“…Lithium tantalite (LiTaO 3 ) is one of the most excellent and useful ferroelectric materials for piezoelectric, linear electricoptic, and nonlinear optic device applications [1,2]. With the addition of MgO doping, the stoichiometric composition allows an optical damage threshold much higher than that of LiNbO 3 , which makes periodically-poled stoichiometric LiTaO 3 (PPSLT) an extremely interesting choice for nonlinear applications, such as, optical parametric amplifiers and generators, and frequency doublers [3][4][5].…”