Miniaturized mid-infrared MgO: PPLN optical parametric oscillator with high beam quality

doi:10.3788/IRLA20190512

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	Miniaturized mid-infrared MgO: PPLN optical parametric oscillator with high beam quality
	X. Bai,Y. He,D. Yu,K. Zhang and F. Chen
	2020
发表期刊	Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
ISSN	10072276
卷号	49 期号:7
摘要	In order to meet the engineering application of mid-infrared laser, a miniaturized mid-infrared MgO: PPLN optical parametric oscillator (MgO: PPLN-OPO) with high beam quality was presented. The pump source was an acousto-optical Q-switched Nd: YVO4 laser. By pumping the MgO: PPLN crystal, the mid-infrared laser with high efficiency and high peak power was obtained. And the mid-infrared beam quality was improved by adding an aperture in the cavity. The whole laser was cooled by thermoelectric cooling and air cooling. Therefore, the size of the laser was miniaturized. Experimental results indicate that the acousto-optical Q-switched Nd: YVO4 laser can realize the pulse laser with the highest power of 9.3 W at 1.064 m. The corresponding optical to optical conversion efficiency is 27.2% and the peak power is ~27.5 kW. With the Nd: YVO4 laser pump, the MgO: PPLN-OPO can output the pulse laser at 3.765 m. When adding the aperture in the cavity, the maximum output power of the MgO: PPLN-OPO decreases from 1.20 W to 1.08 W. However, the beam quality improves obviously. The Mx2 and My2factors change from 1.89 and 1.98 to 1.20 and 1.29, respectively. The pulse width and the peak power of mid-infrared laser are 8.4 ns and ~4.3 kW, respectively. 2020, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
DOI	10.3788/IRLA20190512
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收录类别	EI
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/64688
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	X. Bai,Y. He,D. Yu,K. Zhang and F. Chen. Miniaturized mid-infrared MgO: PPLN optical parametric oscillator with high beam quality[J]. Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,2020,49(7).
APA	X. Bai,Y. He,D. Yu,K. Zhang and F. Chen.(2020).Miniaturized mid-infrared MgO: PPLN optical parametric oscillator with high beam quality.Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,49(7).
MLA	X. Bai,Y. He,D. Yu,K. Zhang and F. Chen."Miniaturized mid-infrared MgO: PPLN optical parametric oscillator with high beam quality".Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering 49.7(2020).

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