Setting laser current based on modulation level of an optical power sensor measurement
文献类型：专利
| 作者 | RAUSCH, TIM; GAGE, EDWARD CHARLES; CHRISTENSEN, JOSHUA WARD; LAMMERS, TODD MICHAEL |
| 发表日期 | 2018-04-26 |
| 专利号 | US20180114542A1 |
| 著作权人 | SEAGATE TECHNOLOGY LLC |
| 国家 | 美国 |
| 文献子类 | 发明申请 |
| 其他题名 | Setting laser current based on modulation level of an optical power sensor measurement |
| 英文摘要 | Before writing to a heat-assisted magnetic recording medium, a DC signal modulated with an AC signal is applied to a laser of a read/write head. A modulation level of an optical power sensor is measured, the optical power sensor being coupled to detect optical output of the laser in response to the modulated current. A target value of the DC signal that causes the modulation levels to reach a predetermined value between zero and a maximum value is determined and used to set a bias current for subsequent activation of the laser based. |
| 公开日期 | 2018-04-26 |
| 申请日期 | 2017-08-08 |
| 状态 | 授权 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/62304]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | SEAGATE TECHNOLOGY LLC |
| 推荐引用方式 GB/T 7714 | RAUSCH, TIM,GAGE, EDWARD CHARLES,CHRISTENSEN, JOSHUA WARD,et al. Setting laser current based on modulation level of an optical power sensor measurement. US20180114542A1. 2018-04-26. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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