Multispot type optical pickup device
文献类型：专利
| 作者 | YAMANAKA YUTAKA |
| 发表日期 | 1986-08-18 |
| 专利号 | JP1986184738A |
| 著作权人 | NEC CORP |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Multispot type optical pickup device |
| 英文摘要 | PURPOSE:To form two kinds of different spots by forming a semiconductor laser of which the light source has plural luminous points on the same substrate and in which the plural adjacent luminous points among the luminous points having astigmatism. CONSTITUTION:An n-GaAs layer 2 is formed on the p-GaAs substrate 1 and grooves 11-14 for internal stripes are formed by reactive ion etching or the like. A p-Al0.4Ga0.6As layer 3, an Al0.1Ga0.9As active layer 4, an n-Al0.4Ga0.6As layer 5 and an n-GaAs layer 6 are successively formed again. After an n side electrode 7 and a p side electrode 8 are formed, grooves 9 are provided between the laser elements to separate the lasers, then the independent driving of the elements separated by the grooves 9 is made possible. The width of the grooves for the internal stripes is so selected that the luminous point of the laser having the groove 11 for the internal stripe has hardly astigmatism and that the luminous points of the individual adjacent lasers having the grooves 12-14 for the internal stripes have the astigmatism. |
| 公开日期 | 1986-08-18 |
| 申请日期 | 1985-02-13 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/59404]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | NEC CORP |
| 推荐引用方式 GB/T 7714 | YAMANAKA YUTAKA. Multispot type optical pickup device. JP1986184738A. 1986-08-18. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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