Semiconductor optical amplification device | |
MAGARI KATSUAKI; OKAMOTO KATSUNARI; NOGUCHI ETSUO; YASAKA HIROSHI; MIKAMI OSAMU; KONDO SUSUMU | |
1991-04-02 | |
著作权人 | NIPPON TELEGR & TELEPH CORP |
专利号 | JP1991076294A |
国家 | 日本 |
文献子类 | 发明申请 |
其他题名 | Semiconductor optical amplification device |
英文摘要 | PURPOSE:To enable outgoing light rays to be effectively incident on an optical fiber by a method wherein an optical waveguide is provided with a first and a second tapered end, and a semiconductor laminated body is provided with a fourth and a fifth semiconductor layer as optical window layers. CONSTITUTION:An optical waveguide 20 is provided with tapered ends E1 and E2, and a semiconductor laminated body 10 is provided with semiconductor layers M1 and M2 as optical window layers. By this setup, as a semiconductor layer 22 forming the optical guide 20 has such a structure that its width W is larger than its thickness T, the size of a spot in term of a light propagation mode on the semiconductor laminated body end face F2 which serves as a light emitting face can be made nearly equal in both the widthwise direction and the thicknesswise direction of the semiconductor layer 22 which constitutes the optical waveguide 20. Therefore, in this case, when an outgoing light ray is transmitted through an optical fiber, the outgoing light ray can be effectively incident on the optical fiber concerned. |
公开日期 | 1991-04-02 |
申请日期 | 1989-08-18 |
状态 | 失效 |
内容类型 | 专利 |
源URL | [http://ir.opt.ac.cn/handle/181661/75884] ![]() |
专题 | 半导体激光器专利数据库 |
作者单位 | NIPPON TELEGR & TELEPH CORP |
推荐引用方式 GB/T 7714 | MAGARI KATSUAKI,OKAMOTO KATSUNARI,NOGUCHI ETSUO,et al. Semiconductor optical amplification device. JP1991076294A. 1991-04-02. |
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