Semiconductor laser control circuit and laser light source
文献类型：专利
| 作者 | KOISHI, KENJI; KONNO, KOHJYU |
| 发表日期 | 2002-12-03 |
| 专利号 | US6490302 |
| 著作权人 | MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Semiconductor laser control circuit and laser light source |
| 英文摘要 | A semiconductor laser control circuit of the invention can modulate a light power level among a plurality of set levels including a first level, a second level lower than the first level, and a third level lower than the first level but higher than the second level. The semiconductor laser control circuit includes: a circuit portion for generating a first signal based on a light power level actually detected by a light detector in a first period in which a light power level of laser radiation is to be modulated among the first level, the second level, and the third level; a circuit portion for generating a second signal based on a light power level actually detected by the light detector in a second period in which a light power level of the laser radiation is to be modulated between the first level and the second level; a circuit portion for generating a third signal based on a light power level actually detected by the light detector in a third period in which the light power level of the laser radiation is to be at the third level; and a signal processor for determining a light power level of the first level and a light power level of the second level by operation, based on the first to third signals. The light power level is adjusted based on an output of the signal processor. |
| 公开日期 | 2002-12-03 |
| 申请日期 | 2000-10-27 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/33701]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
| 推荐引用方式 GB/T 7714 | KOISHI, KENJI,KONNO, KOHJYU. Semiconductor laser control circuit and laser light source. US6490302. 2002-12-03. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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