Semiconductor laser module
文献类型：专利
| 作者 | ISHIKAWA SHIGETA |
| 发表日期 | 1990-05-18 |
| 专利号 | JP1990130985A |
| 著作权人 | NIPPON ELECTRIC CO |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Semiconductor laser module |
| 英文摘要 | PURPOSE:To facilitate the optical axis adjustment for cutting down cost by a method wherein a transparent sheet comprising the central part and the peripheral part in different optical thickness is inserted between a semiconductor laser and a lens system. CONSTITUTION:Within a coupling system wherein radiation from a laser diode(LD) pellet 1 is focussed by a lens 2 to be entered into an optical fiber 3, a transparent sheet 4 is inserted between the pellet 1 and the lens 2. The transparent sheet 4 comprising the central and the peripheral part in different thickness, the image forming positions of the beams passing through the central part and those passing through the peripheral part are slipped from each other in the axial direction. Through these procedures, the couple loss is leveled off despite the changes in the intervals between the pellet 1 and the lens 2 so that the LD modules for short interval subjected to the least variability regardless of no adjustment of the LD pellet 1 in the direction of optical axis may be manufactured. Consequently, the adjustment of optical axis as well as the components can be facilitated thereby cutting down cost. |
| 公开日期 | 1990-05-18 |
| 申请日期 | 1988-11-11 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/70887]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | NIPPON ELECTRIC CO |
| 推荐引用方式 GB/T 7714 | ISHIKAWA SHIGETA. Semiconductor laser module. JP1990130985A. 1990-05-18. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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