标题：2 mu m Passively Q-switched all-solid-state laser based on WSe2 saturable absorber
作者：Cao, Lihua; Tang, Wenjing; Zhao, Shengzhi; Li, Ying; Zhang, Xiaodong; Qi, Na; Li, Dechun
作者机构：[Cao, Lihua] Shandong Univ, Engn Training Ctr, Jinan 250100, Shandong, Peoples R China.; [Tang, Wenjing] Jinan Univ, Sch Phys & Technol, Jinan 25010 更多
通讯作者地址：[Li, DC]Shandong Univ, Sch Informat Sci & Engn, Jinan 250100, Peoples R China.
来源：OPTICS AND LASER TECHNOLOGY
关键词：All-solid-state laser; Q-switched; WSe2
摘要：Based on a high-quality WSe2 film prepared by the ultrasound-assisted liquid phase exfoliation (UALPE) method, a passively Q-switched all-solid-state Tm:YLF laser at 2 mu m with high peak power was presented. The laser characteristics versus the pump power were investigated experimentally. Under the pump power of 8.84 W, the maximum single pulse energy of 12.8 mu J and peak power of 30 W were obtained, corresponding to the perfect pulse duration and maximum repetition rate of 427 ns and 82 kHz, respectively. To the best of our knowledge, it is the first presentation of WSe2-SA employed in a solid-state Q-switched crystalline laser at 2 mu m.