Abstract
In this letter, we report a Ho:YVO4 laser pumped by a 1.94-?m 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.
© 2014 Chinese Optics Letters
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