Tunable wavelength light source incorporated optical filter using interferometer into external cavity
文献类型：专利
| 作者 | GOTO, HIROSHI |
| 发表日期 | 1995-08-22 |
| 专利号 | US5444724 |
| 著作权人 | ANRITSU CORPORATION |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Tunable wavelength light source incorporated optical filter using interferometer into external cavity |
| 英文摘要 | In an external-cavity tunable wavelength light source using a semiconductor laser (LD), when an interferometer serving as an optical filter is constituted by part of an external cavity, an external-cavity longitudinal mode can be selected with good reproducibility, and a side mode suppression ratio can be increased. A light beam emitted from an AR-coated facet of an LD is converted into a collimated beam by a lens, and the collimated beam is incident on a Mach-Zehnder (MZ) interferometer serving as an optical filter. An interference light beam emerges from the MZ interferometer toward a diffraction grating. Only a light component having a specific wavelength and selected by spectrally dispersing the interference light beam reversely travels in the same optical path as that of the interference light beam and is returned to the LD. In this manner, a cavity is formed between the LD and the diffraction grating, and a laser beam having a wavelength determined by three relationships between an external-cavity longitudinal mode, a cavity loss caused by the diffraction grating, and the output characteristics of an interference light beam from the MZ interferometer is oscillated. |
| 公开日期 | 1995-08-22 |
| 申请日期 | 1994-08-25 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/42146]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | ANRITSU CORPORATION |
| 推荐引用方式 GB/T 7714 | GOTO, HIROSHI. Tunable wavelength light source incorporated optical filter using interferometer into external cavity. US5444724. 1995-08-22. |
入库方式： OAI收割
来源：西安光学精密机械研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。