Abstract
We demonstrated passively Q-switched mode-locking in a laser-diode pumped c-cut Nd:GdVO 4 laser with a Cr 4+:YAG crystal as the intracavity saturable absorber. At a pump power of 17.3 W, the Q-switched envelope repetition rate was 37 kHz with the maximum average output power of 2.1 W, while the mode-locked pulses within the Q-switched envelope had a repetition rate of 143 MHz. Experimental comparison between c-cut and a-cut Nd:GdVO 4 lasers indicated that the c-cut Nd:GdVO 4 was more suitable for Q-switched mode-locking.
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