KDP thiab KD * P yog cov khoom siv kho qhov muag uas tsis yog-linear, ua rau muaj kev puas tsuaj loj heev, zoo nonlinear optical coefficients thiab electro-optic coefficients.Nws tuaj yeem siv rau ob npaug, tripling thiab quadrupling ntawm Nd: YAG laser ntawm chav tsev kub, thiab electro-optical modulators.