Abstract
We demonstrated a diode-end-pumped continuous-wave and passively Q-switched Nd:GdVO 4 laser operating at 1.06 μm wavelength with a three-mirror folded resonator. The maximum continuous-wave output power of 8.18 W was obtained at the incident pump power of 22.5 W , with the corresponding optical conversion efficiency of 36.4%. For Q-switched operation, the maximum average output power was measured to be 4.64 W with the corresponding optical conversion efficiency of 25.8%, when the initial transmission of Cr 4+:YAG crystal was 90%. The shortest pulse width of 83 ns , the largest pulse energy of 20.7 μJ and the highest peak power of 246.7 W were obtained when the Cr 4+:YAG crystal with an initial transmission of 85% was used.
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