Optical fiber protection switch
US7313296B2 · kind B2 · utility
1Cited by
2References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2005 |
| Grant date | Dec 25, 2007 |
| Priority date | — |
| Expiry date | Nov 30, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0212
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical fiber protection switch comprises an optical interface and an optical switching system. The optical interface exchanges optical signals with optical fibers that are deployed in a ring configuration. The optical switching system exchanges the optical signals with the optical interface. The optical switching system performs ring switching of the optical signals in the optical domain in response to a first fault. The optical switching system performs span switching of the optical signals in the optical domain in response to a second fault.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.