Electro-Optic (EO) Crystals and Acousto-Optic (AO) Crystals
KD*P or DKDP crystals are widely used in Q-switching applications at wavelength range from 0.25µm to approximately 1.1 µm,If the deuterium content is higher the absorption edge of the material is shifted further into the infrared. KD*P crystal with a deuterium content >98% can be used up to 1.3μm. KD*P can be grown with high optical uniformity and is therefore recommended for large apertures.