半導体レーザ出力制御装置
文献类型：专利
| 作者 | 杉村 圭一; 竹山 佳伸; 島田 和之 |
| 发表日期 | 1997-02-27 |
| 专利号 | JP2612856B2 |
| 著作权人 | 株式会社リコー |
| 国家 | 日本 |
| 文献子类 | 授权发明 |
| 其他题名 | 半導体レーザ出力制御装置 |
| 英文摘要 | PURPOSE:To inhibit the variation of an output by a simple circuit at low cost by supplying correction currents at a predetermined time constant when a semiconductor laser is turned ON and providing a correction means correcting the variation of the output of the semiconductor laser. CONSTITUTION:With a semiconductor-laser driver circuit 10, a modulation signal from a phase correction circuit 21 is applied to a base for a transistor 48 through a buffer 49, a semiconductor laser 1 is turned ON-OFF while the semiconductor laser 1 is supplied with driving currents by transistors 46, 47 when the semiconductor laser 1 is turned ON, and the variation of an output from the semiconductor laser is corrected by correction currents to a base for the transistor 47 from a differentiating circuit. Differential waveforms at time constants determined by resistors 64, 66, 68 for each differentiating circuit and capacitors 58-60 are generated at points B, C, D by a modulation signal at a point A. Transistors 61-63 flow currents I1-I3 proportional to a waveform generated in one direction in these waveforms to a point E by the waveform, potential at a point G is increased, and Iop is reduced. A waveform generated in the +direction cuts off the transistors 61-63. Time constants and the quantities of currents are set so that each I1-I3 each corrects the semiconductor laser |
| 公开日期 | 1997-05-21 |
| 申请日期 | 1987-03-03 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/33283]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | 株式会社リコー |
| 推荐引用方式 GB/T 7714 | 杉村 圭一,竹山 佳伸,島田 和之. 半導体レーザ出力制御装置. JP2612856B2. 1997-02-27. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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