Method and apparatus for measuring noise figure in optical amplifiers
US6751012B1 · kind B1 · utility
2Cited by
11References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2001 |
| Grant date | Jun 15, 2004 |
| Priority date | — |
| Expiry date | Aug 31, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/0731
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An apparatus for measuring the noise figure in optical amplifiers employed for large bandwidth applications such as dense wavelength division multiplexing systems. A booster amplifier coupled to a light source increases the average power associated with a plurality of optical channels. A periodic filter is coupled to the booster amplifier to reflect noise between each of the optical channels across the predetermined bandwidth. An amplifier under test is coupled to the periodic filter and the noise figure associated with the amplifier under test is measured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.