LiNbO Crystal is widely used as frequency doublers for wavelength > 1 m and optical parametric oscillators (OPOs) pumped at 1064nm as well as quasi-phase-matched (QPM) devices. Due to its large Electro-Optic ((E-O) and Acousto-Optic (A-O) coefficient, LiNbO crystal is the most commonly used material for Pockel Cells, Q-switches and phase modulators, waveguide substrate, and surface acoustic wave (SAW) wafers, etc.