中国激光, 2016, 43 (11): 1101004, 网络出版: 2016-11-10
掠入射Nd:YVO4板条结构皮秒激光放大器的实验研究
Experimental Study of Picosecond Laser Amplifier Based on Grazing Incidence Nd:YVO4 Slab Geometry
激光器 板条放大器 皮秒激光 微晶片 光束质量 侧面抽运 lasers bounce amplifier picosecond laser microchip beam quality side pump
摘要
Abstract
The experimental study of the double-pass grazing incidence Nd:YVO4 slab amplifier is carried out based on a saturable absorber and passively Q-switched microchip seed laser. The microchip laser with pulse duration of 90 ps, repetition rate of 100 kHz and beam quality factor M2=1.16 acts as seed laser with varying output power from 100 μW to 10 mW. The new liquid pure metal grease and the traditional thin indium foil are used to conduct as the thermal contact material of the bounce amplifier, respectively. Experimental results show that the liquid pure metal grease conducted as the thermal contact material can significantly reduce the temperature of the slab pump face. An output power of 13 W is obtained with the liquid pure metal grease conducted as the thermal contact material for 10 mW seed power with pump power of 55 W at an optical-optical efficiency of 23%, achieving pulse peak power of 1.2 MW and pulse energy of 130 μJ. The beam quality factor is M2x=1.30,M2y=1.28.
沈利沣, 姜洪波, 赵志刚, 刘斌, 王春华, 项震, 刘崇. 掠入射Nd:YVO4板条结构皮秒激光放大器的实验研究[J]. 中国激光, 2016, 43(11): 1101004. Shen Lifeng, Jiang Hongbo, Zhao Zhigang, Liu Bin, Wang Chunhua, Xiang Zhen, Liu Chong. Experimental Study of Picosecond Laser Amplifier Based on Grazing Incidence Nd:YVO4 Slab Geometry[J]. Chinese Journal of Lasers, 2016, 43(11): 1101004.