Optical amplifier and optical transmission apparatus
US5680246A · kind A · utility
39Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1995 |
| Grant date | Oct 21, 1997 |
| Priority date | — |
| Expiry date | Mar 28, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1001
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The optical amplifier includes a doped fiber doped with a rare earth element, a pumping light source, means for introducing signal light and pumping light into the doped fiber, detection means for detecting whether or not amplified signal light is included in light outputted from the doped fiber, and means for decreasing the intensity of the pumping light when it is detected that amplified signal light is not included. It can be possible to eliminate an influence of an optical surge arising from a characteristic of the doped fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.