Traveling wave oscillation type semiconductor laser
文献类型：专利
| 作者 | YAMADA HIROHITO |
| 发表日期 | 1991-06-20 |
| 专利号 | JP1991145179A |
| 著作权人 | NEC CORP |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Traveling wave oscillation type semiconductor laser |
| 英文摘要 | PURPOSE:To prevent a standing wave from occurring in a semiconductor medium so as to restrain a diving effect by a method wherein a ring-like optical resonator which optically couples both the ends of a semiconductor optical amplifier together with an optical system is provided, an optical isolator is provided at a halfway point of the ring-like resonator. CONSTITUTION:A ring-type optical resonator is formed of an optical system composed of a collimator lens 36, a half mirror 34, and a micro-mirror 34, and a small optical isolator 32 is inserted in a halfway point of the ring-like optical system where an optical feedback is performed. In addition to this constitution, an optical filter 33 is provided at a point on an optical feedback route to provide the ring type resonator with wavelength selectivity so as to stabilize a laser in oscillation. An optical power is outputted through a half mirror 34 located on the outlet side of an optical amplifier. By this setup, light is made to circulate in an resonator only in one direction, repeatedly amplified through a semiconductor amplifier 31 circulating in one direction, and starts oscillating. In such a traveling wave type semiconductor laser, only light traveling in one direction is present in a resonator, so that a standing wave is prevented from occurring in the semiconductor medium of an optical amplifier. |
| 公开日期 | 1991-06-20 |
| 申请日期 | 1989-10-30 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/50584]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | NEC CORP |
| 推荐引用方式 GB/T 7714 | YAMADA HIROHITO. Traveling wave oscillation type semiconductor laser. JP1991145179A. 1991-06-20. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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