Laser power monitoring in a heat-assisted magnetic recording device using a resistive sensor and high-frequency laser modulation
文献类型：专利
| 作者 | KIELY, JAMES DILLON; DUDA, JOHN CHARLES; FLETCHER, PATRICK CARL; DOROBANTU, ANDREI; TRANTHAM, JON D. |
| 发表日期 | 2019-09-10 |
| 专利号 | US10408674 |
| 著作权人 | SEAGATE TECHNOLOGY LLC |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Laser power monitoring in a heat-assisted magnetic recording device using a resistive sensor and high-frequency laser modulation |
| 英文摘要 | An apparatus comprises a light source configured to generate light, and a modulator coupled to the light source and configured to modulate the light above a predetermined frequency. A slider is configured for heat-assisted magnetic recording and to receive the modulated light. A resistive sensor is integral to the slider and subject to heating by absorption of electromagnetic radiation and conduction of heat. Measuring circuitry is coupled to the resistive sensor and configured to measure a response of the resistive sensor due to absorbed electromagnetic radiation and not from the heat conduction. The measuring circuitry may further be configured to determine output optical power of the light source using the measured resistive sensor response. |
| 公开日期 | 2019-09-10 |
| 申请日期 | 2019-03-13 |
| 状态 | 授权 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/34540]  |
| 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 | KIELY, JAMES DILLON,DUDA, JOHN CHARLES,FLETCHER, PATRICK CARL,et al. Laser power monitoring in a heat-assisted magnetic recording device using a resistive sensor and high-frequency laser modulation. US10408674. 2019-09-10. |
入库方式： OAI收割
来源：西安光学精密机械研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。