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Tm3+:BaY2F8被动调Q脉冲激光器

发表时间:2014-02-15  浏览量:1478  下载量:432
全部作者: 赵永光,于浩海
作者单位: 山东大学晶体材料国家重点实验室
摘 要: 研究利用Cr2+:ZnS作为可饱和吸收体,用掺杂浓度厚子分数为8%的z切Tm:BYF(Tm3+:BaY2F8)晶体作为激光增益材料,实现了1 918.6 nm被动调Q脉冲激光运转。实验采用L型腔以适当增大光斑面积,有效减少对Cr2+:ZnS的损坏。在吸收泵浦功率为1.58 W时,最大平均输出功率为207 mW,重复频率为543 Hz,得到的最大脉冲能量为382 μJ,最短脉宽为28.6 ns,对应的最大峰值功率为13.3 kW.
关 键 词: 光学;2 μm激光;被动调Q;Tm3+:BaY2F8晶体;脉冲激光
Title: Passively Q-switched Tm3+:BaY2F8 pulse laser
Author: ZHAO Yongguang, YU Haohai
Organization: State Key Laboratory of Crystal Materials, Shandong University
Abstract: In this paper, with a Cr2+:ZnS as saturable absorber, z-cut Tm:BYF (8% atom fraction, Tm3+:BaY2F8) as laser gain material, passively Q-switched pulse laser at 1 918.6 nm was demonstrated. L-cavity was adopted to enlange the light spot, and prevent damage to the Cr2+:ZnS. At the absorbed pump power of 1.58 W, the maximum average output power is 207 mW, the maximum pulse energy, the shortest pulse width and the largest peak power are 382 μJ, 28.6 ns and 13.3 kW, respectively, at the pulse repetition rate of 543 Hz.
Key words: optics; 2 μm laser; passive Q-switching; Tm3+:BaY2F8 crystal; pulse laser
发表期数: 2014年2月第3期
引用格式: 赵永光,于浩海. Tm3+:BaY2F8被动调Q脉冲激光器[J]. 中国科技论文在线精品论文,2014,7(3):203-205.
 
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