Two wavelength laser module and optical pickup device
文献类型：专利
| 作者 | OGASAWARA, MASAKAZU; SATO, MAKOTO; MIYACHI, MAMORU; KIMURA, YOSHINORI |
| 发表日期 | 2005-07-20 |
| 专利号 | EP1555662A2 |
| 著作权人 | PIONEER CORPORATION |
| 国家 | 欧洲专利局 |
| 文献子类 | 发明申请 |
| 其他题名 | Two wavelength laser module and optical pickup device |
| 英文摘要 | A two wavelength laser module (10) is made up of a semiconductor laser assembly (11) that includes a first semiconductor laser (LD1) for emitting a first light beam of a first polarization direction and a second semiconductor laser (LD2) for emitting a second light beam of a second polarization direction. The second light beam is emitted approximately in the same direction as that of the first light beam and has a shorter wavelength than that of the first light beam. The first and second semiconductor lasers are disposed on a substrate. The module includes a polarization diffraction element (12) for causing a divergence angle (θ1) of the first light beam to differ from that (θ2) of the second light beam. |
| 公开日期 | 2005-07-20 |
| 申请日期 | 2005-01-13 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/61192]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | PIONEER CORPORATION |
| 推荐引用方式 GB/T 7714 | OGASAWARA, MASAKAZU,SATO, MAKOTO,MIYACHI, MAMORU,et al. Two wavelength laser module and optical pickup device. EP1555662A2. 2005-07-20. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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