| 243 nm稳频窄线宽半导体激光器 |
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| 引用本文： | 侯磊,韩海年,张龙,张金伟,李德华,魏志义.243 nm稳频窄线宽半导体激光器[J].物理学报,2015,64(13):134205-134205. |
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| 作者姓名： | 侯磊 韩海年 张龙 张金伟 李德华 魏志义 |
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| 作者单位： | 中国科学院物理研究所, 光物理重点实验室, 北京 100190 |
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| 基金项目： | 国家重点基础研究发展计划(批准号:2012CB821304)、国家自然科学基金(批准号:11078022,61378040)资助的课题. |
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| 摘 要： | 243 nm是氢原子1S-2S能级跃迁光谱波长. 本文利用Pound-Drever-Hall稳频技术将972 nm光栅反馈外腔半导体激光稳定在一个高精细度低膨胀系数的超稳法布里-珀罗腔上, 通过锥形放大器放大和腔内两次共振增强倍频得到243 nm激光, 最终实现用于探测氢原子1S-2S双光子跃迁的243 nm窄线宽激光.
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| 关 键 词： | 半导体激光器 紫外光源 精密光谱学 |
| 收稿时间： | 2014-12-08 |
A narrow linewidth diode laser at 243 nm |
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| Hou Lei,Han Hai-Nian,Zhang Long,Zhang Jin-Wei,Li De-Hua,Wei Zhi-Yi.A narrow linewidth diode laser at 243 nm[J].Acta Physica Sinica,2015,64(13):134205-134205. |
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| Authors: | Hou Lei Han Hai-Nian Zhang Long Zhang Jin-Wei Li De-Hua Wei Zhi-Yi |
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| Institution: | Institute of Physics Chinese Academy of Sciences, Key Laboratory of Optical Physics, Beijing 100190, China |
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| Abstract: | The two-photon spectroscopy of 1S-2S transition in atomic hydrogen needs a narrow linewidth laser at the wavelength of 243 nm. In order to reduce the linewidth to several tens hertz level, a free operation CW ECDL 972 nm laser has been locked to a high fineness ultralow expansion reference cavity by using the Pound-Drever-Hall technique. And the part of 972 nm laser output is set into the tapered amplifier and the two enhanced doubling frequency stages to obtain the output of purple light at 243 nm. It is estimated that such a narrow linewidth laser system at 243 nm can be used well in the detection of the 1S-2S transition of hydrogen. |
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| Keywords: | laser diodes ultraviolet sources metrological applications |
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