CASTECH is a pioneer and global leader in crystals, precision optics and components for optical communication, lithography, LiDAR and AR/VR applications. Based on more than 30 years of worldwide known expertise and unique technologies of crystal growing, precision polishing, high LIDT coating and assambly, CASTECH has built a wide selection of high performance optical products category and solutions for most commanding applications to assist with our customers from prototype to mass production stage to build and connect the intellegent optical world.

CASTECH has been a pioneer and global leading supplier of crystals, precision optics and laser components since 1988. With 30 years'' experience and unique technologies, CASTECH now is a proven expert on ONE-STOP ultra-short pulse laser solutions. By working with our cross-functional team, discover your innovative ultrafast laser solution kit from our extensive product portfolio including laser crystals like Yb:CALGO, Yb:CaF2, Yb:KGW, precision optics like chirped mirrors, gratings and laser components like 200MHz Fiber-Coupled AOM, BBO Pockels Cell.