Effective CW and A-O Q-switched laser operations were demonstrated firstly using a continuous-grown GdVO 4 /Nd:GdVO 4 composite rod. A maximum CW output power of 19.2 W was obtained with the slope efficiency of 79.6% and the maximum optical-optical efficiency of 73.0% to absorbed pump power. In A-O Q-switched operation, the pulse width of 15.0 ns, 10.6 ns, and 6.9 ns, the peak power of about 11.3 kW, 29.6 kW, and 130.4 kW were achieved at the repetition rate of 100 kHz, 50 kHz, and 10 kHz, respectively.
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Li et al. (2009) studied this question.
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