Kriwave LBO is grown with an improved high temperature flux method. LBO is phase matchable for the SHG and THG of Nd:YAG and Nd:YLF lasers, using either type I or type II interaction. Which are widely used in SHG and THG for solid state lasers, Optical Parametric Amplifiers (OPA) and Optical Parametric Oscillators (OPO) etc.