Semiconductor laser
文献类型：专利
| 作者 | SUGIMURA AKIRA; KIMURA TATSUYA |
| 发表日期 | 1988-11-07 |
| 专利号 | JP1988269592A |
| 著作权人 | NIPPON TELEGR & TELEPH CORP |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Semiconductor laser |
| 英文摘要 | PURPOSE:To stably oscillate a single mode with a simple structure and to reduce an oscillation spectrum width by a method wherein a fundamental structure of a phase-shift distribution feedback laser is made as a unit, two or more pieces of this unit are connected in a longitudinal row in a direction of a resonator and a part to shift a phase of the light by a quarter wavelength is installed at each connection part. CONSTITUTION:A phase-shift distribution feedback semiconductor laser where a part to shift a phase of the light by a quarter wavelength is installed is used as a unit structure. Two of more pieces of this unit structure are connected in a longitudinal row in a direction of a resonator. In addition, the part to shift the phase of the light by a quarter wavelength is installed at this connection part. If the two or more pieces of phase shift DFB laser elements are coupled in a longitudinal row in this manner, the mode stability is kept constant and a length L of the resonator is extended. Accordingly, it is possible to obtain a semiconductor laser with a stable and long resonator and to obtain a laser oscillation line with a narrow line width. |
| 公开日期 | 1988-11-07 |
| 申请日期 | 1987-04-27 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/70775]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | NIPPON TELEGR & TELEPH CORP |
| 推荐引用方式 GB/T 7714 | SUGIMURA AKIRA,KIMURA TATSUYA. Semiconductor laser. JP1988269592A. 1988-11-07. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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