Vertical cavity, surface-emitting laser with expanded cavity
文献类型：专利
| 作者 | JEWELL, JACK L.; OLBRIGHT, GREG R. |
| 发表日期 | 1994-03-15 |
| 专利号 | US5295147 |
| 著作权人 | MOSS, JEROME S. |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Vertical cavity, surface-emitting laser with expanded cavity |
| 英文摘要 | A vertical-cavity, surface-emitting semiconductor laser having a substrate, an active layer of a semiconductor material which is adapted to generate light on a surface of the substrate, a pair of mirrors at opposite sides of the active layer and means for expanding the diameter of the output beam. Such means include a spacer layer of an optically passive material between the active layer and at least one of the mirrors, and mirror layers of reduced difference in index of refraction, interface layers having intermediate indices of refraction placed between mirror layers, in either case expanding the effective optical cavity length to at least 100 times the thickness of the active material in the active layer. Another means is anti-waveguiding which directly expands the diameter of the beam. The expanded cavity provides an output beam of larger diameter while maintaining stable single mode emission. The spacer layer may be a separate layer or region over the substrate or at least a portion of the substrate. |
| 公开日期 | 1994-03-15 |
| 申请日期 | 1992-12-22 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/45936]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | MOSS, JEROME S. |
| 推荐引用方式 GB/T 7714 | JEWELL, JACK L.,OLBRIGHT, GREG R.. Vertical cavity, surface-emitting laser with expanded cavity. US5295147. 1994-03-15. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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