Optical add/drop multiplexer including reconfigurable filters and system including the same
US8554081B2 · kind B2 · utility
4Cited by
26References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2008 |
| Grant date | Oct 8, 2013 |
| Priority date | — |
| Expiry date | May 6, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0039
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical add/drop multiplexer (OADM) and system incorporating the same for maintaining loading of WDM channels with loading signals or information signals when signals are added or dropped. The OADM may include reconfigurable band pass filters having a transmittance characteristic controllable using a command signal. Selective filtering of loading signals and/or information signals received from branch and trunk paths allows an output WDM signal including information signals on utilized channels and loading signals on all unutilized channels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.