Experimental study of electro-optical Q-switched pulsed Nd:YAG laser
Maleki A†, , Kavosh Tehrani M, Saghafifar H, Moghtader Dindarlu M H
       

Laser output versus optical pump energy input characterized by a threshold input energy Eth and a slope efficiency σs (at 50 Hz) in (a) free-running and (b) Q-switched operations.