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| 基于LiNbO3晶体电光调Q的Cr,Tm,Ho:YAG激光器输出特性分析 | |
| 引用本文： | 闫光,冯国英,杨火木,阴明,姚轲,赵鸿,周寿桓.基于LiNbO3晶体电光调Q的Cr,Tm,Ho:YAG激光器输出特性分析[J].激光与光电子学进展,2013,50(1):11401-155. |
| 作者姓名： | 闫光 冯国英 杨火木 阴明 姚轲 赵鸿 周寿桓 |
| 作者单位： | 闫光:四川大学电子信息学院， 川 成都 610064 冯国英:四川大学电子信息学院， 川 成都 610064 杨火木:四川大学电子信息学院， 川 成都 610064 阴明:四川大学电子信息学院， 川 成都 610064 姚轲:四川大学电子信息学院， 川 成都 610064 赵鸿:华北光电技术研究所， 北京 100015 周寿桓:四川大学电子信息学院， 川 成都 610064华北光电技术研究所， 北京 100015 |
| 基金项目： | 国家自然科学基金(60890200,10976017)和固体激光技术国家级重点实验室基金资助课题。 |
| 摘 要： | 搭建了以布儒斯特角切割LiNbO3晶体作为电光调Q元件的Cr,Tm,Ho:YAG激光器,测量了静态时腔内LiNbO3晶体的放置角度对激光器输出能量以及偏振特性的影响。研究发现,当LiNbO3晶体以布儒斯特角放置时,Cr,Tm,Ho:YAG激光器效率最高,输出激光的p分量最大,线偏振特性最好,这对电光调Q是有利的。电光调Q时,测量了不同抽运电压下的输出能量、脉冲宽度及脉冲波形,当重复频率为2Hz时、脉冲能量为25mJ,最小脉宽达265ns,脉冲峰值功率达94.3kW,脉冲波形呈光滑的近高斯分布。 |
| 关 键 词： | 激光器 Cr Tm Ho:YAG激光器 LiNbO3晶体 电光调Q 布儒斯特角 |
| 收稿时间： | 2012/9/15 |
Output Properties of Cr,Tm,Ho:YAG Laser Based on Electro-Optical Q Switching of LiNbO3 Crystal |
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| Yan Guang,Feng Guoying,Yang Huomu,Yin Ming,Yao Ke,Zhao Hong,Zhou Shouhuan.Output Properties of Cr,Tm,Ho:YAG Laser Based on Electro-Optical Q Switching of LiNbO3 Crystal[J].Laser & Optoelectronics Progress,2013,50(1):11401-155. | |
| Authors: | Yan Guang Feng Guoying Yang Huomu Yin Ming Yao Ke Zhao Hong Zhou Shouhuan |
| Affiliation: | 1,2(1College of Electronics and Information Engineering,Sichuan University, Chengdu,Sichuan 610064,China 2North China Research Institute of Electro-Optics,Beijing 100015,China) |
| Abstract: | Cr,Tm,Ho:YAG laser system based on Q switching of LiNbO3 with Brewster angle cut ends is developed. The influence of the angle by which the LiNbO3 crystal is placed on the output energy and polarization properties at free running regime is measured. The experimental results indicate that when the LiNbO3 crystal is placed in the Brewster angle, the laser will achieve the highest efficiency. Furthermore, the output beam has the largest p component and the best linear polarization properties, which are beneficial to the Q switching of Cr,Tm,Ho:YAG laser. The output energy, pulse width and pulse profile of Cr,Tm,Ho:YAG laser at various lamp voltages at Q switching regime are investigated. The maximum pulse energy of 25 mJ and the minimum pulse width of 265 ns at the repetition rate of 2 Hz are achieved, and the peak power is up to 94.3 kW. The pulse profile presents nearly smooth Gaussian distribution. |
| Keywords: | lasers Cr Tm Ho:YAG laser LiNbO3 crystal electro-optical Q switching Brewster angle |
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