System and method for photonic facility and line protection switching using wavelength translation
US5777761A · kind A · utility
80Cited by
57References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 28, 1996 |
| Grant date | Jul 7, 1998 |
| Priority date | — |
| Expiry date | Jun 28, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0083
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system and method for photonic facility and line protection switching in an optical network to permit fault tolerant operation. The optical network comprises components whose operation is monitored by a controller. If the controller determines an optical transmission line in a signal path has failed, the controller will re-route the signal path through a spare, or protect component. Alternatively, the controller can re-route the signal path through a frequency translator and another optical transmission line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.