KTP Nonlinear Crystals
KTP (potassium titanyl phosphate) nonlinear crystals feature high efficiency and suit low average power or CW lasers, used in extracavity single-pass configurations and optimized for intracavity SHG in low peak power CW lasers. They are insensitive to temperature change and operate with sharply focused or highly divergent beams. Crystals are typically cut for 1064 nm to 532 nm frequency doubling with low-loss dual band AR coatings, with other cuts available for OPO.