Er: YAG luhlobo olugqwesileyo lwe-2.94 um laser crystal, esetyenziswa ngokubanzi kwinkqubo yonyango ye-laser kunye neminye imimandla.I-Er: I-LAG ye-crystal laser yeyona nto ibalulekileyo ye-laser ye-3nm, kunye ne-slope enokusebenza okuphezulu, inokusebenza kwi-laser yeqondo lokushisa, i-laser wavelength ingaphakathi kwendawo yokhuseleko lwamehlo omntu, njl. njl. isetyenziswe ngokubanzi kunyango lwezonyango, ubuhle bolusu, unyango lwamazinyo.