Optical waveguide grating coupler device
文献类型：专利
| 作者 | SUNAGAWA, HIROSHI |
| 发表日期 | 1992-03-31 |
| 专利号 | US5101459 |
| 著作权人 | FUJIFILM CORPORATION |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Optical waveguide grating coupler device |
| 英文摘要 | An optical waveguide device comprises an optical waveguide for guiding an optical wave therethrough, and a grating coupler, which is located on a surface of the optical waveguide and which couples the guided optical wave traveling in the optical waveguide with an external optical wave. The grating coupler is provided with a plurality of bars, the heights h of which vary linearly in the direction along which the guided optical wave travels. The inclination b of the variation of the bar heights h satisfies the conditionwhere a represents a coefficient which determines a radiation loss coefficient alpha ( alpha =ah2), and L represents the length of the grating coupler, which length is taken in the direction along which the guided optical wave travels. The guided optical wave is radiated very efficiently as an approximately Gaussian beam out of the optical waveguide, or an external optical wave, which takes on the form of a Gaussian beam, is introduced very efficiently into the optical waveguide. |
| 公开日期 | 1992-03-31 |
| 申请日期 | 1991-06-06 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/36043]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | FUJIFILM CORPORATION |
| 推荐引用方式 GB/T 7714 | SUNAGAWA, HIROSHI. Optical waveguide grating coupler device. US5101459. 1992-03-31. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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