Method for monitoring fiber line state, repeater, submarine cable system
US8676053B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2011 |
| Grant date | Mar 18, 2014 |
| Priority date | — |
| Expiry date | May 23, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/032
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention relates to communications technologies, and discloses a method for monitoring the state of a fiber line, a repeater, and a submarine cable system. The repeater includes a first optical amplifier (OA), a second optical amplifier, a first gating unit, a second gating unit, a first coupler, a second coupler, a third coupler, and a fourth coupler. The first coupler, the fourth coupler, and the first gating unit form an in-to-in loopback path between the input end of the first OA and the input end of the second OA; and the second coupler, the third coupler, and the second gating unit form an out-to-out loopback path between the output end of the first OA and the output end of the second OA.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.