Photoeletcronic device with built-in monitoring photodetector and monitoring photodetector
文献类型：专利
| 作者 | SAKAKI SHIGEO |
| 发表日期 | 1989-05-26 |
| 专利号 | JP1989134982A |
| 著作权人 | HITACHI LTD |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Photoeletcronic device with built-in monitoring photodetector and monitoring photodetector |
| 英文摘要 | PURPOSE:To enable monitoring of laser rays even if a polarity changes on a monitoring side by a method wherein a monitoring photodetector composed of two photodiodes is constructed in a back-to-back structure. CONSTITUTION:A copper heat sink 2 is fixed to a central part of the upper face of a rectangular copper stem 1 through a brazing material. A laser diode 4 is fixed to a side face of the heat sink 2 through the intermediary of a sub- mount 3. Laser rays 5 are emitted from both the top and the bottom end of the diode 4. A monitoring photodetector 9 is fixed to the primary face of the stem The photodetector 9 receives the laser rays 5 and serves as a monitoring element which detects an optical output. The element 9 is composed of two photodiodes which are built monolithically in a back-to-back structure. Therefore, the element 9 can detect laser rays even if the impressed voltage changes in polarity. |
| 公开日期 | 1989-05-26 |
| 申请日期 | 1987-11-20 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/63120]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | HITACHI LTD |
| 推荐引用方式 GB/T 7714 | SAKAKI SHIGEO. Photoeletcronic device with built-in monitoring photodetector and monitoring photodetector. JP1989134982A. 1989-05-26. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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