Distributed feedback laser device high in coupling efficiency with optical fiber
文献类型：专利
| 作者 | OKUDA, TETSURO |
| 发表日期 | 2001-07-10 |
| 专利号 | US6259718 |
| 著作权人 | RENESAS ELECTRONICS CORPORATION |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Distributed feedback laser device high in coupling efficiency with optical fiber |
| 英文摘要 | A distributed feedback laser device comprises an optical waveguide having one end facet serving as a beam emission surface and the other end facet serving as a reflection surface, an active layer formed between the beam emission surface and the reflection surface, and a diffraction grating formed so as to extend along the active layer in the optical waveguide. The active layer has a first region located nearer to the beam emission surface than to the reflection surface and a second region located nearer to the reflection surface than to the beam emission surface. The first region is narrower in width than the second region. The diffraction grating has first and second portions located along the first and the second regions, respectively. The first portion is longer in pitch than the second portion. |
| 公开日期 | 2001-07-10 |
| 申请日期 | 1998-11-25 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/46278]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | RENESAS ELECTRONICS CORPORATION |
| 推荐引用方式 GB/T 7714 | OKUDA, TETSURO. Distributed feedback laser device high in coupling efficiency with optical fiber. US6259718. 2001-07-10. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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