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Experiments of second harmonic generation output in pulsed TEA CO 2 laser (EI CONFERENCE)

文献类型：会议论文

作者Li D.
出版日期2010
会议名称High-Power Lasers and Applications V, October 18, 2010 - October 19, 2010
会议地点Beijing, China
关键词It is always the hot subject to realize the output of high-power laser in the range of 3-5m wavelength. This rang of wave band has greatly important applications in military because it located in the atmosphere window. Generally there are two ways to obtain this range of laser wavelength. One way is through optical parameter oscillation (OPO) from shorter laser wavelength and the other is through second harmonic generation (SHG) from longer laser wavelength. Firstly the comparison between tow nonlinear crystals ZnGeP2 and AgGaSe2 is conducted for their nonlinear coefficient and damaging threshold in theory. The theoretical results show that the crystal AgGaSe 2 is more suitable for the SHG of pulsed TEA CO2 laser. When using pulsed TEA CO2 laser with wavelength of 9.3m to pumping AgGaSe2 SHG crystal the wavelength of 4.65m is obtained. In the condition of repetition rate 100Hz the upmost output power of single pulse is up to level of 1W which corresponding efficiency of SHG is about 6%. The experimental results show that the polarization of laser beam has greatly influence on the SHG output of the crystal. Under the radiation of 3MW/cm 2 from fundamental wave and the right position for maximal SHG output in the crystal when polarization of laser beam rotates 4.5 the SHG output of energy decrease about 30%. The research of this paper will make a foundation for further development of mid-infrared laser. 2010 Copyright SPIE - The International Society for Optical Engineering.
收录类别EI
源URL[http://ir.ciomp.ac.cn/handle/181722/33945]  
专题长春光学精密机械与物理研究所_中科院长春光机所知识产出_会议论文
推荐引用方式
GB/T 7714		 Li D.. Experiments of second harmonic generation output in pulsed TEA CO 2 laser (EI CONFERENCE)[C]. 见:High-Power Lasers and Applications V, October 18, 2010 - October 19, 2010. Beijing, China.

入库方式： OAI收割

来源：长春光学精密机械与物理研究所

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