Interband quantum well cascade laser, with a blocking quantum well for improved quantum efficiency
文献类型：专利
| 作者 | MEYER, JERRY; VURGAFTMAN, IGOR; YANG, RUAN Q. |
| 发表日期 | 1998-08-25 |
| 专利号 | US5799026 |
| 著作权人 | UNIVERSITY OF HOUSTON |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Interband quantum well cascade laser, with a blocking quantum well for improved quantum efficiency |
| 英文摘要 | A gain region for an interban quantum well laser incudes (a) an emitter region of semiconductor material having at least one conduction subband and at least one valence subband, these subbands being spaced apart by an energy band-gap; (b) a collector region of semiconductor material having at least one conduction subband and at least one valence subband, these subbands spaced apart by an energy band-gap; (c) a type-I or type-II active region; and (d) a blocking quantum well region of semiconductor material between the active region and the collector region, for keeping electrons in the active region from tunnelling or scattering into the collector region, but allowing electrons in the highest valence subband in the active region to pass into the collector region. Another aspect of the invention is a cascade laser made from a stack of these gain regions, connected in series, optical cladding regions at opposing ends of the stack, and a voltage source for applying a bias voltage to the stack, and an optical cavity perpendicular to the stacking axis fabricated by cleaving or other means. |
| 公开日期 | 1998-08-25 |
| 申请日期 | 1996-11-01 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/47791]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | UNIVERSITY OF HOUSTON |
| 推荐引用方式 GB/T 7714 | MEYER, JERRY,VURGAFTMAN, IGOR,YANG, RUAN Q.. Interband quantum well cascade laser, with a blocking quantum well for improved quantum efficiency. US5799026. 1998-08-25. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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