-
文献类型：专利
| 作者 | YOSHIMOTO KYOSUKE; ITO OSAMU |
| 发表日期 | 1990-12-14 |
| 专利号 | JP1990060074B2 |
| 著作权人 | MITSUBISHI ELECTRIC CORP |
| 国家 | 日本 |
| 文献子类 | 授权发明 |
| 其他题名 | - |
| 英文摘要 | PURPOSE:To prevent the change of a peak output entailing the temperature and change with time of quantization efficiency by detecting and holding the peak output at a time when a semiconductor laser is pulse-modulated on the starting of pulse modulation and positively feeding back and controlling subsequent modulated pulse amplitude by the detection and holding of the peak output. CONSTITUTION:An output from a semiconductor laser 1 is monitored by a photodetector 2. A bottom output from the laser 1 monitored by a peak detecting circuit 4 is compared with reference voltage by a comparison circuit 5, and fed back negatively to a semiconductor laser driving circuit 12 through an amplifier 6 and a clamping circuit 1 On the other hand, a peak output at a time when the semiconductor laser is pulse-modulated is holded by a sample holding circuit 7 only on the starting of pulse modulation. An amplitude control circuit 9 controls modulated pulse amplitude in response to a value obtained by subtracting bottom-output reference voltage from the holding value. |
| 公开日期 | 1990-12-14 |
| 申请日期 | 1984-04-27 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/68719]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | MITSUBISHI ELECTRIC CORP |
| 推荐引用方式 GB/T 7714 | YOSHIMOTO KYOSUKE,ITO OSAMU. -. JP1990060074B2. 1990-12-14. |
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。