GB0206564D0 - Optical access method and optical node add/drop system - Google Patents
Optical access method and optical node add/drop systemInfo
- Publication number
- GB0206564D0 GB0206564D0 GB0206564A GB0206564A GB0206564D0 GB 0206564 D0 GB0206564 D0 GB 0206564D0 GB 0206564 A GB0206564 A GB 0206564A GB 0206564 A GB0206564 A GB 0206564A GB 0206564 D0 GB0206564 D0 GB 0206564D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- optical
- information signal
- optical information
- wdm
- access method
- 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.)
- Ceased
Links
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
Abstract
Apparatus and method capable of adding an optical information signal at a particular transmission wavelength to a Wave Division Multiplexing (WDM) optical medium that already contains an optical information signal at the transmission wavelength is described. The addition of the optical information signal is achieved without any requirement to OEO (Optical/Electrical/Optical) convert the optical information signal already present within the WDM optical medium. The WDM optical medium may comprise an optical network wherein one or more optical nodes provide the means for adding the optical information signal. Such apparatus and described method provide an ideal way for developing flexible, scaleable and a cost effective communication networks.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0206564A GB0206564D0 (en) | 2002-03-20 | 2002-03-20 | Optical access method and optical node add/drop system |
AU2003224239A AU2003224239A1 (en) | 2002-03-20 | 2003-03-19 | Optical access method and optical add/crop apparatus |
PCT/GB2003/001194 WO2003081825A1 (en) | 2002-03-20 | 2003-03-19 | Optical access method and optical add/crop apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0206564A GB0206564D0 (en) | 2002-03-20 | 2002-03-20 | Optical access method and optical node add/drop system |
Publications (1)
Publication Number | Publication Date |
---|---|
GB0206564D0 true GB0206564D0 (en) | 2002-05-01 |
Family
ID=9933357
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0206564A Ceased GB0206564D0 (en) | 2002-03-20 | 2002-03-20 | Optical access method and optical node add/drop system |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2003224239A1 (en) |
GB (1) | GB0206564D0 (en) |
WO (1) | WO2003081825A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8666250B2 (en) | 2008-03-11 | 2014-03-04 | Telefonaktiebolaget L M Ericsson (Publ) | Optical access network and nodes |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9401488D0 (en) * | 1994-01-26 | 1994-03-23 | British Telecomm | Optical communications |
EP0668674B1 (en) * | 1994-02-17 | 2003-05-21 | Kabushiki Kaisha Toshiba | Optical wavelength division multiplexed network system |
US5995257A (en) * | 1997-10-15 | 1999-11-30 | Mci Communications Corporation | Add/drop multiplexer for multiwavelength pulse oriented optical communications systems |
JP3549716B2 (en) * | 1997-11-28 | 2004-08-04 | 日本電気株式会社 | Optical ADM device |
FR2774536B1 (en) * | 1998-02-02 | 2000-03-10 | Alsthom Cge Alcatel | METHOD FOR DETECTING ONE OR MORE FREE CHANNELS IN AN OPTICAL TIME MULTIPLEX, A DEVICE FOR IMPLEMENTING AND AN APPLICATION OF THE DEVICE |
-
2002
- 2002-03-20 GB GB0206564A patent/GB0206564D0/en not_active Ceased
-
2003
- 2003-03-19 WO PCT/GB2003/001194 patent/WO2003081825A1/en not_active Application Discontinuation
- 2003-03-19 AU AU2003224239A patent/AU2003224239A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
AU2003224239A1 (en) | 2003-10-08 |
WO2003081825A1 (en) | 2003-10-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AT | Applications terminated before publication under section 16(1) |