Semiconductor laser driving circuit
文献类型：专利
| 作者 | ASADA KENICHIRO |
| 发表日期 | 1991-12-19 |
| 专利号 | JP1991288870A |
| 著作权人 | RICOH CO LTD |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Semiconductor laser driving circuit |
| 英文摘要 | PURPOSE:To hold the light emitting intensity of a semiconductor laser always at a constant level by successively switching plural constant current sources and controlling the current supply of respective constant current sources so that the detection output of the light emitting intensity of the semiconductor laser becomes a prescribed value. CONSTITUTION:The semiconductor laser driving circuit is provided with a detection means 16 for detecting the light emitting intensity of the semiconductor laser 10 and a current control means 4 for successively switching plural constant current sources A, B and controlling the current supply of respective current sources A, B. The means 16 detects the light emitting intensity of the laser 10 and supplies its detection output to the means 4. When the light emitting intensity of the laser 10 is changed in accordance with a change in peripheral temperature, the means 4 successively switches the sources A, B and controls the current supply of respective sources A, B so that respective detection outputs of the means 16 become respective prescribed values. Thus, the light emitting intensity of the laser 10 is held at the constant value. |
| 公开日期 | 1991-12-19 |
| 申请日期 | 1990-04-06 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/69101]  |
| 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 | ASADA KENICHIRO. Semiconductor laser driving circuit. JP1991288870A. 1991-12-19. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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