Chinese Optics Letters, Volume. 12, Issue 8, 081401(2014)

Experimental study of continuous-wave and Q-switched laser performances of Ho:YVO4 crystal

Liu Han, Baoquan Yao, Xiaoming Duan, Shang Li, Tongyu Dai, Youlun Ju, and Yuezhu Wang

In this letter, we report a Ho:YVO4 laser pumped by a 1.94-μm laser in both continuous-wave (CW) and Q-switched modes. The output performance of the Ho:YVO4 laser is compared with different output coupler transmissions. By use of the output coupler transmissions of T=30%, we obtain the maximum CW output power of 3.9 W at 2052 nm, with beam quality factor of M2=1.09 for the absorbed pump power of 12.5 W. For the Q-switched mode, we achieve maximum output energy per pulse of 0.38 mJ and the minimum pulse width of 25 ns, corresponding to the peak power of 15.2 kW.

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Liu Han, Baoquan Yao, Xiaoming Duan, Shang Li, Tongyu Dai, Youlun Ju, Yuezhu Wang. Experimental study of continuous-wave and Q-switched laser performances of Ho:YVO4 crystal[J]. Chinese Optics Letters, 2014, 12(8): 081401

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Received: Apr. 3, 2014

Accepted: Apr. 23, 2014

Published Online: Jul. 31, 2014

The Author Email:

DOI:10.3788/col201412.081401

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