Potassium Titanyle Arsenate (KTiOAsO4), los yog KTA siv lead ua, yog ib qho zoo heev nonlinear optical siv lead ua rau Optical Parametric Oscillation (OPO) daim ntawv thov.Nws muaj qhov zoo dua uas tsis yog-linear optical thiab electro-optical coefficients, txo qhov nqus ntawm 2.0-5.0 µm cheeb tsam, dav dav thiab qhov kub thiab txias bandwidth, tsis tshua muaj dielectric.