Optical integrated circuit and optical apparatus
文献类型：专利
| 作者 | FUKUSHIMA, ATSUKO; HIRA, YASUO; SATO, HIDEMI; KAWAMOTO, KAZUMI; ITO, KENCHI; SHIBA, MASATAKA; ARIMOTO, AKIRA |
| 发表日期 | 1991-12-03 |
| 专利号 | US5070488 |
| 著作权人 | HITACHI, LTD. |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Optical integrated circuit and optical apparatus |
| 英文摘要 | An optical integrated circuit and an optical apparatus used in optical communication or an opto-electronics apparatus such as an optical disk recording apparatus, in which various kinds of aberration caused by wavelength variation of a light source when a semiconductor laser is used as the light source. An aberration correcting grating having such grating pitches as to nearly satisfy the Bragg condition preferably with respect to a certain wavelength of the semiconductor laser beam is used. As a result, lowering of incidence (entrance) and radiation (exit) coupling efficiencies of the grating coupler and aberration such as chromatic aberration can be prevented. Even if a multi-mode semiconductor laser is used as a light source, the characteristics of the optical integrated circuit and optical apparatus do not vary largely. |
| 公开日期 | 1991-12-03 |
| 申请日期 | 1989-06-28 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/35934]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | HITACHI, LTD. |
| 推荐引用方式 GB/T 7714 | FUKUSHIMA, ATSUKO,HIRA, YASUO,SATO, HIDEMI,et al. Optical integrated circuit and optical apparatus. US5070488. 1991-12-03. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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