Optical amplifier, control circuit, and method of controlling optical amplifier
US8472110B2 · kind B2 · utility
1Cited by
9References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 29, 2009 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Sep 23, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/0683
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical amplifier includes a semiconductor optical amplifier which has a gain that changes in accordance with a wavelength of input light and which generates a noise light power having different levels in accordance with a drive current, a detector that detects an optical power branched from output light of the semiconductor optical amplifier, and a controller that controls supply of the drive current based on the optical power such that an output light power of the semiconductor amplifier is a sum of a target signal light power and the noise light power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.