Semiconductor laser optical system
文献类型：专利
| 作者 | NOGUCHI MASARU |
| 发表日期 | 1987-10-12 |
| 专利号 | JP1987232185A |
| 著作权人 | FUJI PHOTO FILM CO LTD |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Semiconductor laser optical system |
| 英文摘要 | PURPOSE:To reduce the effect of naturally emitted light, to spread the output region of laser oscillated light having a large effect in a low light emitting region and to converge the oscillated light into a sufficiently small spot, by providing a polarizing filter on a light path for light emitted from a semiconductor laser. CONSTITUTION:A semiconductor laser 1 emits laser oscillated light in correspondence with an applied current and naturally emitting light. The laser oscillated light is linearly polarized in the direction parallel to a junction plane 3a. Therefore, about 100% of the oscillated light transmits through a polarizing filter 6. Meanwhile, since the naturally emitting light is randomly polarized light, the amount of the light transmitting through the polarizing filter 6 is about l/2 the incident light. Therefore, when the light, which has passed the polarization filter 6, is used, the laser oscillated light reaches the dominant light emitting region in comparison with the case, where the light, which has not passed through the polarization filter 6 is used.Thus, the light even in the low light emitting region can be sufficiently converged at a converging position A. |
| 公开日期 | 1987-10-12 |
| 申请日期 | 1986-04-01 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/68850]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | FUJI PHOTO FILM CO LTD |
| 推荐引用方式 GB/T 7714 | NOGUCHI MASARU. Semiconductor laser optical system. JP1987232185A. 1987-10-12. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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