Comparison of electrooptically Q-switched Er:Cr:YSGGlasers by two polarizers: Glan-Taylor prism and Brewster anglestructure

Abstract

Two types of electro-optically Q-switched Er:Cr:YSGG lasers with different polarizing mechanisms have been operated. For the one Q-switching and polarizing are realized with only a LiNbO 3 crystal with both ends cut at Brewster's angle and for the other they are achieved by a cubic LiNbO 3 crystal and a Glan-Taylor prism, respectively. The two schemes are compared with regard to both the mechanical and laser Q-switched properties.