| Single longitudinal mode semiconductor laser | |
| MITO IKUO | |
| 1988-11-17 | |
| 著作权人 | NEC CORPORATION |
| 专利号 | DE3474616D1 |
| 国家 | 德国 |
| 文献子类 | 授权发明 |
| 其他题名 | Single longitudinal mode semiconductor laser |
| 英文摘要 | The semiconductor laser diode comprises a distributed Bragg reflector formed on a substrate. The reflector includes an optical waveguide sandwiched between first and second cladding regions formed over the substrate. The optical waveguide has a corrugated region extending within the optical waveguide in a direction parallel to the surface of the substrate. The thickness of the corrugated region varies in a prescribed period and the refractive index of the corrugated region differs from that of the optical waveguide. An optically active layer formed over the substrate is butt-jointed to the optical waveguide, and emits light beams when a current is injected into it. This single longitudinal mode semiconductor laser has high performance features. Its equivalent reflecting power is increased by so structuring the grating section that it is highly efficient in coupling the periodic structure and light. |
| 公开日期 | 1988-11-17 |
| 申请日期 | 1984-05-08 |
| 状态 | 失效 |
| 内容类型 | 专利 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/42210]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | NEC CORPORATION |
| 推荐引用方式 GB/T 7714 | MITO IKUO. Single longitudinal mode semiconductor laser. DE3474616D1. 1988-11-17. |
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