Laser control unit, laser control circuit, and laser-power adjustment method
文献类型：专利
| 作者 | SENGA, HISASHI; MATSUMOTO, TOSHIO; ISHIBASHI, HIROMICHI |
| 发表日期 | 2008-04-29 |
| 专利号 | US7366080 |
| 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 | Laser control unit, laser control circuit, and laser-power adjustment method |
| 英文摘要 | A laser control unit, a laser control circuit and a laser-power adjustment method are provided which are capable of controlling laser power precisely, even if an error is produced in the duty of an optical pulse. A light-receiving element 101 converts the optical pulse into an electric signal and outputs a photo-detection signal; an LPF 114 calculates the average value of the optical pulse, based on the photo-detection signal; a DSP 124 calculates a light-emission power value, based on the average value of the optical pulse and the duty of the optical pulse, and calculates the difference between the light-emission power value and a target power value; an EP-ROM 160 stores a correction value for correcting a calculation which is executed by the DSP 124; the DSP 124 corrects the calculation, based on the correction value, and controls an electric-current value which is supplied to a semiconductor laser 150, based on the calculation result which is obtained from the correction; and a laser drive circuit 40 drives the semiconductor laser 150, based on the electric-current value. |
| 公开日期 | 2008-04-29 |
| 申请日期 | 2004-11-15 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/33916]  |
| 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 | SENGA, HISASHI,MATSUMOTO, TOSHIO,ISHIBASHI, HIROMICHI. Laser control unit, laser control circuit, and laser-power adjustment method. US7366080. 2008-04-29. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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