| 高稳定性低噪声的561 nm黄光激光器 |
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| 引用本文： | 马刚飞,姚文明,鞠乔俊,檀慧明,杨建明,蒋羽,高静.高稳定性低噪声的561 nm黄光激光器[J].应用光学,2017,38(3):499-505. |
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| 作者姓名： | 马刚飞 姚文明 鞠乔俊 檀慧明 杨建明 蒋羽 高静 |
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| 作者单位： | 1.中国科学院 苏州生物医学工程技术研究所江苏省医用光学重点实验室，江苏 苏州 215163 |
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| 基金项目： | 国家自然科学基金61405236国家高技术研究发展计划2015AA021106 |
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| 摘 要： | 鉴于目前561 nm激光器噪声较大，影响其实用性，提出一种高稳定性低噪声的561 nm黄光激光器。利用Nd:YAG晶体得到1 123 nm基频光，通过LBO晶体腔内倍频得到561 nm输出。理论分析了1 112 nm、1 116 nm与1 123 nm波长的阈值泵浦功率，提出1 123 nm的单波长振荡条件，确定谐振腔镀膜要求。根据理论计算，设计了合理的谐振腔膜系，通过抑制1 112 nm与1 116 nm谱线在谐振腔内的振荡实现1 123 nm谱线的单波长振荡。在泵浦功率为5 W时，实现了561 nm激光单波长输出，输出功率达到107 mW，功率不稳定性达到0.7%，噪声为1.2%。
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| 关 键 词： | 非线性光学 高稳定性 低噪声 561 nm 谐振腔膜系 |
| 收稿时间： | 2016-11-15 |
561 nm yellow laser with high stability and low noise |
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| Affiliation: | 1.Jiangsu Key Laboratory of Medical Optics, Suzhou Institute of Biomedical Engineeringand Technology, Chinese Academy of Sciences, Suzhou 215163,China2.Suzhou Guoke Medical Science & Technology Development Co., Ltd., Suzhou 215163, China3.University of Chinese Academy of Sciences, Beijing 100049, China4.School of Electronic and Optical Engineering, Nanjing University of Science and Technology,Nanjing 210094, China5.Suzhou Tusen Laser Co., Ltd., Suzhou 215011, China |
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| Abstract: | In view of current high noise of domestic 561 nm laser, affecting its practicality, 561 nm yellow laser with high stability and low noise is proposed. Nd:YAG crystal is used to obtain 1 123 nm fundamental frequency light, and output of LBO crystal is 561 nm. Threshold pump power of 1 112 nm, 1 116 nm and 1 123 nm wavelength is analyzed theoretically, and a single wavelength oscillation condition of 1 123 nm is proposed to determine requirements of resonant cavity coating. According to theoretical calculation, a reasonable resonant cavity system is designed, and single-wavelength oscillation of 1 123 nm line is realized by suppressing oscillation of 1 112 nm and 1 116 nm lines in the resonator. At a pump power of 5 W, 561 nm laser single wavelength output is achieved with an output power of 107 mW, power instability of 0.7% and noise of 1.2%. |
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