标题：Stable sub nanosecond pulse generation from dual-loss-modulated QML YVO_4/NdYVO_4 laser with EO and middle SESAM
作者：Gang Zhang;Shengzhi Zhao;Guiqiu Li;Kejian Yang;Dechun Li;Kang Cheng;Yonggang Wang
作者机构：[Zhang, G] Colllege of Science, China University of Petroleum (East China), Qingdao 266555, China;[ Zhao, S] School of Information Science and Enginee 更多
通讯作者地址：[Zhang, G]China Univ Petr E China, Coll Sci, Qingdao 266555, Peoples R China.
来源：Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter
关键词：Dual-loss-modulation;Sub-nanosecond pulse;Q-switched envelope;Pulse stability
摘要：By using electro-optic (EO) modulator and middle semiconductor saturable absorber mirror (SESAM), a diode-pumped dual-loss-modulated Q-switched mode-locked (QML) YVO_4/NdYVO_4 laser at 1.06 μm is presented. A stable pulse train with shorter pulse duration and higher peak power is generated. The experimental results show both the pulse width of the Q-switched envelope and the number of the mode-locked pulse underneath the Q-switched envelope decrease with increasing pump power. When the pump power exceeds 8.76 W, there is only one mode-locked pulse lying underneath a Q-switched envelope. This kind of stable sub-nanosecond pulse has the repetition rate of 1 kHz. The evaluated mode-locked pulse width is 950 ps and the corresponding peak power is 398 kW.