Quantum well device and apparatus comprising the device
文献类型：专利
| 作者 | BERTHOLD, KURT; LEVI, ANTHONY FREDERIC JOHN; NORDIN, RONALD A.; NOTTENBURG, RICHARD N. |
| 发表日期 | 1991-03-20 |
| 专利号 | EP0417989A2 |
| 著作权人 | AT&T CORP. |
| 国家 | 欧洲专利局 |
| 文献子类 | 发明申请 |
| 其他题名 | Quantum well device and apparatus comprising the device |
| 英文摘要 | The inventive quantum well opto-electronic devices of cavity length LC comprise, in addition to a "gain" section (20), a "loss" section (21) that is optically coupled to the gain section (20) but electrically substantially isolated therefrom. Through change of the electrical bias on the loss section (21) the modal gain of the cavity can be changed. Devices according to the invention are useful in a variety of applications. Exemplarily, by making (in an inventive laser) LC/LA greater than about 20 (LA is the length of the loss section) and making the electrical isolation between the gain section (20) and the loss section (21) greater than about 3kΩ, fast amplitude modulation of the laser radiation is possible. By applying appropriate AR coatings to the cavity of an inventive device, a fast variable-gain optical amplifier can be made. Finally, an inventive laser can be switched electrically between two widely spaced wavelengths, the wavelength difference being at least 10 nm. This makes possible use of inventive devices in apparatus such as information storage systems, information processing systems, and communication systems. Methods of operating such apparatus are also disclosed. |
| 公开日期 | 1991-03-20 |
| 申请日期 | 1990-09-07 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/67738]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | AT&T CORP. |
| 推荐引用方式 GB/T 7714 | BERTHOLD, KURT,LEVI, ANTHONY FREDERIC JOHN,NORDIN, RONALD A.,et al. Quantum well device and apparatus comprising the device. EP0417989A2. 1991-03-20. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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