High efficiency grating coupling for light delivery in EAMR
文献类型：专利
| 作者 | LI, RUOLIN; HU, YUFENG; TRAN, UT |
| 发表日期 | 2012-06-12 |
| 专利号 | US8200054 |
| 著作权人 | WESTERN DIGITAL TECHNOLOGIES, INC. |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | High efficiency grating coupling for light delivery in EAMR |
| 英文摘要 | A magnetic head comprising a waveguide coupler for coupling incident electromagnetic (EM) radiation into a waveguide is disclosed. The waveguide coupler includes a bottom clad layer and a waveguide core layer formed above the bottom clad layer. An interface between the bottom clad layer and the waveguide core layer includes a first grating having a first period and a first etch depth, which are configured to couple a first portion of the incident EM radiation into the waveguide core layer. The waveguide coupler can further comprise a top clad layer formed above the waveguide core layer. An interface between the waveguide core layer and the top clad layer includes a second grating having a second period and a second etch depth. The second period and the second etch depth are configured to couple a second portion of the incident EM radiation into the waveguide core layer. |
| 公开日期 | 2012-06-12 |
| 申请日期 | 2009-04-19 |
| 状态 | 授权 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/37414]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | WESTERN DIGITAL TECHNOLOGIES, INC. |
| 推荐引用方式 GB/T 7714 | LI, RUOLIN,HU, YUFENG,TRAN, UT. High efficiency grating coupling for light delivery in EAMR. US8200054. 2012-06-12. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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