Optical waveguide having a variable refractive index and an optical device having such an optical waveguide
文献类型：专利
| 作者 | TANAKA, KAZUHIRO, C/O FUJITSU LIMITED; WAKAO, KIYOHIDE, C/O FUJITSU LIMITED |
| 发表日期 | 1992-09-23 |
| 专利号 | EP0505289A2 |
| 著作权人 | FUJITSU LIMITED |
| 国家 | 欧洲专利局 |
| 文献子类 | 发明申请 |
| 其他题名 | Optical waveguide having a variable refractive index and an optical device having such an optical waveguide |
| 英文摘要 | The waveguide comprises a substrate (10) of a semiconductor material doped to a first conductivity type, a multiple quantum well layer (12) provided on the substrate for guiding an optical beam, a clad layer (16) doped to a second conductivity type and provided on the multiple quantum well layer for confining the optical beam, a first electrode (20a, 20b) provided on the upper major surface of the clad layer for injecting carriers of a first type into the quantum well layer, and a second electrode (18) provided on the lower major surface of the substrate for injecting carriers of a second type into the quantum well layer. The multiple quantum well layer (12) comprises an alternate stacking of: a quantum well layer having a composition set to provide a smallest band gap that is possible under a constraint that the quantum well layer maintains a lattice constant with the substrate and a thickness set with respect to the optical energy of the optical beam such that a discrete quantum level of carriers is formed in the quantum well layer with an energy level larger than the optical energy by about 50 meV; and a barrier layer having a band gap substantially larger than the band gap of the quantum well layer. |
| 公开日期 | 1992-09-23 |
| 申请日期 | 1992-03-20 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/64471]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | FUJITSU LIMITED |
| 推荐引用方式 GB/T 7714 | TANAKA, KAZUHIRO, C/O FUJITSU LIMITED,WAKAO, KIYOHIDE, C/O FUJITSU LIMITED. Optical waveguide having a variable refractive index and an optical device having such an optical waveguide. EP0505289A2. 1992-09-23. |
入库方式： OAI收割
来源：西安光学精密机械研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。