Semiconductor laser device
文献类型:专利
作者 | TAMATOSHI KUNIYOSHI; ISHII MITSUO |
发表日期 | 1987-11-21 |
专利号 | JP1987269374A |
著作权人 | MITSUBISHI ELECTRIC CORP |
国家 | 日本 |
文献子类 | 发明申请 |
其他题名 | Semiconductor laser device |
英文摘要 | PURPOSE:To make a constant light output of window side go out in a state having extensive return light by providing a lightreceiving element, through which a part of the light is received by making it as monitor light, at positions other than the rear of a chip in a package. CONSTITUTION:A half mirror or prism 32 receives a light output thrown from the front end surface of a semiconductor laser chip 1 and throws a part of the light output on a monitor photo-diode 2 that is mounted at a wall face of cap 4. Futher, the other light output is thrown out on the outside through a window glass 3. In the case of a normal APC drive, the monitor photo-diode 2 can receive the light output thrown from the front end surface of laser chip as monitor light. Thus even in a state having extensive return light, a drive circuit keeps a front light output constant and even though it is applied to the sensors of various writings, readings, and the like, it is capable of holding stable laser oscillation characteristics. |
公开日期 | 1987-11-21 |
申请日期 | 1986-05-16 |
状态 | 失效 |
源URL | [http://ir.opt.ac.cn/handle/181661/77555] ![]() |
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 | TAMATOSHI KUNIYOSHI,ISHII MITSUO. Semiconductor laser device. JP1987269374A. 1987-11-21. |
入库方式: OAI收割
来源:西安光学精密机械研究所
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