Fault locator for long haul transmission system
US8175454B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2008 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | Sep 15, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0279
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system and methods include generating an optical time domain reflectrometry signal; transmitting the optical time domain reflectrometry signal on a first fiber path in a first direction through at least one optical amplifier; receiving a reflection of the optical time domain reflectrometry signal on the first fiber path in a second direction opposite the first direction; transmitting the reflected optical time domain reflectrometry signal on a second fiber path in the second direction, where the second fiber path is not the first fiber path; and determining a location of a fault on the first fiber path based on the reflected optical time domain reflectrometry signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.