Stabilizing device of laser light quantity
文献类型：专利
| 作者 | NOZAKI TAKESHI; MIURA KUNIHIKO |
| 发表日期 | 1985-11-22 |
| 专利号 | JP1985235575A |
| 著作权人 | TOSHIBA KK |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Stabilizing device of laser light quantity |
| 英文摘要 | PURPOSE:To stabilize the quantity of laser light and to reduce the failure rate of a semiconductor laser by turning off a switching means provided between a comparison output between a converted output of the semiconductor laser and an optical output setting reference voltage and an integration output in response to the said comparison output level while the laser is modulated and turning on it at a pre-period with no modulation or a part of the period. CONSTITUTION:The semiconductor laser diode 344 consists of a light emitting laser diode main body 259 and a monitor photodiode 260 being a photodetecting means monitoring the output beam intensity from the laser diode 259. A high frequency transistor 257 applies optical modulation of the laser diode 259. A drain D and a source S are brought into a low resistance of high speed analog switches 254, 255, 256 to provide modulation to the laser diode 259 when a high level voltage is impressed to a gate G and they ate turned on. When a low level voltage is impressed to the gate G, the resistance is higher conversely and they are turned off. |
| 公开日期 | 1985-11-22 |
| 申请日期 | 1984-05-07 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/59363]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | TOSHIBA KK |
| 推荐引用方式 GB/T 7714 | NOZAKI TAKESHI,MIURA KUNIHIKO. Stabilizing device of laser light quantity. JP1985235575A. 1985-11-22. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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