Hybrid Y-junction laser array
文献类型：专利
| 作者 | WELCH, DAVID; SCIFRES, DONALD R.; CROSS, PETER; STREIFER, WILLIAM |
| 发表日期 | 1989-02-28 |
| 专利号 | US4809288 |
| 著作权人 | SDL, INC. |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Hybrid Y-junction laser array |
| 英文摘要 | A semiconductor laser array having a plurality of waveguides at least some of which are directly joined at Y-junctions. The region near the Y-junctions provides a phase boundary condition in which lightwaves propagating in adjacent waveguides are in phase. A combination of strong and weak waveguiding is provided, with strong waveguides that eliminate evanescent coupling from occuring at least in the Y-junction regions, and with weak guides near one or both end facets permitting evanescent coupling. The evanescent coupling between adjacent weak waveguides preserves the in phase relationship that was established in the Y-junction regions, resulting in a diffraction limited single lobe far field output. Alternatively, even without evanescent coupling, the modes can adjust their phases in the weak waveguides, where the propagation constant is less tightly specified by the geometry. |
| 公开日期 | 1989-02-28 |
| 申请日期 | 1987-03-04 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/44521]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | SDL, INC. |
| 推荐引用方式 GB/T 7714 | WELCH, DAVID,SCIFRES, DONALD R.,CROSS, PETER,et al. Hybrid Y-junction laser array. US4809288. 1989-02-28. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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