Strongly complex coupled DFB laser series
文献类型：专利
| 作者 | HONG, JIN; MAKINO, TOSHIHIKO |
| 发表日期 | 2001-03-13 |
| 专利号 | US6201824 |
| 著作权人 | NORTEL NETWORKS LIMITED |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Strongly complex coupled DFB laser series |
| 英文摘要 | A two-dimensional matrix of complex coupled (gain or loss coupled) semiconductor DFB lasers is disclosed. The matrix includes several parallel branches of series lasers, each series having a plurality of lasers which are grown on the same wafer. The parallel branches are combined at either one end or both ends with either an integrated on-chip optical combiner or an external coupler to obtain a single optical output port. Each laser in the series comprises a multiple quantum well active region and a complex coupled grating having corrugations along a cavity length direction formed by periodic etching grooves through either the active region or the lossy QW region. The depth of etching is defined so as to provide a substantial insensitivity of each laser to the external feedback and random facet variations and to thereby ensure no substantial interaction between lasers in the series. Bragg wavelengths of lasers from different series interleave with each other or differ incrementally along a cavity length direction. The sub tuning wavelength range covered by one laser in the matrix falls outside of the stopbands of all other lasers which are not only in the same series but also physically close to the designated output port. The laser structure is capable of simultaneous multi-wavelength generation, and/or tunable selectable single wavelength operation, and/or reliable wavelength switching. |
| 公开日期 | 2001-03-13 |
| 申请日期 | 1998-12-11 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/47225]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | NORTEL NETWORKS LIMITED |
| 推荐引用方式 GB/T 7714 | HONG, JIN,MAKINO, TOSHIHIKO. Strongly complex coupled DFB laser series. US6201824. 2001-03-13. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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