Semiconductor laser driver
文献类型：专利
| 作者 | TAKEDA KATSUNOBU; KATASE YOSHIHIRO; HATSUTORI OSAMU; OONUKI HIDEO; MIURA MICHIO |
| 发表日期 | 1984-03-27 |
| 专利号 | JP1984052440A |
| 著作权人 | HITACHI SEISAKUSHO KK |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Semiconductor laser driver |
| 英文摘要 | PURPOSE:To avoid the noise of a semiconductor laser, by providing a comparison circuit rectifying a generated noise and inverting its output with the rectified output and a circuit stopping the noise detection for a prescribed period after an output of the comparison circuit is inverted. CONSTITUTION:The noise signal after passing through a high pass filter is amplified as an amplifier 8. Then, the signal is rectified at a full-wave rectifier circuit 9. There exist various noise waveforms and the noise has no constant waveform, the noise may or may not be detected at a half-wave rectifier circuit. The noise signal is full-wave-rectified, compared at a comparison circuit 10, where an output of a high or low level is obtained with a rectified voltage level. Every time a monostable mltivibrator 11 is operated, the output is inverted. This output switches a changeover switch 13. When the changeover switch 13 is opened, a reference voltage of a comparison circuit 5 depends on 4A, 4C and a light emitting diode 1A is driven so as to obtain an optical output corresponding to the reference voltage. |
| 公开日期 | 1984-03-27 |
| 申请日期 | 1982-09-17 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/68668]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | HITACHI SEISAKUSHO KK |
| 推荐引用方式 GB/T 7714 | TAKEDA KATSUNOBU,KATASE YOSHIHIRO,HATSUTORI OSAMU,et al. Semiconductor laser driver. JP1984052440A. 1984-03-27. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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