Laser beam emission apparatus
文献类型：专利
| 作者 | ISHIHARA, HISAHIRO |
| 发表日期 | 1999-11-02 |
| 专利号 | US5978404 |
| 著作权人 | SANKYO SEIKI MFG. CO., LTD |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Laser beam emission apparatus |
| 英文摘要 | A laser beam emission apparatus that may be used as a universal optical pickup laser light source. The apparatus may be used in various applications including recording/reproduction of data to/from various types of optical disks in various recording/reproducing modes. The apparatus includes a first semiconductor laser chip that emits a first laser beam at a first wavelength, and a second semiconductor laser chip that emits a second laser beam at a second wavelength different from the first wavelength. The emitted second laser beam has a plane of polarization that is perpendicular to the plane of polarization of the emitted first laser beam. The apparatus further includes a polarized beam splitter that transmits one of the laser beams and reflects the other laser beam, and a semiconductor substrate that has the laser chips and the polarized beam splitter mounted thereon. The polarized beam splitter is mounted on the semiconductor substrate in a manner such that a polarized light division surface of the polarized beam splitter is perpendicular to the substrate surface of the semiconductor substrate, and the principal optical axes of the first and second laser beams intersect at a single point on the polarized light division surface and also lie in the same plane. The plane is positioned apart from the substrate surface of the semiconductor substrate, and is perpendicular to the polarized light division surface of the polarized beam splitter. |
| 公开日期 | 1999-11-02 |
| 申请日期 | 1997-11-18 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/33577]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | SANKYO SEIKI MFG. CO., LTD |
| 推荐引用方式 GB/T 7714 | ISHIHARA, HISAHIRO. Laser beam emission apparatus. US5978404. 1999-11-02. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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