Chinese Optics Letters, Volume. 9, Issue 8, 081401(2011)

6.5-ns actively Q-switched Nd:YVO4 laser operating at 1.34 \mu m

Yongguang Zhao1, Zhengping Wang1, Haohai Yu1, Lei Guo1, Lijuan Chen1, Shidong Zhuang1,2, Xun Sun1, Dawei Hu3, and Xinguang Xu1
Author Affiliations
  • 1State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Ji'nan 250100, China
  • 2School of Science, Shandong Jianzhu University, Ji'nan 250101, China
  • 3Institute of Science Technology for National Defence, Shandong University, Ji'nan 250100, China
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    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.

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    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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    Paper Information

    Category: Lasers and Laser Optics

    Received: Feb. 17, 2011

    Accepted: Mar. 15, 2011

    Published Online: Jun. 1, 2011

    The Author Email:

    DOI:10.3788/COL201109.081401

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