Abstract
Nd: YAG is the most popular crystal for solid-state lasers because it has some good properties. Recent high power solid-state laser systems demand high quality and large scale YAG crystals. A new style automatic diameter control system is effective in crystal growth technique to produce YAG laser device for high power systems. YAG crystals that have some doping elements are applicable to measurement instruments, optical communication and the others. We are making efforts to improve the crystal growth technique for new applications.
