Surface-emitting laser element, surface-emitting laser array, optical scanner device, and image forming apparatus
文献类型：专利
| 作者 | HARASAKA, KAZUHIRO; SATO, SHUNICHI; JIKUTANI, NAOTO; SUGAWARA, SATORU |
| 发表日期 | 2017-10-18 |
| 专利号 | EP2323231B1 |
| 著作权人 | RICOH COMPANY, LTD. |
| 国家 | 欧洲专利局 |
| 文献子类 | 授权发明 |
| 其他题名 | Surface-emitting laser element, surface-emitting laser array, optical scanner device, and image forming apparatus |
| 英文摘要 | A disclosed surface-emitting laser element (100) includes a substrate (101), multiple semiconductor layers stacked on the substrate including a resonator structure including an active layer (105), a semiconductor multilayer mirror on the resonator structure (107), and a confined structure (108a,108b) where a current passage region (108b) is enclosed by at least an oxide (108a) generated by oxidation of part of a selective oxidation layer containing aluminum, an electrode (113) provided around an emission region, and a dielectric film (115A,115B) provided in a peripheral portion within the emission region and outside a central portion of the emission region to make a reflectance of the peripheral portion lower than that of the central portion. The dielectric film is arranged such that a reflectance of a high-order transverse mode in a second direction is higher than that in a first direction, and a width of the current passage region in the first direction is greater than that in the second direction. |
| 公开日期 | 2017-10-18 |
| 申请日期 | 2010-11-04 |
| 状态 | 授权 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/34071]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | RICOH COMPANY, LTD. |
| 推荐引用方式 GB/T 7714 | HARASAKA, KAZUHIRO,SATO, SHUNICHI,JIKUTANI, NAOTO,et al. Surface-emitting laser element, surface-emitting laser array, optical scanner device, and image forming apparatus. EP2323231B1. 2017-10-18. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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