Apparatus and method for stabilization of the bandgap and associated properties of semiconductor electronic and optoelectronic devices
文献类型：专利
| 作者 | COHEN, DANIEL A. |
| 发表日期 | 1997-03-25 |
| 专利号 | US5615224 |
| 著作权人 | REGENTS OF THE UNIVERSITY OF CALIFORNIA, THE |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Apparatus and method for stabilization of the bandgap and associated properties of semiconductor electronic and optoelectronic devices |
| 英文摘要 | A structure for stabilizing the wavelength and output power of uncooled diode semiconductor lasers using stress caused by differential expansion to counteract the effects of temperature fluctuation is realized by restraining the thermal expansion of the active region. The thermal expansion is restrained first by encapsulating the active region of the laser within a low expansion cap, and second, by applying stress to the active region by means of a high thermal expansion stress element mechanically coupled to the active region and restrained within the low expansion cap. As the temperature of the laser increases and it would normally attempt to expand, the stress element expands to even a greater degree with the combination of the active region and stress element both being contained within the low thermal expansion cap. The result is that physical thermal expansion of the active region is substantially eliminated or reduced and it operates under higher internal pressure. The structure for counteracting the effects of thermal expansion in active regions is applicable not only to lasers but all optoelectronic devices, to semiconductor devices, and in general, to any device having a energy band gap or any other parameter of operation dependant on thermal expansion. |
| 公开日期 | 1997-03-25 |
| 申请日期 | 1995-01-04 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/47759]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | REGENTS OF THE UNIVERSITY OF CALIFORNIA, THE |
| 推荐引用方式 GB/T 7714 | COHEN, DANIEL A.. Apparatus and method for stabilization of the bandgap and associated properties of semiconductor electronic and optoelectronic devices. US5615224. 1997-03-25. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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