Semiconductor optical amplifier
文献类型：专利
| 作者 | YAMAKAWA HIDEAKI; SUZUKI NOBUO; KOSEKI TAKESHI |
| 发表日期 | 1990-07-19 |
| 专利号 | JP1990184828A |
| 著作权人 | TOSHIBA CORP |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Semiconductor optical amplifier |
| 英文摘要 | PURPOSE:To easily execute gain control with high accuracy by monitoring an internal gain by the signal from the optical detecting regions provided on the light input/output side of the gain control region of a laser amplifier and controlling the current quantity of the gain control according to the monitor output thereof. CONSTITUTION:The laser amplifier A consists of clad layers 20, 21 which are different in channel from each other. The upper clad layer 21 forms a 3-electrode structure. Electrodes 22, 24 on the input side and output side are optical detecting regions where the intensity of the light signal propagating in the respective active regions is detected as current. The central region is the gain control region 23. The two signal component amplitudes obtd. from the electrode 22 and the electrode 24 are divided by a divider 25 of a signal processing section. The value obtd. in such a manner and a reference signal REF are compared by a differential amplifier 26 to obtain an error signal. A current source 27 which supplies driving current to the electrode 23 is controlled according to the error signal. The gain control is thus easily executed with the high accuracy. |
| 公开日期 | 1990-07-19 |
| 申请日期 | 1989-01-12 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/73789]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | TOSHIBA CORP |
| 推荐引用方式 GB/T 7714 | YAMAKAWA HIDEAKI,SUZUKI NOBUO,KOSEKI TAKESHI. Semiconductor optical amplifier. JP1990184828A. 1990-07-19. |
入库方式： OAI收割
来源：西安光学精密机械研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。