Fault isolation technique for optical networks
US7079764B2 · kind B2 · utility
2Cited by
12References
12Claims
0Family size
Inventor
Key dates
| Filing date | Aug 27, 2001 |
| Grant date | Jul 18, 2006 |
| Priority date | — |
| Expiry date | Feb 27, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2210/075
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method is provided for isolating faults in an optical network having a plurality of partial regenerators. The method includes: transmitting an optical signal through the optical network; determining an error rate for the optical signal at an egress point of the optical network; sequentially introducing a dither control signal into the optical signal at each of the plurality of partial regenerators; and monitoring the error rate for the optical signal at the egress point of the optical network; thereby isolating where a fault occurs in the optical network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.