GB2425420B - Optical transmission device - Google Patents
Optical transmission deviceInfo
- Publication number
- GB2425420B GB2425420B GB0613957A GB0613957A GB2425420B GB 2425420 B GB2425420 B GB 2425420B GB 0613957 A GB0613957 A GB 0613957A GB 0613957 A GB0613957 A GB 0613957A GB 2425420 B GB2425420 B GB 2425420B
- Authority
- GB
- United Kingdom
- Prior art keywords
- transmission device
- optical transmission
- optical
- transmission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005540 biological transmission Effects 0.000 title 1
- 230000003287 optical effect Effects 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
- H04J14/0209—Multi-stage arrangements, e.g. by cascading multiplexers or demultiplexers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0504853A GB2415556B (en) | 2003-04-15 | 2003-04-15 | Optical transmission device |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0613957D0 GB0613957D0 (en) | 2006-08-23 |
GB2425420A GB2425420A (en) | 2006-10-25 |
GB2425420B true GB2425420B (en) | 2007-02-14 |
Family
ID=36955612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0613957A Expired - Fee Related GB2425420B (en) | 2003-04-15 | 2003-04-15 | Optical transmission device |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2425420B (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000206362A (en) * | 1999-01-19 | 2000-07-28 | Hitachi Ltd | OPTICAL ADM(Add/Drop Multiplexing) NODE DEVICE |
US6323975B1 (en) * | 1997-05-13 | 2001-11-27 | Nokia Networks Oy | Optical add/drop device |
US6538782B1 (en) * | 1998-02-02 | 2003-03-25 | Fujitsu Limited | Light branching/inserting apparatus and light branching apparatus using wavelength selection filter |
-
2003
- 2003-04-15 GB GB0613957A patent/GB2425420B/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6323975B1 (en) * | 1997-05-13 | 2001-11-27 | Nokia Networks Oy | Optical add/drop device |
US6538782B1 (en) * | 1998-02-02 | 2003-03-25 | Fujitsu Limited | Light branching/inserting apparatus and light branching apparatus using wavelength selection filter |
JP2000206362A (en) * | 1999-01-19 | 2000-07-28 | Hitachi Ltd | OPTICAL ADM(Add/Drop Multiplexing) NODE DEVICE |
Also Published As
Publication number | Publication date |
---|---|
GB2425420A (en) | 2006-10-25 |
GB0613957D0 (en) | 2006-08-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20180415 |