CASTECH provides high quality, Cr-doped colquiriite crystals(Cr:LiSAF) using the Czochralski technique. This family of materials includes LiSAF, LiSGaF and LiCAF. They are excellent laser materials with high energy storage and high slope efficiency. They are also ideal working materials under conditions of ultra short pulse and ultra high power. Currently, Cr:LiSAF related products such as flashlight pumping and semi-conductor pumping laser have been widely used.