Optical amplification repeating system
US5282074A · kind A · utility
18Cited by
4References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 1993 |
| Grant date | Jan 25, 1994 |
| Priority date | — |
| Expiry date | Feb 1, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/07955
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Disclosed is an optical amplification repeating system having at least one repeater disposed in the middle of an optical transmission line connecting two terminal stations in which a light beam output from an optical amplifier is split into at least two split beams, one of the split beams is converted into an electric signal by optical/electrical conversion and the signal-to-noise ratio is detected on the basis of the electric signal. With such arrangement, the signal-to-noise ratio in the repeater can be measured in an in-service state, i.e., while the system is in operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.