Multi-wavelength light detecting apparatuses having serially arranged grating directional couplers
文献类型：专利
| 作者 | SAKATA, HAJIME, C/O CANON KABUSHIKI KAISHA; TAKEUCHI, SHINSUKE, C/O CANON KABUSHIKI KAISHA |
| 发表日期 | 1992-07-29 |
| 专利号 | EP0496348A2 |
| 著作权人 | CANON KABUSHIKI KAISHA |
| 国家 | 欧洲专利局 |
| 文献子类 | 发明申请 |
| 其他题名 | Multi-wavelength light detecting apparatuses having serially arranged grating directional couplers |
| 英文摘要 | In a multi-wavelength light detecting and/or emitting apparatus, there are provided at least one of at least of a first unit of a first directional coupler having a grating for an optical coupling function and a photodetector having a photoelectric conversion function and at least a second unit of a second directional coupler having a grating for an optical coupling function and a semiconductor laser, and a common light waveguide extending parallel with the unit in a light propagating direction. The first directional coupler and the photodetector are serially arranged in the light propagating direction and parallel with the common light waveguide, and the second directional coupler and the semiconductor laser are serially arranged in the light propagating direction and parallel with the common light waveguide. When there are formed a plurality of the first units and the gratings have different pitches, wavelength multiplexed light signals can be simultaneously detected per each wavelength with an equal detection performance. When there are formed a plurality of the second units and the gratings have different pitches, laser lights of different wavelengths can be emitted from a single emission end of the common waveguide and the semiconductor lasers can be independently driven. |
| 公开日期 | 1992-07-29 |
| 申请日期 | 1992-01-21 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/65827]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | CANON KABUSHIKI KAISHA |
| 推荐引用方式 GB/T 7714 | SAKATA, HAJIME, C/O CANON KABUSHIKI KAISHA,TAKEUCHI, SHINSUKE, C/O CANON KABUSHIKI KAISHA. Multi-wavelength light detecting apparatuses having serially arranged grating directional couplers. EP0496348A2. 1992-07-29. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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