Passively Q-switched Tm:YAP laser and in-band pumped Cr:ZnSe polycrystalline crystal laser

A passively Q-switched Tm:YAP laser was demonstrated with the maximum average output power of 1.32W. Moreover, we demonstrate a polycrystalline Cr:ZnSe crystal laser in-band pumped at 2000nm. Compared to the results for pumping at 1918nm, the slope efficiency was enhanced around 40%.