Semiconductor laser
文献类型：专利
| 作者 | LANG, ROBERT; MOZER, ALBRECHT |
| 发表日期 | 1991-08-13 |
| 专利号 | US5040188 |
| 著作权人 | ALCATEL N.V. |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Semiconductor laser |
| 英文摘要 | A switchable DFB (distributed feedback) laser which includes a waveguide layer having an impressed diffraction grating composed of two or more superposed subgratings having different respective grating constants. The diffraction grating is either frequency modulated (FIG. 3a) or amplitude modulated (FIG. 3b) or is a mixed form of these two types of modulation. Each subgrating can be employed to generate an emission wavelength that is a function of the grating period. By changing the temperature or changing the injection current, the effective index of refraction of the laser is changed, thus enabling the setting of an emission wavelength which is a function of the modulated diffraction grating. The switchable DFB laser according to the present invention may be employed for optical data transmission and particularly in narrowband wavelength multiplex operation. |
| 公开日期 | 1991-08-13 |
| 申请日期 | 1990-04-16 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/84379]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | ALCATEL N.V. |
| 推荐引用方式 GB/T 7714 | LANG, ROBERT,MOZER, ALBRECHT. Semiconductor laser. US5040188. 1991-08-13. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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