Chinese Physics B, Volume. 29, Issue 8, (2020)
High efficiency sub-nanosecond electro–optical Q-switched laser operating at kilohertz repetition frequency
Based on a theoretical model of Q-switched laser with the influences of the driving signal sent to the Pockels cell and the doping concentration of the gain medium taken into account, a method of achieving high energy sub-nanosecond Q-switched lasers is proposed and verified in experiment. When a Nd:YVO4 crystal with a doping concentration of 0.7 at.% is used as a gain medium and a driving signal with the optimal high-level voltage is applied to the Pockels cell, a stable single-transverse-mode electro–optical Q-switched laser with a pulse width of 0.77 ns and a pulse energy of 1.04 mJ operating at the pulse repetition frequency of 1 kHz is achieved. The precise tuning of the pulse width is also demonstrated.
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Xin Zhao, Zheng Song, Yuan-Ji Li, Jin-Xia Feng, Kuan-Shou Zhang. High efficiency sub-nanosecond electro–optical Q-switched laser operating at kilohertz repetition frequency[J]. Chinese Physics B, 2020, 29(8):
Received: Feb. 29, 2020
Accepted: --
Published Online: Apr. 29, 2021
The Author Email: Li Yuan-Ji (liyuanji@sxu.edu.cn)