Optical device, optical semiconductor device, and optical information processor comprising them
文献类型：专利
| 作者 | NAKANISHI, NAOKI; TAKASUKA, SHOICHI; IJIMA, SHINICHI; NAKANISHI, HIDEYUKI |
| 发表日期 | 2003-03-17 |
| 专利号 | SG87514A1 |
| 著作权人 | MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
| 国家 | 新加坡 |
| 文献子类 | 发明申请 |
| 其他题名 | Optical device, optical semiconductor device, and optical information processor comprising them |
| 英文摘要 | An optical semiconductor device comprising an emitted beam branching section (61) which branches an emitted light beam from a laser device (51), a reflected light beam branching section (71) which branches a reflected light beam from an information recording medium (3) into light beams different from each other in focused state, servo signal sensing photodetectors (43, 45) which receive the branched reflected light beam in a defocused state, a first diffraction grating provided in the emitted light beam branching section for diffracting the reflected light beam having passed through the reflected light beam flux branching section, and a signal sensing photodetector (47) which receives the reflected light beam diffracted by the first diffraction grating. |
| 公开日期 | 2002-04-16 |
| 申请日期 | 2001-07-04 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/33742]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
| 推荐引用方式 GB/T 7714 | NAKANISHI, NAOKI,TAKASUKA, SHOICHI,IJIMA, SHINICHI,et al. Optical device, optical semiconductor device, and optical information processor comprising them. SG87514A1. 2003-03-17. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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