) | 2002-05-29 | 2007-10-16 | Fujitsu Limited | Optical ring network with optical subnets and method |
US7283739B2 (en) | 2002-05-29 | 2007-10-16 | Fujitsu Limited | Multiple subnets in an optical ring network and method |
US7321729B2 (en) * | 2003-05-29 | 2008-01-22 | Fujitsu Limited | Optical ring network with selective signal regeneration and wavelength conversion |
US7483637B2 (en) | 2003-11-26 | 2009-01-27 | Fujitsu Limited | Optical ring network with optical subnets and method |
US20050286896A1 (en) * | 2004-06-29 | 2005-12-29 | Fujitsu Limited | Hybrid optical ring network |
US7120360B2 (en) | 2005-01-06 | 2006-10-10 | Fujitsu Limited | System and method for protecting traffic in a hubbed optical ring network |
GB2427518A (en) * | 2005-06-20 | 2006-12-27 | Marconi Comm Ltd | Optical add-drop multiplexer in which data input at a plurality of different ports is dropped using a common bank of transponders |
EP3249834B1 (en) * | 2015-04-16 | 2019-08-14 | Huawei Technologies Co., Ltd. | Add/drop multiplexer and method for processing signal in add/drop multiplexer |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU1234092A (en) * | 1990-12-17 | 1992-07-22 | Aster Corporation | Optical communication monitoring and control |
EP0668674B1 (en) * | 1994-02-17 | 2003-05-21 | Kabushiki Kaisha Toshiba | Optical wavelength division multiplexed network system |
GB9516017D0 (en) * | 1995-08-04 | 1995-10-04 | Stc Submarine Systems Ltd | Optical level control in wavelength add-drop multiplexing branching units |
IT1277204B1 (it) * | 1995-10-19 | 1997-11-05 | Pirelli S P A Ora Pirelli Cavi | Rete di comunicazione ottica trasparente ad anello autoprotetto |
-
1997
- 1997-05-15 SE SE9701834A patent/SE509807C2/sv not_active IP Right Cessation
-
1998
- 1998-05-15 AU AU75606/98A patent/AU7560698A/en not_active Abandoned
- 1998-05-15 WO PCT/SE1998/000905 patent/WO1998052314A2/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
SE509807C2 (sv) | 1999-03-08 |
SE9701834D0 (sv) | 1997-05-15 |
WO1998052314A2 (en) | 1998-11-19 |
WO1998052314A3 (en) | 1999-02-18 |
AU7560698A (en) | 1998-12-08 |
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