Potassium Titanyle Arsenate (KTiOAsO4), kapa kristale ea KTA, ke kristale e ntle e sa tloaelehang ea optical bakeng sa ts'ebeliso ea Optical Parametric Oscillation (OPO).E na le li-coefficients tse ntle tsa optical le electro-optical tse betere, tse fokotsang haholo ho monya sebakeng sa 2.0-5.0 µm, bandwidth e pharalletseng le mocheso oa mocheso, likhahla tse tlase tsa dielectric.