CA2245403A1 - Wdm optical network with passive pass-through at each node - Google Patents
Wdm optical network with passive pass-through at each nodeInfo
- Publication number
- CA2245403A1 CA2245403A1 CA002245403A CA2245403A CA2245403A1 CA 2245403 A1 CA2245403 A1 CA 2245403A1 CA 002245403 A CA002245403 A CA 002245403A CA 2245403 A CA2245403 A CA 2245403A CA 2245403 A1 CA2245403 A1 CA 2245403A1
- Authority
- CA
- Canada
- Prior art keywords
- node
- transmission medium
- band
- network
- optical network
- 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.)
- Granted
Links
Classifications
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- 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
- H04J14/0289—Optical multiplex section protection
- H04J14/0291—Shared protection at the optical multiplex section (1:1, n:m)
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- 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
- H04J14/0209—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]
- H04J14/0212—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM] using optical switches or wavelength selective switches [WSS]
-
- 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
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
- H04J14/0241—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
- H04J14/0241—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
- H04J14/0242—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON
- H04J14/0245—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for downstream transmission, e.g. optical line terminal [OLT] to ONU
- H04J14/0246—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for downstream transmission, e.g. optical line terminal [OLT] to ONU using one wavelength per ONU
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
- H04J14/0241—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
- H04J14/0242—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON
- H04J14/0249—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for upstream transmission, e.g. ONU-to-OLT or ONU-to-ONU
- H04J14/025—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for upstream transmission, e.g. ONU-to-OLT or ONU-to-ONU using one wavelength per ONU, e.g. for transmissions from-ONU-to-OLT or from-ONU-to-ONU
-
- 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
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0287—Protection in WDM systems
- H04J14/0289—Optical multiplex section protection
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0226—Fixed carrier allocation, e.g. according to service
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
-
- 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
- H04J14/028—WDM bus architectures
-
- 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
- H04J14/0282—WDM tree architectures
-
- 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
- H04J14/0284—WDM mesh architectures
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0298—Wavelength-division multiplex systems with sub-carrier multiplexing [SCM]
Abstract
A communications network has a plurality of nodes interconnected by an optical transmission medium. The transmission medium is capable of a carrying a plurality of wavelengths organized into bands. A filter at each node for drops a band associated therewith and passively forwards other bands through the transmission medium. A device is provided at each node for adding a band to the transmission medium. Communication can be established directly between a pair of nodes in the network sharing a common band without the active intervention of any intervening node. This allows the network to be protocol independent. Also, the low losses incurred by the passive filters permit relatively long path lengths without optical amplification.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002412276A CA2412276C (en) | 1997-08-27 | 1998-08-20 | Wdm optical network with passive pass-through at each node |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/917,784 | 1997-08-27 | ||
US08/917,784 US6631018B1 (en) | 1997-08-27 | 1997-08-27 | WDM optical network with passive pass-through at each node |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002412276A Division CA2412276C (en) | 1997-08-27 | 1998-08-20 | Wdm optical network with passive pass-through at each node |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2245403A1 true CA2245403A1 (en) | 1999-02-27 |
CA2245403C CA2245403C (en) | 2003-01-28 |
Family
ID=25439319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002245403A Expired - Lifetime CA2245403C (en) | 1997-08-27 | 1998-08-20 | Wdm optical network with passive pass-through at each node |
Country Status (5)
Country | Link |
---|---|
US (12) | US6631018B1 (en) |
EP (1) | EP0905936A3 (en) |
JP (1) | JP4240602B2 (en) |
AU (2) | AU751527B2 (en) |
CA (1) | CA2245403C (en) |
Families Citing this family (304)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6166838A (en) | 1997-03-24 | 2000-12-26 | Chorum Technologies, Inc. | Optical add/drop wavelength switch |
US6545783B1 (en) * | 1996-10-29 | 2003-04-08 | Chorum Technologies Lp | Optical wavelength add/drop multiplexer |
US6285478B1 (en) | 1998-03-26 | 2001-09-04 | Chorum Technologies Lp | Programmable optical add/drop device |
US6016307A (en) | 1996-10-31 | 2000-01-18 | Connect One, Inc. | Multi-protocol telecommunications routing optimization |
US6333799B1 (en) * | 1997-01-07 | 2001-12-25 | Tellium, Inc. | Hybrid wavelength-interchanging cross-connect |
JP3080219B2 (en) * | 1997-01-17 | 2000-08-21 | 日本電気株式会社 | Wavelength multiplexing method, wavelength multiplexing transmission system, and optical path cross connect system |
US6839514B1 (en) * | 1999-09-29 | 2005-01-04 | Ciena Corporation | Method and apparatus for operation, protection, and restoration of heterogeneous optical communication networks |
US5898801A (en) | 1998-01-29 | 1999-04-27 | Lockheed Martin Corporation | Optical transport system |
JP3102379B2 (en) * | 1997-04-30 | 2000-10-23 | 日本電気株式会社 | Monitoring and control method for WDM optical transmission system |
KR100226438B1 (en) * | 1997-08-26 | 1999-10-15 | 이계철 | Atm switch network with expansible optical ring |
US6631018B1 (en) | 1997-08-27 | 2003-10-07 | Nortel Networks Limited | WDM optical network with passive pass-through at each node |
US6281997B1 (en) * | 1997-09-11 | 2001-08-28 | Ciena Corporation | Dense WDM optical multiplexer and demultiplexer |
US6243179B1 (en) * | 1997-10-31 | 2001-06-05 | Agere Systems Optoelectronics Guardian Corp. | Banded add drop device |
US6657952B1 (en) * | 1997-11-28 | 2003-12-02 | Nec Corporation | Ring network for sharing protection resource by working communication paths |
US6094246A (en) | 1998-01-06 | 2000-07-25 | Chorum Technologies | Acute twist nematic liquid crystal electro-optic modulator for use in an infrared optical communication system having extinction ratio of -25db |
US6169616B1 (en) * | 1998-06-04 | 2001-01-02 | Avanex Corporation | Optical and programmable fiber optic wavelength add/drop system |
US6426815B1 (en) * | 1998-06-19 | 2002-07-30 | Ciena Corporation | WDM ring transmission system having two hubs |
US6134358A (en) | 1998-08-27 | 2000-10-17 | Chorum Technologies Inc. | N x N switch array with reduced components |
JP3859369B2 (en) * | 1998-09-18 | 2006-12-20 | 株式会社東芝 | Message relay apparatus and method |
FR2784827B1 (en) * | 1998-10-15 | 2002-12-20 | Cit Alcatel | WAVELENGTH MULTIPLEX OPTICAL TRANSMISSION METHOD AND SYSTEM WITH CHANNEL EXTRACTION AND INSERTION |
US6272154B1 (en) | 1998-10-30 | 2001-08-07 | Tellium Inc. | Reconfigurable multiwavelength network elements |
US20050002671A1 (en) * | 1998-11-17 | 2005-01-06 | Corvis Corporation | Wavelength division multiplexed optical transmission systems, apparatuses, and methods |
EP1835648B1 (en) * | 1998-12-08 | 2010-02-10 | Nippon Telegraph and Telephone Corporation | Optical communication network |
US6721508B1 (en) * | 1998-12-14 | 2004-04-13 | Tellabs Operations Inc. | Optical line terminal arrangement, apparatus and methods |
DE19906813C2 (en) * | 1999-02-18 | 2001-06-21 | Siemens Ag | Add-drop multiplexer and optical wavelength division multiplex transmission system |
SE516316C2 (en) * | 1999-03-18 | 2001-12-17 | Cisco Systems Sweden Ab | Receiver transponder for protected networks |
US6219474B1 (en) * | 1999-03-24 | 2001-04-17 | E-Tek Dynamics | Configurable optical add/drop device |
CA2300534A1 (en) * | 1999-04-13 | 2000-10-13 | Nortel Networks Corporation | Bidirectional optical networks |
JP3586586B2 (en) * | 1999-05-24 | 2004-11-10 | 日本電気株式会社 | Light wave ring system |
GB9912290D0 (en) * | 1999-05-27 | 1999-07-28 | Marconi Comm Ltd | Network interconnections |
CA2273522C (en) * | 1999-06-01 | 2009-03-24 | Nortel Networks Corporation | High speed ethernet based on sonet technology |
US6519060B1 (en) | 1999-06-04 | 2003-02-11 | Chorum Technologies Lp | Synchronous optical network in frequency domain |
US6728486B1 (en) | 1999-06-09 | 2004-04-27 | Alcatel Communications, Inc. | Communication system and method with optical management bus |
US6687463B1 (en) | 1999-06-09 | 2004-02-03 | Alcatel Communications, Inc. | Communication system and method with optical banding |
US6968130B1 (en) * | 1999-09-07 | 2005-11-22 | Nokia Corporation | System and method for fully utilizing available optical transmission spectrum in optical networks |
US6718139B1 (en) * | 1999-09-13 | 2004-04-06 | Ciena Corporation | Optical fiber ring communication system |
US6735393B1 (en) * | 1999-09-24 | 2004-05-11 | Telenor, As | All-optical network with passive wavelength routers |
SE9903521L (en) * | 1999-09-27 | 2001-03-28 | Queyton Systems Ab | Connection of an ADD / DROP NOD |
DE19959815A1 (en) * | 1999-12-11 | 2001-06-21 | Alcatel Sa | Synchronous digital message transmission system |
DE19959813B4 (en) * | 1999-12-11 | 2004-02-05 | Alcatel | Synchronous digital message transmission system |
US7099578B1 (en) | 1999-12-16 | 2006-08-29 | Tellabs Operations Inc. | 1:N protection in an optical terminal |
US6396609B1 (en) | 1999-12-20 | 2002-05-28 | Chorum Technologies, Lp | Dispersion compensation for optical systems |
JP2001197005A (en) * | 2000-01-13 | 2001-07-19 | Sumitomo Electric Ind Ltd | System and method for optical transmission |
US6862380B2 (en) * | 2000-02-04 | 2005-03-01 | At&T Corp. | Transparent optical switch |
US20010046350A1 (en) * | 2000-02-25 | 2001-11-29 | Tedesco James M. | Configurable Wavelength routing device |
JP2001285323A (en) | 2000-04-03 | 2001-10-12 | Hitachi Ltd | Optical network |
US6559992B2 (en) | 2000-03-27 | 2003-05-06 | Chorum Technologies Lp | Adjustable chromatic dispersion compensation |
US6587237B1 (en) * | 2000-04-13 | 2003-07-01 | Sprint Communications Company L.P. | Metropolitan area network using low insertion loss optical add-drop multiplexers |
US6782204B1 (en) * | 2000-04-24 | 2004-08-24 | Mahi Networks | Network with shared optical sources |
US6587238B1 (en) * | 2000-04-24 | 2003-07-01 | Sprint Communications Company L.P. | Transmitting an optical signal with corresponding WDM and TDM channels |
US7173912B2 (en) * | 2000-05-05 | 2007-02-06 | Fujitsu Limited | Method and system for modeling and advertising asymmetric topology of a node in a transport network |
US20020021857A1 (en) * | 2000-05-05 | 2002-02-21 | Eng Kai Y. | Optical packet switch having optical engine and packet engine |
US6429974B1 (en) * | 2000-05-12 | 2002-08-06 | Mahi Networks | Add-drop multiplexer |
US7120359B2 (en) | 2000-05-22 | 2006-10-10 | Opvista Incorporated | Broadcast and select all optical network |
US7499647B2 (en) * | 2000-05-22 | 2009-03-03 | Opvista Incorporated | Fully protected broadcast and select all optical network |
KR100334774B1 (en) * | 2000-05-24 | 2002-05-03 | 윤종용 | Bit rate transducer with self-healing in optical transmitting system |
EP1158712A1 (en) * | 2000-05-25 | 2001-11-28 | Lucent Technologies Inc. | Optical communication network architectures having reduced loss |
US7061979B1 (en) | 2000-05-26 | 2006-06-13 | Ciena Corporation | System and method for determining the data rate of a digital data stream |
US6848006B1 (en) * | 2000-05-30 | 2005-01-25 | Nortel Networks Limited | Ring-mesh networks |
US6885822B1 (en) * | 2000-06-06 | 2005-04-26 | Ciena Corporation | Wavelength and filter arrangement for WDM networks |
CA2414043A1 (en) | 2000-06-22 | 2001-12-27 | Tellabs Operations Inc. | Shared optical ring protection in a multi-fiber ring |
AU2001271829A1 (en) * | 2000-07-07 | 2002-01-21 | Sycamore Networks, Inc. | Bi-directional wavelength switched ring optical protection switching wavelength assignment algorithm |
EP1346499A4 (en) * | 2000-07-10 | 2006-08-23 | Victor Yeeman Lo | A system and method for increasing channel capacity of fiber-optic communication networks |
DE10036709B4 (en) * | 2000-07-27 | 2006-07-06 | Siemens Ag | Optical network node with add-drop or cross-connect functionality and associated procedures |
US20030142678A1 (en) * | 2000-07-28 | 2003-07-31 | Chan Eric L. | Virtual path ring protection method and apparatus |
US6483621B1 (en) * | 2000-07-28 | 2002-11-19 | Terabeam Corporation | Method and apparatus for tone tracking in wireless optical communication systems |
GB0018604D0 (en) * | 2000-07-29 | 2000-09-13 | Marconi Caswell Ltd | Optical fibre wavelength division multiplex network |
ATE361601T1 (en) * | 2000-07-29 | 2007-05-15 | Ericsson Ab | OPTICAL WAVELENGTH MULTIPLEX NETWORK |
US20020036988A1 (en) * | 2000-07-31 | 2002-03-28 | Network Design Tools, Inc. | Method for designing rings in telecommunications network |
AU2001283039A1 (en) * | 2000-08-01 | 2002-02-13 | Luxcore Networks, Inc. | Wavelength selectable optical add-drop multiplexer |
US20020015552A1 (en) * | 2000-08-01 | 2002-02-07 | Link Gayle R. | Optical wavelength router |
US6915078B1 (en) * | 2000-08-15 | 2005-07-05 | Alcatel | Optical frame format |
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 |
KR100342522B1 (en) * | 2000-09-16 | 2002-06-28 | 윤종용 | Bit-rate independent optic-electrical cross-connect device in optical transmitting system |
US20020051269A1 (en) * | 2000-09-29 | 2002-05-02 | Shlomo Margalit | Reconfigurable over-the-air optical data transmission system |
US6925259B2 (en) * | 2000-10-12 | 2005-08-02 | At&T Corp. | MAC protocol for optical packet-switched ring network |
US6288811B1 (en) * | 2000-10-17 | 2001-09-11 | Seneca Networks | WDM optical communication system with channels supporting multiple data formats |
JP4592170B2 (en) * | 2000-10-18 | 2010-12-01 | 株式会社東芝 | Optical transmission equipment |
US6348985B1 (en) | 2000-12-08 | 2002-02-19 | Seneca Networks | Bidirectional WDM optical communication network with data bridging plural optical channels between bidirectional optical waveguides |
US6411412B1 (en) | 2000-12-08 | 2002-06-25 | Seneca Networks | WDM optical communication network with data bridging plural optical channels between optical waveguides |
EP1346515A2 (en) * | 2000-12-15 | 2003-09-24 | Koninklijke Philips Electronics N.V. | Ring network being installed as bus network |
US6722968B2 (en) * | 2000-12-28 | 2004-04-20 | Orion International | Conversion attachment for bench grinder tool rest |
US6731830B2 (en) * | 2001-01-05 | 2004-05-04 | Redfern Broadband Networks, Inc. | Asymmetric compatible network element |
JP4252219B2 (en) * | 2001-01-12 | 2009-04-08 | 富士通株式会社 | Optical node device and system including the device |
US20020118417A1 (en) * | 2001-02-05 | 2002-08-29 | Barry Richard A. | Flexible optical add/drop architecture |
US20020105692A1 (en) * | 2001-02-07 | 2002-08-08 | Richard Lauder | Hierarchical WDM in client-server architecture |
US20020105696A1 (en) * | 2001-02-07 | 2002-08-08 | Ross Halgren | Transparent optical-electronic-optical switch |
US20020109877A1 (en) * | 2001-02-12 | 2002-08-15 | David Funk | Network management architecture |
KR100404518B1 (en) * | 2001-02-22 | 2003-11-05 | 주식회사 에이앤피텔레콤 | Optical Communication System using 4 Wavelength Add/Drop Type Wavelength Division Multiplexing |
US6839753B2 (en) * | 2001-02-23 | 2005-01-04 | Cardiopulmonary Corporation | Network monitoring systems for medical devices |
US6885821B2 (en) * | 2001-02-27 | 2005-04-26 | Avanex Corporation | Full-duplex optical add/drop communications system utilizing central light sources |
US6714575B2 (en) * | 2001-03-05 | 2004-03-30 | Photodigm, Inc. | Optical modulator system |
CA2440230C (en) * | 2001-03-09 | 2011-09-27 | Lumentis Ab | A flexible wdm ring network |
SE523986C2 (en) * | 2001-03-09 | 2004-06-15 | Lumentis Ab | Optical WDM network for flexible connections has only one band drop filter that may drop selected ones of wavelength channels used by WDM transmitters in satellite nodes |
EP1241913A1 (en) * | 2001-03-16 | 2002-09-18 | Alcatel | Optical packet node and optical packet add drop multiplexer |
CN1502183A (en) * | 2001-03-16 | 2004-06-02 | 福图瑞斯有限公司 | Wavelength division multiplexed optical communication system having a reconfigurable optical switch and a tunable backup laster transmitter |
JP3798642B2 (en) * | 2001-03-26 | 2006-07-19 | 富士通株式会社 | WDM network management device |
US20020141453A1 (en) * | 2001-04-03 | 2002-10-03 | Nasir Ghani | Flexible add-drop multiplexer for optical telecommunication networks |
US7340174B2 (en) * | 2001-12-28 | 2008-03-04 | Nortel Networks Limited | Programmable OADM with chromatic dispersion, dispersion slope and amplitude ripple compensation, and method |
JP4167073B2 (en) * | 2001-04-11 | 2008-10-15 | トランスモード ホールディング エービー | Optical add / drop node and optical WDM network |
US6623186B2 (en) * | 2001-04-26 | 2003-09-23 | Occam Networks | Optical ethernet overlay for loop topology network |
US20020163685A1 (en) * | 2001-05-01 | 2002-11-07 | Swanson Eric Arthur | System and method for routing working and protect paths |
US7203429B2 (en) | 2001-05-07 | 2007-04-10 | Tyco Telecommunications (Us) Inc. | Optical transmission system using optical signal processing in terminals for improved system performance |
US7483639B2 (en) * | 2001-05-10 | 2009-01-27 | Fujitsu Limited | Method and system for transmitting information in an optical communication system using distributed amplification |
IL143368A (en) * | 2001-05-24 | 2006-07-05 | Shlomo Orbach | Optical add and drop multiplexer |
US7716271B1 (en) * | 2001-06-05 | 2010-05-11 | Massachusetts Institute Of Technology | Routing and wavelength assignment in optical networks |
US20040100684A1 (en) * | 2001-06-07 | 2004-05-27 | Jones Kevan Peter | Line amplification system for wavelength switched optical networks |
EP1267509A1 (en) * | 2001-06-12 | 2002-12-18 | Alcatel | Method of organizing wavelength channels in a WDM network and optical hub, optical add/drop multiplexer and optical filter bank therefor |
US20020186430A1 (en) * | 2001-06-12 | 2002-12-12 | Ross Halgren | Communications network |
JP3751860B2 (en) * | 2001-06-12 | 2006-03-01 | 株式会社東芝 | Optical node equipment |
US6950609B2 (en) * | 2001-06-22 | 2005-09-27 | Lucent Technologies Inc. | Tunable, multi-port optical add-drop multiplexer |
US20030002103A1 (en) * | 2001-06-29 | 2003-01-02 | Shervin Erfani | Advanced signaling system for switching and control in integrated optical networks |
US6829438B2 (en) * | 2001-07-06 | 2004-12-07 | Tropic Networks Inc. | Add/drop multiplexing in WDM optical networks |
SE520983C2 (en) | 2001-07-16 | 2003-09-16 | Lumentis Ab | Optical filtration |
US7039067B2 (en) * | 2001-07-30 | 2006-05-02 | Dorsal Networks, Inc. | Methods and systems for hybrid interfaces and architectures for optical communications |
US20030039003A1 (en) * | 2001-08-27 | 2003-02-27 | Bogdan Jakobik | Architectural arrangement for core optical networks |
US7133616B2 (en) * | 2001-09-01 | 2006-11-07 | Lucent Technologies Inc. | Wavelength-selective routing using an optical add/drop architecture |
GB0121308D0 (en) | 2001-09-03 | 2001-10-24 | Thomas Swan & Company Ltd | Optical processing |
US7106967B2 (en) * | 2001-09-04 | 2006-09-12 | Doron Handelman | Optical packet switching apparatus and methods |
IL145262A0 (en) * | 2001-09-04 | 2002-06-30 | Lightscape Networks Ltd | Method and system for channel count and power control in optical networks |
US7162155B2 (en) * | 2001-09-04 | 2007-01-09 | Doron Handelman | Optical packet switching apparatus and methods |
US6847787B2 (en) * | 2001-09-07 | 2005-01-25 | Redfern Broadband Networks Inc. | WDM network node module |
US7095958B1 (en) | 2001-09-13 | 2006-08-22 | At&T Corp. | Fiber access architecture capable of being seamlessly upgraded |
US7394984B1 (en) * | 2001-09-13 | 2008-07-01 | At&T Corp. | Fiber access architecture capable of being seamlessly upgraded |
US7058297B1 (en) | 2001-09-25 | 2006-06-06 | Ciena Corporation | Distributed processor modules and persistent storage in an optical network |
WO2003030413A2 (en) * | 2001-10-01 | 2003-04-10 | Nortel Networks Limited | Fault signalling in optical communications networks |
EP1436870A2 (en) * | 2001-10-09 | 2004-07-14 | Infinera Corporation | TRANSMITTER PHOTONIC INTEGRATED CIRCUITS (TxPIC) AND OPTICAL TRANSPORT NETWORKS EMPLOYING TxPICs |
US20030072057A1 (en) * | 2001-10-15 | 2003-04-17 | At&T Corp. | Virtual common space: using WDM in metro access networks |
FR2831278B1 (en) * | 2001-10-18 | 2004-02-20 | Alcatel Optronics | MULTIPLEXER / DEMULTIPLEXER WITH DISPERSION NETWORKS WITH A SINGLE DIFFRACTION ORDER |
ATE291302T1 (en) * | 2001-11-09 | 2005-04-15 | Evolium Sas | METHOD AND DEVICE FOR THE CHAINED USE OF SDH CARDS |
US20040028317A1 (en) * | 2001-11-20 | 2004-02-12 | Mclean Robert | Network design allowing for the delivery of high capacity data in numerous simultaneous streams, such as video streams |
US7260655B1 (en) * | 2001-12-03 | 2007-08-21 | Cheetah Omni, Llc | Optical routing using star switching fabric with reduced effective switching time |
US7319822B2 (en) * | 2001-12-20 | 2008-01-15 | Victor Yeeman Lo | System and method of space-time equalization to mitigate effects of fading and scintillation for wireless communication |
JP2003198485A (en) * | 2001-12-28 | 2003-07-11 | Nec Corp | Cross connect device and optical communication system |
KR100435792B1 (en) * | 2001-12-28 | 2004-06-10 | 삼성전자주식회사 | A wavelength assignment apparatus in wdm optical ring networks and an algorithm therefor |
FR2834411B1 (en) * | 2002-01-03 | 2005-04-29 | Cit Alcatel | METHOD AND DEVICE FOR MANAGING TIME-DIVISION MULTIPLEXING PACKETS AND WAVELENGTH DISTRIBUTION FOR OPTICAL NETWORKS |
US7035539B2 (en) * | 2002-01-09 | 2006-04-25 | Fujitsu Limited | Interconnecting nodes in an optical communication system |
US6768827B2 (en) * | 2002-01-16 | 2004-07-27 | The Regents Of The University Of California | Integrated optical router |
US7340175B2 (en) * | 2002-01-18 | 2008-03-04 | Nec Corporation | Non-uniform optical waveband aggregator and deaggregator and hierarchical hybrid optical cross-connect system |
DE10202143A1 (en) * | 2002-01-21 | 2003-08-14 | Siemens Ag | Arrangement and method for limiting transmission capacity on a data transmission link |
US6999681B2 (en) | 2002-01-23 | 2006-02-14 | Pts Corporation | Method of seamless migration from static to agile optical networking |
KR100454887B1 (en) * | 2002-01-30 | 2004-11-06 | 한국과학기술원 | The wavelength-division multiplexed passive optical network apparatus |
US8687959B2 (en) * | 2002-02-06 | 2014-04-01 | Ciena Corporation | System and method for configuration discovery in an optical network |
US20030147356A1 (en) * | 2002-02-07 | 2003-08-07 | Jan Vandenhoudt | High speed healing ring for optical transport networks |
US6842551B1 (en) * | 2002-02-08 | 2005-01-11 | Wilbur Christian Vogley | Backplane wire and noise eliminator tube |
US8086101B2 (en) * | 2002-03-08 | 2011-12-27 | Altera Corporation | Multi-city DWDM wavelength link architectures and methods for upgrading |
GB0206049D0 (en) * | 2002-03-14 | 2002-04-24 | Marconi Comm Ltd | Add/drop node for an optical communications network |
US7068938B1 (en) | 2002-03-15 | 2006-06-27 | Xtera Communications, Inc. | Band optical add/drop multiplexing |
US7197245B1 (en) | 2002-03-15 | 2007-03-27 | Xtera Communications, Inc. | System and method for managing system margin |
FR2837641B1 (en) * | 2002-03-21 | 2004-09-10 | Cit Alcatel | METROPOLITAN-TYPE OPTICAL TELECOMMUNICATIONS NETWORK INCLUDING A RING-TYPE CORE |
US6868201B1 (en) | 2002-03-22 | 2005-03-15 | Nortel Networks Limited | Reconfigurable WDM mux/demux/OADM |
WO2003083623A2 (en) * | 2002-03-28 | 2003-10-09 | Celion Networks, Inc. | Apparatus and method for aggregation and transportation for plesiosynchronous framing oriented data formats |
US6842554B2 (en) * | 2002-03-29 | 2005-01-11 | Fujitsu Limited | Optical cross-connect device and optical network |
US7505687B2 (en) * | 2002-03-29 | 2009-03-17 | Pivotal Decisions Llc | Distributed terminal optical transmission system |
US7164692B2 (en) * | 2002-04-08 | 2007-01-16 | Jeffrey Lloyd Cox | Apparatus and method for transmitting 10 Gigabit Ethernet LAN signals over a transport system |
US6965738B2 (en) * | 2002-04-16 | 2005-11-15 | Eiselt Michael H | Chromatic dispersion compensation system and method |
AU2003241308A1 (en) * | 2002-04-22 | 2003-11-03 | Celion Networks, Inc. | Automated optical transport system |
US6847678B2 (en) * | 2002-04-25 | 2005-01-25 | Raytheon Company | Adaptive air interface waveform |
US7206516B2 (en) * | 2002-04-30 | 2007-04-17 | Pivotal Decisions Llc | Apparatus and method for measuring the dispersion of a fiber span |
AU2003231190A1 (en) * | 2002-04-30 | 2003-11-17 | Celion Networks, Inc. | Optical transport system architecture for remote terminal connectivity |
US8494372B2 (en) * | 2002-04-30 | 2013-07-23 | Pivotal Decisions Llc | Apparatus and method for optimizing optical and electrical filtering of optical signals |
US7460296B2 (en) | 2002-04-30 | 2008-12-02 | Pivotal Decisions Llc | Compensation for spectral power tilt from scattering |
US7711271B2 (en) * | 2002-04-30 | 2010-05-04 | Eiselt Michael H | Wave division multiplexed optical transport system utilizing optical circulators to isolate an optical service channel |
US7184663B2 (en) * | 2002-05-29 | 2007-02-27 | Fujitsu Limited | Optical ring network with hub node and method |
US7283739B2 (en) * | 2002-05-29 | 2007-10-16 | Fujitsu Limited | Multiple subnets in an optical ring network and method |
US7283740B2 (en) * | 2002-05-29 | 2007-10-16 | Fujitsu Limited | Optical ring network with optical subnets and method |
US6834065B2 (en) * | 2002-05-21 | 2004-12-21 | Carrier Access Corporation | Methods and apparatuses for direct digital drive of a laser in a passive optical network |
US7075712B2 (en) * | 2002-05-30 | 2006-07-11 | Fujitsu Limited | Combining and distributing amplifiers for optical network and method |
US7085496B2 (en) * | 2002-05-30 | 2006-08-01 | Fujitsu Limited | Passive add/drop amplifier for optical networks and method |
US7127669B2 (en) * | 2002-05-31 | 2006-10-24 | Kiribati Wireless Ventures, Llc | Redundant path communication methods and systems |
US20030223749A1 (en) * | 2002-05-31 | 2003-12-04 | David Funk | Optical network management |
US7924496B2 (en) * | 2002-06-04 | 2011-04-12 | Pivotal Decisions Llc | Apparatus and method for Raman gain control |
US20050226630A1 (en) * | 2003-06-03 | 2005-10-13 | Celion Networks Inc. | Optical bypass method and architecture |
US6920277B2 (en) | 2002-06-04 | 2005-07-19 | Marvin R. Young | Optical bypass method and architecture |
US20040042067A1 (en) * | 2002-06-04 | 2004-03-04 | Eiselt Michael H. | Apparatus and method for duplex optical transport using a co-directional optical amplifier |
AU2003273529A1 (en) * | 2002-06-04 | 2003-12-19 | Celion Networks, Inc. | Flexible, dense line card architecture |
US7460745B2 (en) * | 2002-06-04 | 2008-12-02 | Pivotal Decisions Llc | Configurable dispersion compensation trimmer |
US7440164B2 (en) * | 2002-06-04 | 2008-10-21 | Pivotal Decisions Llc | Apparatus and method for Raman gain spectral control |
US7603042B2 (en) * | 2002-06-04 | 2009-10-13 | Eiselt Michael H | Apparatus and method for optimum decision threshold setting |
US20040005115A1 (en) * | 2002-07-02 | 2004-01-08 | Luo Xin Simon | Optoelectronic add/drop multiplexer |
US6879434B2 (en) * | 2002-07-11 | 2005-04-12 | Fujitsu Network Communications, Inc. | Distributed raman amplifier for optical network and method |
AU2003270627A1 (en) * | 2002-09-16 | 2004-04-30 | Ciena Corporation | Optical cross connect apparatus and method |
US20040052530A1 (en) * | 2002-09-17 | 2004-03-18 | Cechan Tian | Optical network with distributed sub-band rejections |
JP2004120669A (en) * | 2002-09-30 | 2004-04-15 | Opnext Japan Inc | Optical receiver |
US8971362B2 (en) * | 2002-10-08 | 2015-03-03 | Infinera Corporation | Monitoring of a laser source with front and rear output photodetectors to determine frontal laser power and power changes over laser lifetime |
WO2004036801A1 (en) * | 2002-10-15 | 2004-04-29 | Adva Ag Optical Networking | Optical add/drop multiplexer and ring structure for transmitting data by means of an optical wavelength multiplex system |
CN1742512A (en) * | 2002-12-04 | 2006-03-01 | 康宁股份有限公司 | Fast-switching scalable optical interconnection design with fast contention resolution |
US7421207B2 (en) * | 2002-12-13 | 2008-09-02 | Pivotal Decisions Llc | Single fiber duplex optical transport |
US7782778B2 (en) * | 2002-12-24 | 2010-08-24 | Samir Satish Sheth | Apparatus and method for fibre channel distance extension embedded within an optical transport system |
US7656905B2 (en) | 2002-12-24 | 2010-02-02 | Samir Sheth | Apparatus and method for aggregation and transportation of gigabit ethernet and other packet based data formats |
KR100487215B1 (en) * | 2003-01-03 | 2005-05-04 | 삼성전자주식회사 | Wdm self-curable ring-type optical communication network |
ES2216705B1 (en) * | 2003-04-04 | 2006-01-16 | Productos Profesionales De Telecomunicaciones, S.A. | MULTIPLEXATION / DEMULTIPLEXATION DEVICE FOR DATA TRANSMISSION BY OPTICAL FIBER THROUGH CWDM TECHNOLOGY ". |
US7609931B2 (en) * | 2003-04-18 | 2009-10-27 | Enablence, Inc. | Planar waveguide structure with tightly curved waveguides |
US6754410B1 (en) * | 2003-05-29 | 2004-06-22 | Lucent Technologies Inc. | Integrated wavelength-selective cross connect |
US7321729B2 (en) * | 2003-05-29 | 2008-01-22 | Fujitsu Limited | Optical ring network with selective signal regeneration and wavelength conversion |
US6898347B2 (en) * | 2003-05-30 | 2005-05-24 | Intel Corporation | Monitoring power in optical networks |
US20040252996A1 (en) * | 2003-06-10 | 2004-12-16 | Nortel Networks Limited | Flexible banded MUX/DEMUX architecture for WDM systems |
US7321291B2 (en) * | 2004-10-26 | 2008-01-22 | Current Technologies, Llc | Power line communications system and method of operating the same |
US7167620B2 (en) * | 2003-07-16 | 2007-01-23 | Doron Handelman | Devices and methods for all-optical processing and storage |
US7483636B2 (en) * | 2003-07-28 | 2009-01-27 | Fujitsu Limited | Optical network with sub-band rejection and bypass |
US7403715B2 (en) * | 2003-08-13 | 2008-07-22 | Northrop Grumman Corporation | Free space optical bus |
US20050047516A1 (en) * | 2003-09-01 | 2005-03-03 | Grolmusz Vince I. | A method for dense and secure transmission of signals and information using a small number of channels |
US20050084267A1 (en) * | 2003-09-09 | 2005-04-21 | Arizona Board of Regents, a body corporate of the state of Arizona, acting for and on behalf of | Performance enhanced single-hop WDM network with heterogeneous protection |
US20050087673A1 (en) * | 2003-10-23 | 2005-04-28 | Ray Chen | Apparatus and method for an electronically tuned, wavelength-dependent optical detector |
US20050095001A1 (en) * | 2003-10-29 | 2005-05-05 | Fujitsu Limited | Method and system for increasing network capacity in an optical network |
US7483637B2 (en) * | 2003-11-26 | 2009-01-27 | Fujitsu Limited | Optical ring network with optical subnets and method |
US6959128B2 (en) * | 2003-12-02 | 2005-10-25 | Fujitsu Limited | Coupler-based optical cross-connect having a regeneration module |
US20050175346A1 (en) * | 2004-02-10 | 2005-08-11 | Fujitsu Limited | Upgraded flexible open ring optical network and method |
US7577359B2 (en) * | 2004-05-03 | 2009-08-18 | At&T Intellectual Property I, L.P. | System and method for SONET transport optimization (S-TOP) |
US20050265721A1 (en) * | 2004-05-13 | 2005-12-01 | Meriton Networks Inc. | Multi-band architecture for DWDM rings |
WO2006002080A2 (en) * | 2004-06-15 | 2006-01-05 | Opvista Incorporated | Optical communication using duobinary modulation |
ITMI20041287A1 (en) * | 2004-06-24 | 2004-09-24 | Marconi Comm Spa | SELF-LEVELING OPTICAL DEMULTIPLEXER WITH SINGLE AMPLIFIER AND OADM DEVICE WITH IT |
US20050286896A1 (en) * | 2004-06-29 | 2005-12-29 | Fujitsu Limited | Hybrid optical ring network |
US7634196B2 (en) * | 2004-10-06 | 2009-12-15 | Cisco Technology, Inc. | Optical add/drop multiplexer with reconfigurable add wavelength selective switch |
US7548695B2 (en) * | 2004-10-19 | 2009-06-16 | Nextg Networks, Inc. | Wireless signal distribution system and method |
JPWO2006051981A1 (en) * | 2004-11-15 | 2008-05-29 | 日立化成工業株式会社 | Optical reflector, optical multiplexer / demultiplexer, and optical system |
US7574140B2 (en) * | 2004-12-22 | 2009-08-11 | Tyco Telecommunications (Us) Inc. | Optical transmission system including repeatered and unrepeatered segments |
CN100388708C (en) * | 2005-01-01 | 2008-05-14 | 华为技术有限公司 | Grouped light channel sharing protection method and system |
US7120360B2 (en) * | 2005-01-06 | 2006-10-10 | Fujitsu Limited | System and method for protecting traffic in a hubbed optical ring network |
US7769296B1 (en) | 2005-02-17 | 2010-08-03 | At&T Intellectual Property Ii, L.P. | Arrangement for reducing multiplexing and demultiplexing cost in ultra long haul (ULH) all-optical networks by minimizing number of required mux/demux groups |
US20060188260A1 (en) * | 2005-02-22 | 2006-08-24 | Positron Networks Pni Inc. | Robust service delivery node and method therefor |
US7242841B2 (en) * | 2005-02-28 | 2007-07-10 | Corning Cable Systems, Llc | Cross-connect fiber optic cables and associated cross-connect sections |
JP4709567B2 (en) * | 2005-03-31 | 2011-06-22 | 富士通株式会社 | Drop and continue equipment |
DE102005041371A1 (en) * | 2005-04-28 | 2006-11-09 | Siemens Ag | Arrangements for an add-drop device and transmission system for wavelength division multiplexed signals |
WO2006119375A2 (en) * | 2005-05-02 | 2006-11-09 | Opvista, Incorporated | Multiple interconnected broadcast and select optical ring networks with revertible protection switch |
US20060264214A1 (en) * | 2005-05-20 | 2006-11-23 | Nextwave Broadband, Inc. | Mode-switching wireless communications equipment |
JP4599613B2 (en) * | 2005-08-31 | 2010-12-15 | 日本電信電話株式会社 | Optical add / drop switch |
JP4599614B2 (en) * | 2005-08-31 | 2010-12-15 | 日本電信電話株式会社 | Optical add / drop switch |
ITMI20051625A1 (en) * | 2005-09-01 | 2007-03-02 | Marconi Comm Spa | OPTICAL AMPLIFIER AND WDM RING NETWORK ALL OPTICAL IN METROPOLITAN CONTEXT WITH IT |
US7505686B2 (en) * | 2005-09-01 | 2009-03-17 | Alcatel-Lucent Usa Inc. | Highly scalable multi-granular node architecture |
US8139476B2 (en) * | 2005-10-13 | 2012-03-20 | Vello Systems, Inc. | Optical ring networks using circulating optical probe in protection switching with automatic reversion |
CN100454785C (en) * | 2005-12-22 | 2009-01-21 | 华为技术有限公司 | Method and apparatus for sharing protection of grouped light path |
JP4731376B2 (en) * | 2006-03-29 | 2011-07-20 | 富士通株式会社 | Relay nodes in optical networks |
US7805073B2 (en) | 2006-04-28 | 2010-09-28 | Adc Telecommunications, Inc. | Systems and methods of optical path protection for distributed antenna systems |
US7254337B1 (en) | 2006-05-16 | 2007-08-07 | Xtera Communications, Inc. | Band optical add/drop multiplexing |
US8085676B2 (en) * | 2006-06-29 | 2011-12-27 | Nortel Networks Limited | Method and system for looping back traffic in QIQ ethernet rings and 1:1 protected PBT trunks |
US7676154B2 (en) * | 2006-06-29 | 2010-03-09 | Nortel Networks Limited | Method and system for configuring a connection-oriented packet network over a wavelength division multiplexed optical network |
US20100238813A1 (en) * | 2006-06-29 | 2010-09-23 | Nortel Networks Limited | Q-in-Q Ethernet rings |
US7542653B2 (en) * | 2006-08-29 | 2009-06-02 | Cisco Technology, Inc. | Passive fiber organizer for mesh network node interconnections |
US8374295B2 (en) * | 2006-09-18 | 2013-02-12 | Mediatek Inc. | Method of scaling input data and mobile device utilizing the same |
KR100825747B1 (en) * | 2006-11-17 | 2008-04-29 | 한국전자통신연구원 | Optical transmission node for mesh-type wdm optical network |
US8014668B2 (en) * | 2007-01-21 | 2011-09-06 | Alcatel Lucent | Method and system for distributed measurement and compensation of chromatic dispersion in an optical network |
US8005356B2 (en) * | 2007-02-13 | 2011-08-23 | Media Global Links Co., Ltd. | Video transmission system of a ring network |
JP4774381B2 (en) * | 2007-03-16 | 2011-09-14 | 富士通株式会社 | Optical receiver and optical level adjustment amount setting method thereof |
US7773883B1 (en) | 2007-05-04 | 2010-08-10 | Vello Systems, Inc. | Single-fiber optical ring networks based on optical double sideband modulation |
WO2008155911A1 (en) * | 2007-06-19 | 2008-12-24 | Panasonic Corporation | Channel arrangement method and radio communication base station device |
US8175458B2 (en) | 2007-07-17 | 2012-05-08 | Vello Systems, Inc. | Optical ring networks having node-to-node optical communication channels for carrying data traffic |
US8484836B2 (en) * | 2007-09-10 | 2013-07-16 | The Board Of Trustees Of The Leland Stanford Junior University | Flexible network |
US7941387B2 (en) * | 2007-11-05 | 2011-05-10 | International Business Machines Corporation | Method and system for predicting resource usage of reusable stream processing elements |
EP2232747B1 (en) * | 2008-01-14 | 2019-03-06 | Coriant Operations, Inc. | Directionless wavelength addition/subtraction using roadm |
US8849115B2 (en) * | 2008-03-11 | 2014-09-30 | Ciena Corporation | Directionless optical architecture and highly available network and photonic resilience methods |
US8125984B2 (en) * | 2008-03-21 | 2012-02-28 | International Business Machines Corporation | Method, system, and computer program product for implementing stream processing using a reconfigurable optical switch |
US8943509B2 (en) * | 2008-03-21 | 2015-01-27 | International Business Machines Corporation | Method, apparatus, and computer program product for scheduling work in a stream-oriented computer system with configurable networks |
US8521023B2 (en) * | 2008-05-08 | 2013-08-27 | Hewlett-Packard Development Company, L.P. | Hierarchical passive networks |
KR100969741B1 (en) * | 2008-07-11 | 2010-07-13 | 엘지노텔 주식회사 | Optical communication system for providing ring hybrided star network |
US7856544B2 (en) * | 2008-08-18 | 2010-12-21 | International Business Machines Corporation | Stream processing in super node clusters of processors assigned with stream computation graph kernels and coupled by stream traffic optical links |
JP5326500B2 (en) * | 2008-10-31 | 2013-10-30 | 富士通株式会社 | Route number expanding method and optical hub node device |
US8477638B2 (en) * | 2008-12-02 | 2013-07-02 | Cisco Technology, Inc. | Latency enhancements for multicast traffic over spatial reuse protocol (SRP) |
US8521034B2 (en) * | 2009-02-20 | 2013-08-27 | Samsung Electronics Co., Ltd. | Apparatus and method for interference mitigation and channel selection for visible light communication |
CN101582825B (en) * | 2009-06-26 | 2012-07-25 | 四川神坤装备股份有限公司 | Automatically ordinal numeration circuit connected with CAN fieldbus equipment and method |
CA2769270C (en) * | 2009-07-31 | 2016-02-09 | Tyco Electronics Subsea Communications Llc | Hybrid optical add-drop multiplexing network and wavelength allocation for the same |
ES2383645T3 (en) * | 2009-10-13 | 2012-06-25 | Alcatel Lucent | Procedure and optical transmission apparatus using OFDM |
US8886792B2 (en) * | 2009-10-13 | 2014-11-11 | Cardiopulmonary Corp. | Method and apparatus for displaying and storing data from medical devices and alarming in response to triggers by a plurality of alarm types |
US8339803B2 (en) * | 2009-12-04 | 2012-12-25 | International Business Machine Corporation | High-speed ceramic modules with hybrid referencing scheme for improved performance and reduced cost |
US8744262B2 (en) | 2009-12-08 | 2014-06-03 | Vello Systems, Inc. | Optical subchannel routing, protection switching and security |
US8705741B2 (en) * | 2010-02-22 | 2014-04-22 | Vello Systems, Inc. | Subchannel security at the optical layer |
WO2012023253A1 (en) * | 2010-08-20 | 2012-02-23 | パナソニック株式会社 | Reception display device, information transmission device, optical wireless communication system, integrated circuit for reception display, integrated circuit for information transmission, reception display program, information transmission program, optical wireless communication method |
US8542999B2 (en) | 2011-02-01 | 2013-09-24 | Vello Systems, Inc. | Minimizing bandwidth narrowing penalties in a wavelength selective switch optical network |
EP2707766A4 (en) | 2011-05-10 | 2015-07-08 | Invensys Sys Inc | Multi-drop optical communication |
EP2721775B1 (en) | 2011-06-20 | 2016-03-02 | Plexxi Inc. | Optical architecture and channel plan employing multi-fiber configurations for data center network switching |
JP5811631B2 (en) | 2011-06-27 | 2015-11-11 | 富士通株式会社 | Superposition signal detection circuit and optical node device |
US8856495B2 (en) * | 2011-07-25 | 2014-10-07 | International Business Machines Corporation | Automatically routing super-compute interconnects |
US20130071110A1 (en) * | 2011-09-16 | 2013-03-21 | Tony Susanto | Providing Optical Power Information from an Optical Receiver to an Optical Transmitter Using a Serial Bus |
EP2597801B1 (en) * | 2011-11-25 | 2014-01-08 | ADVA Optical Networking SE | Meshed protected passive optical access network structure and optical network unit structure therefore |
US9002194B2 (en) | 2012-04-09 | 2015-04-07 | Telefonaktiebolaget L M Ericsson (Publ) | Optical-layer multipath protection for optical network |
US9252912B2 (en) | 2012-04-09 | 2016-02-02 | Telefonaktiebolaget L M Ericsson (Publ) | Method for routing and spectrum assignment |
US8929738B2 (en) * | 2012-05-30 | 2015-01-06 | Telefonaktiebolaget L M Ericsson (Publ) | Resilience in an access subnetwork ring |
US9112635B2 (en) | 2012-06-13 | 2015-08-18 | Telefonaktiebolaget L M Ericsson (Publ) | Methods and apparatus for a passive access subnetwork |
US8873963B2 (en) | 2012-07-25 | 2014-10-28 | Doron Handelman | Apparatus and methods for generating and receiving optical signals at substantially 100Gb/s and beyond |
GB2504970A (en) | 2012-08-15 | 2014-02-19 | Swan Thomas & Co Ltd | Optical device and methods to reduce cross-talk |
JP5962455B2 (en) | 2012-11-21 | 2016-08-03 | 富士通株式会社 | Optical transmission device, node device, optical transmission method, and optical transmission system |
US9054955B2 (en) | 2012-12-30 | 2015-06-09 | Doron Handelman | Apparatus and methods for enabling recovery from failures in optical networks |
WO2014106542A1 (en) * | 2013-01-04 | 2014-07-10 | Telefonaktiebolaget L M Ericsson (Publ) | Optical network apparatus for self-seeded communications |
US9380474B2 (en) | 2013-03-08 | 2016-06-28 | Cardiopulmonary Corp. | Network monitoring for active medical device alarms |
US20140270634A1 (en) * | 2013-03-13 | 2014-09-18 | Gary Evan Miller | Multi- purpose apparatus for switching, amplifying, replicating, and monitoring optical signals on a multiplicity of optical fibers |
IN2013MU01980A (en) * | 2013-06-10 | 2015-05-29 | Indian Inst Technology Bombay | |
US8958514B2 (en) * | 2013-07-12 | 2015-02-17 | IPLight Ltd. | Clock recovery in communication of hierarchically encapsulated signals |
US9344187B2 (en) | 2013-09-17 | 2016-05-17 | Doron Handelman | Apparatus and methods for enabling recovery in optical networks |
US9960878B2 (en) * | 2013-10-01 | 2018-05-01 | Indian Institute Of Technology Bombay | Scalable ultra dense hypergraph network for data centers |
US9337959B2 (en) * | 2013-10-14 | 2016-05-10 | Applied Micro Circuits Corporation | Defect propagation of multiple signals of various rates when mapped into a combined signal |
EP3113391B1 (en) * | 2014-02-28 | 2019-03-20 | Japan Science and Technology Agency | Optical network |
JP6623527B2 (en) * | 2015-02-20 | 2019-12-25 | 富士通株式会社 | Transmission device and transmission control method |
US9768870B2 (en) | 2015-02-25 | 2017-09-19 | Ciena Corporation | Automatic configuration of network devices in a cluster based on physical deployment |
US20160301495A1 (en) * | 2015-04-08 | 2016-10-13 | Nec Laboratories America, Inc. | Power Efficient Multi-Degree ROADM Using Variable Optical Splitter |
EP3145137A1 (en) * | 2015-09-15 | 2017-03-22 | Alcatel Lucent | Method for operating a line switching component, line switching component, line card, and network node thereof |
US9806808B2 (en) | 2015-10-30 | 2017-10-31 | Ciena Corporation | Signal detection systems and methods on a fiber carrying multiple wavelengths |
WO2017167400A1 (en) * | 2016-04-01 | 2017-10-05 | Telefonaktiebolaget Lm Ericsson (Publ) | Network node and method |
US9998225B2 (en) * | 2016-08-06 | 2018-06-12 | OE Solutions Co., Ltd. | Protected ethernet ring with small form-factor pluggable devices |
JP6965937B2 (en) * | 2017-09-28 | 2021-11-10 | 日本電気株式会社 | Submarine branching device, optical submarine cable system, optical communication method |
WO2021171439A1 (en) * | 2020-02-26 | 2021-09-02 | 日本電信電話株式会社 | Photonic-electronic convergence switch, and optical network system |
US11503387B2 (en) | 2020-05-21 | 2022-11-15 | Hewlett Packard Enterprise Development Lp | Zero added latency packet reroute via silicon photonics |
US11340410B2 (en) | 2020-10-19 | 2022-05-24 | Hewlett Packard Enterprise Development Lp | Dimensionally all-to-all connected network system using photonic crossbars and quad-node-loop routing |
US11323787B1 (en) | 2020-10-30 | 2022-05-03 | Hewlett Packard Enterprise Development Lp | Multi-chip photonic node for scalable all-to-all connected fabrics |
Family Cites Families (212)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3501640A (en) | 1967-01-13 | 1970-03-17 | Ibm | Optical communication system |
US3864533A (en) | 1973-06-01 | 1975-02-04 | Vidar Corp | Automatic line transfer system and method for a communications system |
US4042794A (en) | 1975-01-27 | 1977-08-16 | Lynch Communication Systems | Method and means for detecting an outgoing failure in a bidirectional communications span and looping the same in response thereto |
CH607500A5 (en) | 1976-03-18 | 1978-12-29 | Patelhold Patentverwertung | |
DE2753420C3 (en) | 1977-11-30 | 1980-06-19 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Device for equivalent switching of operating systems for digital signals |
JPS54103055A (en) | 1978-01-31 | 1979-08-14 | Nippon Telegr & Teleph Corp <Ntt> | Spectrometer |
US4451916A (en) | 1980-05-12 | 1984-05-29 | Harris Corporation | Repeatered, multi-channel fiber optic communication network having fault isolation system |
US4373782A (en) | 1980-06-03 | 1983-02-15 | Optical Coating Laboratory, Inc. | Non-polarizing thin film edge filter |
JPS5947906B2 (en) | 1980-07-11 | 1984-11-22 | 株式会社日立製作所 | loop transmission system |
DE3037712A1 (en) | 1980-10-06 | 1982-05-13 | Siemens AG, 1000 Berlin und 8000 München | OPTICAL WAVELENGTH MULTIPLEX SYSTEM |
JPS5940739A (en) | 1982-08-30 | 1984-03-06 | Fujitsu Ltd | Loopback control system |
US4567482A (en) | 1982-11-12 | 1986-01-28 | The Babcock & Wilcox Company | Bypass control for stations in a communication system |
US4880289A (en) | 1983-12-16 | 1989-11-14 | Hitachi, Ltd. | Two-way optical transmission system |
US4561088A (en) | 1984-02-13 | 1985-12-24 | Fmc Corporation | Communication system bypass architecture |
GB8423430D0 (en) | 1984-09-17 | 1984-10-24 | British Telecomm | Optical switching means |
CA1250170A (en) | 1985-07-16 | 1989-02-21 | Jerzy A. Dobrowolski | Optical mixing/demixing device |
US4648088A (en) | 1985-08-19 | 1987-03-03 | Rockwell International Corporation | Distributed control time division multiplex ring communication apparatus |
US4763317A (en) | 1985-12-13 | 1988-08-09 | American Telephone And Telegraph Company, At&T Bell Laboratories | Digital communication network architecture for providing universal information services |
US4901306A (en) | 1987-02-24 | 1990-02-13 | American Telephone And Telegraph Company, At&T Bell Laboratories | Wavelength-division multiplexed optical fiber network |
US4837856A (en) | 1987-05-04 | 1989-06-06 | Glista Jr Andrew S | Fault-tolerant fiber optic coupler/repeater for use in high speed data transmission and the like |
US4821255A (en) | 1987-05-06 | 1989-04-11 | Bell Communications Research, Inc. | Cross-connection of wavelength-division-multiplexed high speed optical channels |
JPS6483927A (en) * | 1987-09-24 | 1989-03-29 | Aisin Seiki | Hydraulic multiple disc clutch |
GB8727260D0 (en) | 1987-11-20 | 1987-12-23 | British Telecomm | Switched optical network |
US4835763A (en) | 1988-02-04 | 1989-05-30 | Bell Communications Research, Inc. | Survivable ring network |
US4956836A (en) | 1988-03-28 | 1990-09-11 | Par Microsystems Corp. | Automatic bypass system for ring type local area network |
US5221983A (en) | 1989-01-19 | 1993-06-22 | Bell Communications Research, Inc. | Passive photonic loop architecture employing wavelength multiplexing |
USRE36472E (en) | 1989-03-22 | 1999-12-28 | Stmicroelectronics, S.R.L. | Bridge circuit having polarity inversion protection means entailing a reduced voltage drop |
DE3913300A1 (en) | 1989-04-22 | 1990-10-25 | Standard Elektrik Lorenz Ag | OPTICAL MESSAGE TRANSMISSION SYSTEM FOR THE PARTICIPANT CONNECTION AREA |
US5000531A (en) | 1989-05-22 | 1991-03-19 | Harris Corporation | Passive bypass for fiber optic ring network |
JP2777194B2 (en) | 1989-05-29 | 1998-07-16 | 株式会社東芝 | Optical transmission system |
US4927225A (en) | 1989-05-30 | 1990-05-22 | Finisar Corporation | 2×2 Optical bypass switch |
JPH0365838A (en) * | 1989-08-04 | 1991-03-20 | Nippon Telegr & Teleph Corp <Ntt> | Ring type optical network |
EP0419710A1 (en) | 1989-09-28 | 1991-04-03 | Siemens Aktiengesellschaft | Bidirectional fibre-optical telecommunication system for wavelength division multiplexing between a central telecommunication station and a number of remote telecommunication stations |
US5455698A (en) | 1989-12-27 | 1995-10-03 | Mcdonnell Douglas Corporation | Secure communication alarm system |
JPH03214939A (en) | 1990-01-19 | 1991-09-20 | Nec Corp | Channel identification reception method |
US5002350A (en) | 1990-02-26 | 1991-03-26 | At&T Bell Laboratories | Optical multiplexer/demultiplexer |
EP0452895B1 (en) | 1990-04-18 | 1996-07-03 | Canon Kabushiki Kaisha | Optical communication network system and communication method using the same |
US5317198A (en) | 1990-06-26 | 1994-05-31 | The Mitre Corporation | Optically controlled remote by-pass switch |
JPH04124935A (en) | 1990-09-17 | 1992-04-24 | Canon Inc | Light communication network and optical node to be used threrein |
US5245404A (en) | 1990-10-18 | 1993-09-14 | Physical Optics Corportion | Raman sensor |
JP3117018B2 (en) | 1990-10-29 | 2000-12-11 | 株式会社日立製作所 | Network equipment |
US5400163A (en) | 1990-11-21 | 1995-03-21 | Mitsubishi Denki Kabushiki Kaisha | Multiplex digital communication system for transmitting channel identification information |
JP2782958B2 (en) | 1990-12-28 | 1998-08-06 | 日本電気株式会社 | Medium access method for optical local area network system |
US5191626A (en) | 1991-04-22 | 1993-03-02 | The Trustees Of Columbia University In The City Of New York | Optical communications system and method |
JPH04334134A (en) | 1991-05-10 | 1992-11-20 | Mitsubishi Electric Corp | Optical communication equipment |
US5365344A (en) | 1991-06-27 | 1994-11-15 | Nec Corporation | System for transmitting data using wavelength division multiplexing |
US5136671A (en) | 1991-08-21 | 1992-08-04 | At&T Bell Laboratories | Optical switch, multiplexer, and demultiplexer |
US5319435A (en) | 1991-09-04 | 1994-06-07 | Melle Serge M | Method and apparatus for measuring the wavelength of spectrally narrow optical signals |
JPH05153066A (en) | 1991-11-25 | 1993-06-18 | Canon Inc | Mode for loop type optical lan and loop type optical lan using the same |
US5321541A (en) | 1991-12-12 | 1994-06-14 | At&T Bell Laboratories | Passive optical communication network with broadband upgrade |
US5216666A (en) | 1991-12-12 | 1993-06-01 | Alcatel Network Systems, Inc. | 1:n ring-type signal protection apparatus |
ES2111552T3 (en) | 1991-12-23 | 1998-03-16 | Alsthom Cge Alcatel | OPTICAL TRANSMISSION SYSTEM. |
GB9202564D0 (en) | 1992-02-07 | 1992-03-25 | Marconi Gec Ltd | Optical signal transmission network |
AU669699B2 (en) | 1992-04-09 | 1996-06-20 | British Telecommunications Public Limited Company | Optical processing system |
US5255332A (en) | 1992-07-16 | 1993-10-19 | Sdl, Inc. | NxN Optical crossbar switch matrix |
US5283845A (en) | 1992-07-20 | 1994-02-01 | Jds Fitel Inc. | Multi-port tunable fiber-optic filter |
WO1994003230A1 (en) | 1992-08-07 | 1994-02-17 | Boston Scientific Corporation | Support catheter assembly |
JP2804954B2 (en) | 1992-08-13 | 1998-09-30 | 日本電信電話株式会社 | Polarization-independent optical pulse separation circuit and polarization-independent optical pulse multiplexing circuit |
US5442623A (en) | 1992-08-17 | 1995-08-15 | Bell Communications Research, Inc. | Passive protected self healing ring network |
EP0660993B1 (en) | 1992-09-14 | 1997-03-26 | BRITISH TELECOMMUNICATIONS public limited company | Distributive communications network and method |
JP3155837B2 (en) | 1992-09-14 | 2001-04-16 | 株式会社東芝 | Optical transmission equipment |
CA2107181C (en) | 1992-09-29 | 1998-12-29 | Yoshiaki Tachikawa | Arrayed-wave guide grating multi/demultiplexer with loop-back optical paths |
US5406401A (en) | 1992-10-02 | 1995-04-11 | At&T Corp. | Apparatus and method for selective tributary switching in a bidirectional ring transmission system |
CA2108305C (en) | 1992-10-15 | 1998-09-22 | Noboru Yamamoto | Optical concentrator and optical communication network using the same |
DE69333423T2 (en) | 1992-10-15 | 2004-12-16 | Canon K.K. | Optical concentrator and optical transmission network with such a concentrator |
ATE218257T1 (en) | 1992-11-16 | 2002-06-15 | Canon Kk | TRANSFER METHOD AND SYSTEM USING TOKEN PASSAGE ACCESS PROTOCOL |
US5469265A (en) | 1992-12-02 | 1995-11-21 | Measures; Raymond M. | Method and apparatus for an optoelectronic smart structure interface with wavelength demodulation of laser sensors |
DE4241664C2 (en) | 1992-12-04 | 1995-04-06 | Borus Spezialverfahren | Electronic life detection system |
US5440416A (en) | 1993-02-24 | 1995-08-08 | At&T Corp. | Optical network comprising a compact wavelength-dividing component |
JP2928046B2 (en) | 1993-04-16 | 1999-07-28 | 日本電気株式会社 | Optical network and its fault recovery system |
CA2096504C (en) | 1993-05-18 | 1996-02-06 | Emanuel Weissmann | Self-healing drop and insert communication network |
US5414540A (en) | 1993-06-01 | 1995-05-09 | Bell Communications Research, Inc. | Frequency-selective optical switch employing a frequency dispersive element, polarization dispersive element and polarization modulating elements |
US5600473A (en) | 1993-06-04 | 1997-02-04 | Ciena Corporation | Optical amplifier systems with add/drop multiplexing |
US5579143A (en) | 1993-06-04 | 1996-11-26 | Ciena Corporation | Optical system with tunable in-fiber gratings |
US5475780A (en) | 1993-06-17 | 1995-12-12 | At&T Corp. | Optical waveguiding component comprising a band-pass filter |
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. |
DE69432965T2 (en) | 1993-08-24 | 2004-05-27 | Canon K.K. | Network for connecting multiple nodes using multiple channels |
US5917625A (en) | 1993-09-09 | 1999-06-29 | Kabushiki Kaisha Toshiba | High resolution optical multiplexing and demultiplexing device in optical communication system |
DE59310361D1 (en) | 1993-10-29 | 2004-07-29 | Siemens Ag | Optical, transparent ring network with decoupling of a signal of a wavelength in one or more ring nodes |
DE69424311T2 (en) | 1993-11-08 | 2000-12-14 | British Telecomm | CROSS-CONNECTING SYSTEM FOR AN OPTICAL NETWORK |
US5774244A (en) | 1994-01-18 | 1998-06-30 | British Telecommunications Public Limited Company | Optical communications networks |
KR100213807B1 (en) | 1994-01-18 | 1999-08-02 | 어니스트 빅커스 시모스 로버트 | Interconnected passive optical networks |
GB9401488D0 (en) | 1994-01-26 | 1994-03-23 | British Telecomm | Optical communications |
US5864414A (en) | 1994-01-26 | 1999-01-26 | British Telecommunications Public Limited Company | WDM network with control wavelength |
EP0668674B1 (en) | 1994-02-17 | 2003-05-21 | Kabushiki Kaisha Toshiba | Optical wavelength division multiplexed network system |
US5452124A (en) | 1994-03-04 | 1995-09-19 | Williams Telecommunications Group, Inc. | Unidirectional amplification for bi-directional transmission using wavelength-division multiplexing |
CA2185138C (en) | 1994-03-29 | 2001-01-23 | Alan Michael Hill | Optical telecommunications network |
FR2718908B1 (en) | 1994-04-13 | 1996-06-21 | France Telecom | Telecommunication network organized in reconfigurable multicolored optical loops. |
FR2718869B1 (en) | 1994-04-13 | 1996-05-24 | Andre Hamel | Network architecture in multiple access transmission loop by spectral routing. |
US5457760A (en) | 1994-05-06 | 1995-10-10 | At&T Ipm Corp. | Wavelength division optical multiplexing elements |
KR970003527B1 (en) | 1994-05-14 | 1997-03-18 | 재단법인 한국전자통신연구소 | Bilateral multichannel optical ring networks using wdm techniques |
FR2720883B1 (en) | 1994-06-07 | 1997-01-10 | Cit Alcatel | Optical spectral insertion-extraction multiplexer. |
JPH0818592A (en) | 1994-06-30 | 1996-01-19 | Fujitsu Ltd | Optical fiber transmission system having ring protection by optical switching |
US5488500A (en) | 1994-08-31 | 1996-01-30 | At&T Corp. | Tunable add drop optical filtering method and apparatus |
US5550818A (en) | 1994-09-19 | 1996-08-27 | Bell Communications Research, Inc. | System for wavelength division multiplexing/asynchronous transfer mode switching for network communication |
GB9418946D0 (en) | 1994-09-20 | 1994-11-09 | Bicc Plc | Optical network |
US5446809A (en) | 1994-09-23 | 1995-08-29 | United Technologies Corporation | All fiber wavelength selective optical switch |
US5680234A (en) | 1994-10-20 | 1997-10-21 | Lucent Technologies Inc. | Passive optical network with bi-directional optical spectral slicing and loop-back |
GB9423105D0 (en) | 1994-11-16 | 1995-01-04 | Northern Telecom Ltd | Optical wave grating filter |
US5472585A (en) | 1994-11-30 | 1995-12-05 | At&T Corp. | Regeneration of spent electroless copper plating solution |
IT1267645B1 (en) | 1994-12-09 | 1997-02-07 | Cselt Centro Studi Lab Telecom | RING COMMUNICATION STRUCTURE ON OPTICAL VECTOR AND RELATIVE RECONFIGURABLE NODE. |
US5566014A (en) | 1994-12-28 | 1996-10-15 | At&T Corp. | Tunable add/drop optical filter providing arbitrary channel arrangements |
US5852505A (en) | 1994-12-28 | 1998-12-22 | Lucent Technologies Inc. | Dense waveguide division multiplexers implemented using a first stage fourier filter |
DE4447240C1 (en) | 1994-12-30 | 1996-05-23 | Siemens Ag | Method and circuit arrangement for monitoring fixed transmission bit rates during the transmission of message cells |
US5633741A (en) | 1995-02-23 | 1997-05-27 | Lucent Technologies Inc. | Multichannel optical fiber communications |
FR2731082B1 (en) | 1995-02-28 | 1997-04-04 | France Telecom | OPTICAL INSERTION-EXTRACTION MULTIPLEXER USING OPTICAL CIRCULATORS AND PHOTO-WRITTEN BRAGG ARRAYS |
FR2731280B1 (en) | 1995-03-03 | 1997-04-04 | Hamel Andre | HIGH INSULATION INSERTION-EXTRACTION OPTICAL MULTIPLEXER |
CA2146738C (en) | 1995-04-10 | 1999-09-14 | Y. Calvin Si | Narrow band filter and method of making same |
CA2218089C (en) | 1995-04-13 | 2007-06-26 | Telefonaktiebolaget Lm Ericsson | Optical multichannel system |
US5680235A (en) | 1995-04-13 | 1997-10-21 | Telefonaktiebolaget Lm Ericsson | Optical multichannel system |
US5784184A (en) | 1995-05-11 | 1998-07-21 | Ciena Corporation | WDM Optical communication systems with remodulators and remodulating channel selectors |
US5504609A (en) | 1995-05-11 | 1996-04-02 | Ciena Corporation | WDM optical communication system with remodulators |
US5726784A (en) | 1995-05-11 | 1998-03-10 | Ciena Corp. | WDM optical communication system with remodulators and diverse optical transmitters |
US5715076A (en) | 1995-05-11 | 1998-02-03 | Ciena Corporation | Remodulating channel selectors for WDM optical communication systems |
FR2734437B1 (en) | 1995-05-17 | 1997-06-13 | Sutter Alain | WAVELENGTH MULTIPLEXED INFORMATION TRANSMISSION RING NETWORK |
US5583683A (en) | 1995-06-15 | 1996-12-10 | Optical Corporation Of America | Optical multiplexing device |
FR2735931B1 (en) | 1995-06-21 | 1997-07-25 | Hamel Andre | RECONFIGURABLE DEVICE FOR WAVELENGTH INSERTION-EXTRACTION |
SE506748C2 (en) | 1995-06-26 | 1998-02-09 | Ericsson Telefon Ab L M | Method and apparatus for removing and adding channels in an optical multiplexer |
US5999322A (en) | 1995-06-28 | 1999-12-07 | Cushing; David Henry | Multilayer thin film bandpass filter |
FR2736480B1 (en) | 1995-07-05 | 1997-09-19 | France Telecom | OPTICAL SIGN COLORING DEVICE |
IT1277397B1 (en) | 1995-07-31 | 1997-11-10 | Pirelli Cavi S P A Ora Pirelli | WAVE LENGTH MULTIPLATION TELECOMMUNICATION SYSTEM AND METHOD WITH CONTROLLED OUTPUT CHANNEL SEPARATION |
GB9516017D0 (en) | 1995-08-04 | 1995-10-04 | Stc Submarine Systems Ltd | Optical level control in wavelength add-drop multiplexing branching units |
WO1997006614A1 (en) | 1995-08-04 | 1997-02-20 | Alcatel Alsthom Compagnie Generale D'electricite | Add/drop multiplexer |
JP3006671B2 (en) | 1995-08-21 | 2000-02-07 | 日本電気株式会社 | Optical branch circuit and transmission line setting method thereof |
JP3463717B2 (en) | 1995-08-24 | 2003-11-05 | 三菱電機株式会社 | WDM optical transmission apparatus and WDM optical transmission system |
FR2738432B1 (en) | 1995-09-01 | 1997-09-26 | Hamel Andre | OPTICAL COMPONENT SUITABLE FOR MONITORING A MULTI-WAVELENGTH LENGTH AND INSERTION-EXTRACTION MULTIPLEXER USING THE SAME, APPLICATION TO OPTICAL NETWORKS |
US5680490A (en) | 1995-09-08 | 1997-10-21 | Lucent Technologies Inc. | Comb splitting system and method for a multichannel optical fiber communication network |
US5625478A (en) | 1995-09-14 | 1997-04-29 | Lucent Technologies Inc. | Optically restorable WDM ring network using simple add/drop circuitry |
US5629992A (en) | 1995-09-14 | 1997-05-13 | Bell Communications Research, Inc. | Passband flattening of integrated optical filters |
JP3356365B2 (en) | 1995-09-19 | 2002-12-16 | ケイディーディーアイ株式会社 | Optical ADM device |
DE19535368C2 (en) | 1995-09-25 | 1998-04-30 | Bosch Gmbh Robert | Fuel injection device for internal combustion engines |
US5631758A (en) | 1995-10-26 | 1997-05-20 | Lucent Technologies Inc. | Chirped-pulse multiple wavelength telecommunications system |
JPH09116490A (en) | 1995-10-16 | 1997-05-02 | Fujitsu Ltd | Branch device for optical multiplex system |
NL1001441C2 (en) | 1995-10-18 | 1997-04-22 | Nederland Ptt | Coupling device for coupling optical connections. |
IT1277204B1 (en) * | 1995-10-19 | 1997-11-05 | Pirelli S P A Ora Pirelli Cavi | TRANSPARENT OPTICAL COMMUNICATION NETWORK WITH SELF-PROTECTED RING |
US5808763A (en) | 1995-10-31 | 1998-09-15 | Jds Fitel Inc. | Optical demultiplexor |
US5808764A (en) | 1995-12-28 | 1998-09-15 | Lucent Technologies, Inc. | Multiple star, passive optical network based on remote interrogation of terminal equipment |
US5615289A (en) | 1995-12-07 | 1997-03-25 | Jds Fitel Inc. | Bandpass optical filter |
CA2165119C (en) | 1995-12-13 | 2006-10-03 | Vincent Delisle | Antiresonant waveguide apparatus for periodically selecting a series of at least one optical wavelength from an incoming light signal |
US5737104A (en) | 1995-12-18 | 1998-04-07 | Dicon Fiberoptics | Wavelength division multiplexer and demultiplexer |
JP3039347B2 (en) | 1995-12-27 | 2000-05-08 | 日立電線株式会社 | Optical component with switching function and waveguide filter used for the same |
FR2743424B1 (en) | 1996-01-09 | 1998-03-27 | Instruments Sa | WAVELENGTH ROUTER N X N, OPTICAL ROUTING PROCESS AND ASSOCIATED COMMUNICATIONS NETWORK |
US5608825A (en) | 1996-02-01 | 1997-03-04 | Jds Fitel Inc. | Multi-wavelength filtering device using optical fiber Bragg grating |
US5629995A (en) | 1996-02-01 | 1997-05-13 | Jds Fitel Inc. | Wavelength filter arrangements for use in fiber optics |
IT1282063B1 (en) | 1996-02-05 | 1998-03-09 | Pirelli Cavi S P A Ora Pirelli | NODE IN AN OPTICAL SIGNAL TRANSMISSION NETWORK AND METHOD FOR PRESERVING COMMUNICATION IN THE EVENT OF A FAILURE |
US5751456A (en) | 1996-02-20 | 1998-05-12 | Lucent Technologies Inc. | Multiwavelength add/drop multiplexer |
US5673129A (en) | 1996-02-23 | 1997-09-30 | Ciena Corporation | WDM optical communication systems with wavelength stabilized optical selectors |
US5748349A (en) | 1996-03-27 | 1998-05-05 | Ciena Corp. | Gratings-based optical add-drop multiplexers for WDM optical communication system |
US5982518A (en) | 1996-03-27 | 1999-11-09 | Ciena Corporation | Optical add-drop multiplexers compatible with very dense WDM optical communication systems |
US5742416A (en) | 1996-03-28 | 1998-04-21 | Ciena Corp. | Bidirectional WDM optical communication systems with bidirectional optical amplifiers |
US5940208A (en) | 1996-04-02 | 1999-08-17 | Corning Incorporated | Switchable fiber optic device for fiber transmission system and components thereof |
US5920412A (en) | 1996-04-24 | 1999-07-06 | Bellsouth Corporation | Method and apparatus for signal routing in an optical network and an ATM system |
US5774606A (en) | 1996-05-17 | 1998-06-30 | Lucent Technologies, Inc. | Optical fiber transmission system with a passive optical router |
US5912751A (en) | 1996-05-28 | 1999-06-15 | Lucent Technologies Inc. | Fiber optic network using space and wavelength multiplexed data channel arrays |
US5793507A (en) | 1996-05-31 | 1998-08-11 | Lucent Technologies Inc. | Discretely chirped multiple wavelength optical source for use in a passive optical network telecommunications system |
US5812306A (en) | 1996-06-14 | 1998-09-22 | Ciena Corporation | Bidirectional WDM optical communication systems with bidirectional optical amplifiers |
US5748350A (en) | 1996-06-19 | 1998-05-05 | E-Tek Dynamics, Inc. | Dense wavelength division multiplexer and demultiplexer devices |
US5721796A (en) | 1996-06-21 | 1998-02-24 | Lucent Technologies Inc. | Optical fiber cross connect with active routing for wavelength multiplexing and demultiplexing |
US5838851A (en) | 1996-06-24 | 1998-11-17 | Trw Inc. | Optical-loop signal processing using reflection mechanisms |
US5801858A (en) | 1996-06-25 | 1998-09-01 | Northern Telecom Limited | Optical transmission systems using optical amplifiers and wavelength division multiplexing |
JP2985780B2 (en) | 1996-07-05 | 1999-12-06 | 日本電気株式会社 | Wavelength cross-connect device |
US5774245A (en) | 1996-07-08 | 1998-06-30 | Worldcom Network Services, Inc. | Optical cross-connect module |
JPH1032562A (en) | 1996-07-16 | 1998-02-03 | Fujitsu Ltd | Optical add/drop circuit |
US6005697A (en) | 1996-07-23 | 1999-12-21 | Macro-Vision Communications, L.L.C. | Multi-wavelength cross-connect optical network |
GB9617907D0 (en) | 1996-08-28 | 1996-10-09 | British Telecomm | Communications network |
JPH1078528A (en) | 1996-09-03 | 1998-03-24 | Fujitsu Ltd | Optical multiplexer/demultiplexer and wavelength division multiplexing module |
US5943150A (en) * | 1996-09-30 | 1999-08-24 | Regents Of The University Of California | Massively parallel processor networks with optical express channels |
US6208443B1 (en) | 1996-10-03 | 2001-03-27 | International Business Machines Corporation | Dynamic optical add-drop multiplexers and wavelength-routing networks with improved survivability and minimized spectral filtering |
EP0835001B1 (en) | 1996-10-05 | 1999-11-03 | Oerlikon Contraves AG | Channel allocation method in data transmission in the optical frequency range |
US5930016A (en) | 1996-10-10 | 1999-07-27 | Tellabs Operations, Inc. | Upgradable modular wavelength division multiplexer |
US5751454A (en) | 1996-10-10 | 1998-05-12 | Northern Telecom Limited | Wavelength bypassed ring networks |
US5754321A (en) | 1996-10-15 | 1998-05-19 | Lucent Technologies Inc. | Add/drop optical circuit for a wavelength-division multiplexed network |
FR2755253B1 (en) | 1996-10-24 | 1998-11-27 | Alsthom Cge Alcatel | WAVELENGTH MULTIPLEX CHANNEL EXTRACTION-INSERTION DEVICE |
US5778118A (en) | 1996-12-03 | 1998-07-07 | Ciena Corporation | Optical add-drop multiplexers for WDM optical communication systems |
US5867289A (en) | 1996-12-24 | 1999-02-02 | International Business Machines Corporation | Fault detection for all-optical add-drop multiplexer |
TW349717U (en) * | 1996-12-30 | 1999-01-01 | Winbond Electronics Corp | Method & apparatus for detecting surge noise in signal processor |
US5796502A (en) | 1997-01-06 | 1998-08-18 | Haller, Jr.; John L. | Multiple independent/dependent monochromatic light frequency fiber optic communication system and method |
US5915051A (en) * | 1997-01-21 | 1999-06-22 | Massascusetts Institute Of Technology | Wavelength-selective optical add/drop switch |
US5812711A (en) | 1997-01-29 | 1998-09-22 | Lucent Technologies Inc. | Magnetostrictively tunable optical fiber gratings |
US5986783A (en) | 1997-02-10 | 1999-11-16 | Optical Networks, Inc. | Method and apparatus for operation, protection, and restoration of heterogeneous optical communication networks |
US5920411A (en) | 1997-02-14 | 1999-07-06 | Duck; Gary S. | Optical multiplexing/demultiplexing device |
US5938309A (en) | 1997-03-18 | 1999-08-17 | Ciena Corporation | Bit-rate transparent WDM optical communication system with remodulators |
US5986782A (en) * | 1997-05-29 | 1999-11-16 | Ciena Corporation | Signal-to-noise monitoring in WDM optical communication systems |
US5982517A (en) | 1997-06-02 | 1999-11-09 | Fishman Consulting | Method and system for service restoration in optical fiber communication networks |
US6181850B1 (en) | 1997-07-11 | 2001-01-30 | Kabushiki Kaisha Shinkosha | Optical device |
US6069719A (en) * | 1997-07-30 | 2000-05-30 | Ciena Corporation | Dynamically reconfigurable optical add-drop multiplexers for WDM optical communication systems |
US6631018B1 (en) * | 1997-08-27 | 2003-10-07 | Nortel Networks Limited | WDM optical network with passive pass-through at each node |
US6122095A (en) | 1997-08-29 | 2000-09-19 | Lucent Technologies Inc. | Wavelength-selective and loss-less optical add/drop multiplexer |
US5978114A (en) | 1997-08-29 | 1999-11-02 | Amphenol Corporation | Modular cascaded Mach-Zehnder DWDM components |
US6122096A (en) | 1997-08-29 | 2000-09-19 | Lucent Technologies Inc. | Expandable wavelength-selective and loss-less optical add/drop system |
US6041152A (en) | 1997-09-02 | 2000-03-21 | Amphenol Corporation | Multi-channel fiber optic communications system and multiplexer/demultiplexer arrangement therefor |
US6281997B1 (en) | 1997-09-11 | 2001-08-28 | Ciena Corporation | Dense WDM optical multiplexer and demultiplexer |
US6002503A (en) * | 1997-10-23 | 1999-12-14 | Ciena Corporation | Optical add/drop multiplexer |
US5999290A (en) | 1997-10-27 | 1999-12-07 | Lucent Technologies Inc. | Optical add/drop multiplexer having complementary stages |
US6243179B1 (en) | 1997-10-31 | 2001-06-05 | Agere Systems Optoelectronics Guardian Corp. | Banded add drop device |
US6115157A (en) * | 1997-12-24 | 2000-09-05 | Nortel Networks Corporation | Methods for equalizing WDM systems |
US5870212A (en) | 1998-01-14 | 1999-02-09 | Mciworldcom, Inc. | Self-healing optical network |
FI980328A (en) * | 1998-02-13 | 1999-08-14 | Nokia Networks Oy | Optical telecommunication network |
US6043914A (en) | 1998-06-29 | 2000-03-28 | Mci Communications Corporation | Dense WDM in the 1310 nm band |
US6118563A (en) | 1998-03-25 | 2000-09-12 | Corning Incorporated | Methods and apparatus for reducing four-wave mixing |
US6055112A (en) | 1998-04-24 | 2000-04-25 | Campbell-Miller; Margot | Lensed cascaded optical filter |
US5959749A (en) | 1998-05-20 | 1999-09-28 | Nortel Networks Corporation | Optical add/drop multiplexer/demultiplexer |
US6614567B1 (en) * | 1998-08-31 | 2003-09-02 | Lucent Technologies Inc. | Apparatus and method for upgrading the capacity of wavelength division multiplexed optical networks |
US6348984B1 (en) * | 1998-11-05 | 2002-02-19 | Ciena Corporation | Optical add/drop multiplexer |
US7110673B2 (en) * | 2000-08-30 | 2006-09-19 | Telefonaktiebolaget Lm Ericsson (Publ) | Optical communication system |
FR2814902B1 (en) * | 2000-10-02 | 2002-12-20 | Cit Alcatel | SWITCH FOR OPTICAL TRANSMISSION NETWORK USING WAVELENGTH MULTIPLEXING |
FR2818080B1 (en) * | 2000-12-07 | 2003-03-28 | Cit Alcatel | DEMULTIPLEXING / MULTIPLEXING SYSTEM IN INTERLEAVED BANDS |
US20020118417A1 (en) * | 2001-02-05 | 2002-08-29 | Barry Richard A. | Flexible optical add/drop architecture |
JP4551007B2 (en) * | 2001-02-06 | 2010-09-22 | 富士通株式会社 | Raman amplifier and optical transmission system using the same |
US6333798B1 (en) | 2001-02-13 | 2001-12-25 | Seneca Networks, Inc. | Bidirectional WDM optical communication network |
JP4167073B2 (en) * | 2001-04-11 | 2008-10-15 | トランスモード ホールディング エービー | Optical add / drop node and optical WDM network |
US7218805B2 (en) * | 2001-07-13 | 2007-05-15 | Transmode Holding Ab | WDM ring network for flexible connections |
-
1997
- 1997-08-27 US US08/917,784 patent/US6631018B1/en not_active Expired - Lifetime
-
1998
- 1998-08-20 CA CA002245403A patent/CA2245403C/en not_active Expired - Lifetime
- 1998-08-24 EP EP98306764A patent/EP0905936A3/en not_active Ceased
- 1998-08-26 AU AU81923/98A patent/AU751527B2/en not_active Expired
- 1998-08-27 JP JP28040198A patent/JP4240602B2/en not_active Expired - Lifetime
-
1999
- 1999-08-12 US US09/372,575 patent/US6529300B1/en not_active Expired - Lifetime
- 1999-08-12 US US09/372,577 patent/US6084694A/en not_active Expired - Lifetime
- 1999-08-12 US US09/372,576 patent/US6556321B1/en not_active Expired - Lifetime
- 1999-11-19 US US09/443,329 patent/US6493117B1/en not_active Expired - Lifetime
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2000
- 2000-12-07 US US09/730,549 patent/US6563615B2/en not_active Expired - Lifetime
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2002
- 2002-12-20 US US10/323,679 patent/US6748174B2/en not_active Expired - Lifetime
- 2002-12-20 US US10/323,685 patent/US6751418B2/en not_active Expired - Lifetime
- 2002-12-20 US US10/323,682 patent/US6757498B2/en not_active Expired - Lifetime
- 2002-12-20 US US10/323,680 patent/US6892032B2/en not_active Expired - Lifetime
- 2002-12-20 US US10/323,683 patent/US6775479B2/en not_active Expired - Lifetime
- 2002-12-20 US US10/323,681 patent/US6795652B2/en not_active Expired - Lifetime
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2003
- 2003-01-22 AU AU2003200193A patent/AU2003200193B2/en not_active Expired
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US20020126334A1 (en) | 2002-09-12 |
US6493117B1 (en) | 2002-12-10 |
US6748174B2 (en) | 2004-06-08 |
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US20030161635A1 (en) | 2003-08-28 |
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AU751527B2 (en) | 2002-08-22 |
US20030123881A1 (en) | 2003-07-03 |
US6751418B2 (en) | 2004-06-15 |
US6631018B1 (en) | 2003-10-07 |
US20030170029A1 (en) | 2003-09-11 |
AU2003200193B2 (en) | 2004-05-06 |
US6892032B2 (en) | 2005-05-10 |
US20030170026A1 (en) | 2003-09-11 |
EP0905936A2 (en) | 1999-03-31 |
US20030215238A1 (en) | 2003-11-20 |
US6563615B2 (en) | 2003-05-13 |
JP4240602B2 (en) | 2009-03-18 |
EP0905936A3 (en) | 2001-04-04 |
US6775479B2 (en) | 2004-08-10 |
US6757498B2 (en) | 2004-06-29 |
CA2245403C (en) | 2003-01-28 |
JPH11331224A (en) | 1999-11-30 |
US6529300B1 (en) | 2003-03-04 |
US6084694A (en) | 2000-07-04 |
US6556321B1 (en) | 2003-04-29 |
AU8192398A (en) | 1999-03-25 |
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