| Short-pulse light source, laser light emission method, optical device, optical disc device, and optical pickup | |
| ISHIMOTO, TSUTOMU; FUJIIE, KAZUHIKO | |
| 2012-04-03 | |
| 著作权人 | SONY CORPORATION |
| 专利号 | US8149661 |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Short-pulse light source, laser light emission method, optical device, optical disc device, and optical pickup |
| 英文摘要 | Directed to freely adjusting an emission period of a semiconductor laser. In the present invention, pulsed light serving as pulse-shaped laser light (LL) is emitted from a semiconductor laser (3), and a laser drive voltage (DJ) that is generated on the basis of a pulse signal (SL) and that has pulse-shaped drive voltage pulses (DJw) is applied to the semiconductor laser (3). At this time, a short-pulse light source (51) varies a voltage period (TV) corresponding to an interval between the drive voltage pulses (DJw), thereby varying a set period (TS) corresponding to an interval between generated signal pulses (SLw) in the pulse signal (SL). |
| 公开日期 | 2012-04-03 |
| 申请日期 | 2009-09-16 |
| 状态 | 失效 |
| 内容类型 | 专利 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/32797]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | SONY CORPORATION |
| 推荐引用方式 GB/T 7714 | ISHIMOTO, TSUTOMU,FUJIIE, KAZUHIKO. Short-pulse light source, laser light emission method, optical device, optical disc device, and optical pickup. US8149661. 2012-04-03. |
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