Method and apparatus for determining the absolute noise figure of optical amplifiers
文献类型：专利
| 作者 | TZENG, LIANG DAVID |
| 发表日期 | 1992-09-16 |
| 专利号 | EP0486205A3 |
| 著作权人 | AT&T CORP. |
| 国家 | 欧洲专利局 |
| 文献子类 | 发明申请 |
| 其他题名 | Method and apparatus for determining the absolute noise figure of optical amplifiers |
| 英文摘要 | A test apparatus and method is disclosed for determining the absolute noise figure of an optical amplifier. The apparatus comprises an optical receiver (22) and functions to measure the output power of a test noise source (12), such as a lamp or LED. A plot of input power versus output power yields a linear relationship, with a y-intercept at the test apparatus (first) noise floor (No). An optical amplifier (40) to be tested is then inserted in the signal path between the noise source and the receiver. A new plot is generated and a second system noise floor value is determined (N1). The difference between the two noise floor values (N1 - No) is then defined as the amplifier absolute noise figure (NA). The inventive technique is equally applicable to semiconductor and fiber optical amplifiers. |
| 公开日期 | 1992-09-16 |
| 申请日期 | 1991-11-06 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/62432]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | AT&T CORP. |
| 推荐引用方式 GB/T 7714 | TZENG, LIANG DAVID. Method and apparatus for determining the absolute noise figure of optical amplifiers. EP0486205A3. 1992-09-16. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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