Optical switch including bypass waveguide
文献类型：专利
| 作者 | SAKANO, SHINJI; INOUE, HIROAKI; MATSUMURA, HIROYOSHI; NAKAMURA, HITOSHI; KATSUYAMA, TOSHIO; CHINONE, NAOKI |
| 发表日期 | 1989-03-21 |
| 专利号 | US4813757 |
| 著作权人 | HITACHI, LTD. |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Optical switch including bypass waveguide |
| 英文摘要 | Herein disclosed is a branch type optical switch having three or more optical waveguides capable of being coupled to one another in a coupling region, in which is formed a refractive index changing portion for effecting the function of the branch type optical switch by changing the refractive index thereof. This optical switch has a small coupling loss and an excellent extinction ratio. Also disclosed is an intersection type optical switch having two or more optical waveguides intersecting each other. The input optical waveguide and the output waveguide are connected at their intersection by means of a bypass optical waveguide to construct the above-specified branch type optical switch in the coupling regions of the bypass optical waveguides and the input and output optical waveguides, and the bypass optical waveguide has a curved or polygonal shape. Thus, it is possible to provide a small-sized optical switch which has an excellent extinction ratio and little variability in characteristics. |
| 公开日期 | 1989-03-21 |
| 申请日期 | 1987-11-18 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/35873]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | HITACHI, LTD. |
| 推荐引用方式 GB/T 7714 | SAKANO, SHINJI,INOUE, HIROAKI,MATSUMURA, HIROYOSHI,et al. Optical switch including bypass waveguide. US4813757. 1989-03-21. |
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。