Chinese Optics Letters, 2011, 9 (8): 081401, Published Online: Jun. 1, 2011
6.5-ns actively Q-switched Nd:YVO4 laser operating at 1.34 \mu m 
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Nd:YVO4 主动调Q 理论计算 脉冲宽度 140.3480 Lasers, diode-pumped 140.3530 Lasers, neodymium 140.3540 Lasers, Q-switched 140.3580 Lasers, solid-state
Abstract
With a plano-concave cavity, diode-pumped continuous-wave (CW) and actively Q-switched Nd:YVO4 laser operating at 1.34 \mu m is demonstrated. Maximum CW output power of 4.76 W and Q-switched average output power of 2.64 W are obtained with output coupler (transmission T=3.9%). For the Q-switching operation, the theoretically calculated pulse energy and pulse width, with a pulse repetition frequency (PRF) range of 5–40 kHz, coincide with the experimental results. With a T=11.9% output coupler, the maximum peak power of 24.3 kW and minimum pulse width of 6.5 ns are obtained when the PRF is 10 kHz. To the best of our knowledge, this is the shortest actively Q-switched pulse duration ever obtained in a 1.3-\mu m Nd-doped vanadate laser.
Yongguang Zhao, Zhengping Wang, Haohai Yu, Lei Guo, Lijuan Chen, Shidong Zhuang, Xun Sun, Dawei Hu, Xinguang Xu. 6.5-ns actively Q-switched Nd:YVO4 laser operating at 1.34 \mu m[J]. Chinese Optics Letters, 2011, 9(8): 081401.
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