Distributed-feedback laser with improved analog modulation distortion characteristics and method for fabricating the same
文献类型：专利
| 作者 | YAMADA, HIROHITO; OKUDA, TETSURO; TORIKAI, TOSHITAKA |
| 发表日期 | 1995-02-28 |
| 专利号 | US5394429 |
| 著作权人 | NEC CORPORATION |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Distributed-feedback laser with improved analog modulation distortion characteristics and method for fabricating the same |
| 英文摘要 | A distributed-feedback laser has a diffractive grating, an optical waveguide layer, and an active region. The optical waveguide layer has equivalent refractive indexes larger towards cavity end facets and smaller towards a device center portion along a cavity. The active region containing the optical waveguide layer has widths wider towards the cavity end facets and narrower towards the device center portion along the cavity. The optical waveguide layer has a uniform electric intensity distribution along the cavity to improve the linearity of current versus optical output characteristics. In another arrangement, the optical waveguide layer formed on the diffractive grating has in its compositions longer wavelengths towards the cavity end facets and shorter wavelengths towards the cavity center portion along the cavity, whereby the optical waveguide layer has a uniform optical intensity distribution along the cavity to improve the linearity of current versus optical output characteristics. The distributed-feedback laser provided is with improved analog modulation distortion characteristics. |
| 公开日期 | 1995-02-28 |
| 申请日期 | 1993-11-01 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/39498]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | NEC CORPORATION |
| 推荐引用方式 GB/T 7714 | YAMADA, HIROHITO,OKUDA, TETSURO,TORIKAI, TOSHITAKA. Distributed-feedback laser with improved analog modulation distortion characteristics and method for fabricating the same. US5394429. 1995-02-28. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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