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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.
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.