Control method of laser diode
文献类型：专利
| 作者 | IMAMURA TOMOATSU; SHIMADA KAZUYUKI; SENMA TOSHITAKA |
| 发表日期 | 1989-05-15 |
| 专利号 | JP1989122182A |
| 著作权人 | RICOH CO LTD |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Control method of laser diode |
| 英文摘要 | PURPOSE:To improve the anti-temperature characteristics of emission intensity by making the temperature characteristics of reference voltage the same as those of a photo-diode. CONSTITUTION:A laser diode LD and a photo-diode PD monitoring the emission intensity of the laser diode are coupled optically, and the temperature characteristics of reference voltage Vr generated by a reference voltage generator 20 are made the same as those of the photo-diode PD generating monitor currents Im. Consequently, when an ambient temperature changes, monitor currents Im are drifted by the temperature characteristics of the photo-diode PD, and reference voltage Vr generated by the reference voltage generator 20 similarly alters even when monitor voltage Vm varies in response to the drift of monitor currents Im, thus preventing the effect of a temperature change. Accordingly, the emission intensity of the laser diode LD can be controlled stably regardless of the ambient temperature. |
| 公开日期 | 1989-05-15 |
| 申请日期 | 1987-11-06 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/59542]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | RICOH CO LTD |
| 推荐引用方式 GB/T 7714 | IMAMURA TOMOATSU,SHIMADA KAZUYUKI,SENMA TOSHITAKA. Control method of laser diode. JP1989122182A. 1989-05-15. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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