Laser drive unit and information recording/reproducing apparatus
文献类型：专利
| 作者 | KUREBAYASHI, MASAAKI; ASADA, AKIHIRO; KAKU, TOSHIMITSU; OONUKI, HIDEO; HOSHINO, TAKASHI; KANDOU, HIDEHIKO |
| 发表日期 | 2002-11-26 |
| 专利号 | US6487154 |
| 著作权人 | HITACHI CONSUMER ELECTRONICS CO., LTD. |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Laser drive unit and information recording/reproducing apparatus |
| 英文摘要 | A laser drive (LD) unit 1 according to the present invention is provided with a laser drive waveform controller 6, into which information for setting the laser drive is entered from a controller 2, for generating a laser drive waveform on the basis of that information and supplying an indicated amperage; an LD current setting unit 7 for setting a laser drive current matching the indicated amperage; an LD current output unit 8 for varying the laser drive current on the basis of the laser drive waveform and supplying the current so varied to a laser diode 3; and a current setting corrector 9, into which a monitor signal obtained at the time of monitoring the laser beam emission from the laser diode 3 is monitored, for correcting the laser drive current set by the current setting unit 7 by using that monitor signal to adjust the power of the laser diode 3. The laser drive waveform controller 6, current setting unit 7, current output unit 8 and current setting corrector 9 are formed on the same substrate. |
| 公开日期 | 2002-11-26 |
| 申请日期 | 2000-01-25 |
| 状态 | 授权 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/33648]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | HITACHI CONSUMER ELECTRONICS CO., LTD. |
| 推荐引用方式 GB/T 7714 | KUREBAYASHI, MASAAKI,ASADA, AKIHIRO,KAKU, TOSHIMITSU,et al. Laser drive unit and information recording/reproducing apparatus. US6487154. 2002-11-26. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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