Add-drop multiplexer
US6429974B1 · kind B1 · utility
13Cited by
7References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 11, 2001 |
| Grant date | Aug 6, 2002 |
| Priority date | — |
| Expiry date | May 11, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0024
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus are contemplated for dropping and adding a user-chosen wavelength sub-band in a band of wavelengths. Methods and apparatus are contemplated for separating and dropping individual wavelengths from a wavelength sub-band, and adding the individual wavelengths back to the wavelength sub-band. An OADM is contemplated that combines a wide-band OADM stage and a narrow-band OADM stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.