LiTaO3 crystal lens is also widely used E-O crystal. LiTaO3 crystal lens is also widely used E-O crystal. Main properities of LiTaO3 lens include: Transparent:0.4-5.0µm E-O Coefficient:r33=30.4 Refractive Indices:no=2.716,ne=2.180 at 633nm 1) Diameter:76.2mm,50mm 2) Orientation:X,Z,36°Y,112X 3) Polish:both siades or single side 10/5 S/D 4) TTV<10 Um 5) Bow:<20 Um