Low loss semiconductor directional coupler switches including gain method of switching light using same
文献类型：专利
| 作者 | SOREF, RICHARD A. |
| 发表日期 | 1991-04-02 |
| 专利号 | US5004447 |
| 著作权人 | UNITED STATES OF AMERICA, THE, AS REPRESENTED BY THE SECRETARY OF THE AIR FORCE |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Low loss semiconductor directional coupler switches including gain method of switching light using same |
| 英文摘要 | In multiple quantum well directional couplers, non-centralized input and output legs, occupying major portions of the switches, are continuously forward biased, to produce sufficient gain in light intensity therein to overcome losses in the centralized portions, to in turn provide a transparent (ODB loss) two-by-two coupler switch. Short segments of the centralized coupling portion occupying minor portions of the switches, are switched between forward bias states and zero bias states to provide light beam switching. Thus these switches employ both carrier gain and carrier refraction. The large changes in the index of refraction enable extremely short, low loss, switches to be fabricated and cascaded if desired. A second group of less preferred switches employ solely the carrier refraction effect, by injecting carriers into the waveguides at high levels, preferably equal to or greater than 1x1018/cm3. |
| 公开日期 | 1991-04-02 |
| 申请日期 | 1989-09-06 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/42123]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | UNITED STATES OF AMERICA, THE, AS REPRESENTED BY THE SECRETARY OF THE AIR FORCE |
| 推荐引用方式 GB/T 7714 | SOREF, RICHARD A.. Low loss semiconductor directional coupler switches including gain method of switching light using same. US5004447. 1991-04-02. |
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。