Semiconductor laser drive circuit and information recording device
文献类型：专利
| 作者 | USUI, TAKASHI |
| 发表日期 | 2013-03-14 |
| 专利号 | WO2013035196A1 |
| 著作权人 | KABUSHIKI KAISHA TOSHIBA |
| 国家 | 世界知识产权组织 |
| 文献子类 | 发明申请 |
| 其他题名 | Semiconductor laser drive circuit and information recording device |
| 英文摘要 | According to an embodiment, a semiconductor laser drive circuit includes first and second high-speed current sources, a low-speed current source, and a coupler. The first and second high-speed current sources have the same or substantially the same characteristics, and the low-speed current source has a characteristic of rising slower than the high-speed current sources. The coupler includes a first output side transmission path for the first high-speed current source having a first characteristic impedance, a second output side transmission path for the second high-speed current source having the first characteristic impedance, and a third output side transmission path for the low-speed current source, and combines signals flowing through the first to third output side transmission paths and outputs the result to the semiconductor laser. The coupler has two resistors of the same resistance value arranged and connected in series between the first and second output side transmission paths, the third output side transmission path is connected to an intermediate point where the resistors are connected, and the first and second output side transmission paths are extended by a predetermined distance by lines having a second characteristic impedance, which is greater than the first characteristic impedance, and connected. |
| 公开日期 | 2013-03-14 |
| 申请日期 | 2011-09-09 |
| 状态 | 未确认 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/61727]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | KABUSHIKI KAISHA TOSHIBA |
| 推荐引用方式 GB/T 7714 | USUI, TAKASHI. Semiconductor laser drive circuit and information recording device. WO2013035196A1. 2013-03-14. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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