Conflicting experimental results observed from a Nd:YVO/sub 4//Cr/sup 4+/:YAG passively Q-switched microchip laser

We observed a stable passively Q-switched laser operation from a Nd:YVO/sub 4//Cr/sup 4+/:YAG microchip laser with its Q-switch repetition rate flattened with the increase of the pump power. The result conflicts with that published previously in the literature.