WDM ring transmission system having reduced adjacent channel cross-talk
US6021233A · kind A · utility
10Cited by
2References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 12, 1998 |
| Grant date | Feb 1, 2000 |
| Priority date | — |
| Expiry date | Feb 12, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0246
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A WDM ring configuration having reduced adjacent channel cross-talk is disclosed. In the WDM ring, an add/drop element having a filter for selecting an optical signal at a desired wavelength is spaced from another add/drop element having a filter adding an optical signal at an adjacent wavelength within a channel plan by at least one add/drop element that adds/drops an optical signal at a wavelength which is not next to either the optical signal at the desired wavelength or the adjacent wavelength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.