Light wavelength conversion device and laser beam source
文献类型：专利
| 作者 | YAMAMOTO HIROAKI; YAMAMOTO KAZUHISA; MIZUUCHI KIMINORI; YANAI TETSUO |
| 发表日期 | 1992-06-05 |
| 专利号 | JP1992162023A |
| 著作权人 | MATSUSHITA ELECTRIC IND CO LTD |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Light wavelength conversion device and laser beam source |
| 英文摘要 | PURPOSE:To prevent return light and provide a wavelength converting device with less noise and stable oscillation by separating the 2nd order higher harmonic wave by a directional coupler from a fundamental wave which is transmitted in a non-linear light wave-guide path, an diffusing or absorbing only the fundamental wave. CONSTITUTION:Light from semiconductor laser 7 (830nm) is condensed by a lens 8 to become a fundamental wave 9, which is transmitted in a non-linear light wave-guide path 2. This fundamental wave 9 is converted into the 2nd order higher harmonic wave 10 (415nm) by the non-linear optical effect. These fundamental wave 9 and higher harmonic wave 10 are put incident to a directional coupler 4. Another higher harmonic wave 11 and also the higher harmonic wave (11)10 are transmitted in a light wave-guide path 13 and emitted to outside the device (higher harmonic wave 15). Meantime the fundamental wave 9 is not coupled by the coupler 4 with the light wave-guide path 13, but is transmitted in a light wave-guide path 14 (fundamental wave 12). The fundamental wave 12 passing through the coupler 4 is put incident to an absorption zone 5 and absorbed. Accordingly reflection at the wave-guide end face advances reversely in the wave-guide path 2, and will never return to the semiconductor laser 7. |
| 公开日期 | 1992-06-05 |
| 申请日期 | 1990-10-26 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/50655]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | MATSUSHITA ELECTRIC IND CO LTD |
| 推荐引用方式 GB/T 7714 | YAMAMOTO HIROAKI,YAMAMOTO KAZUHISA,MIZUUCHI KIMINORI,et al. Light wavelength conversion device and laser beam source. JP1992162023A. 1992-06-05. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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