Potassium Dihydrogen Phosphate (KDP) and Potassium Dideuterium Phosphate (KD*P
) are among the most widely-used commercial NLO materials, characterized by good UV
transmission, high damage threshold, and high birefringence, though their NLO coefficients
are relatively low. They are usually used for doubling, tripling and quadrupling of a Nd:YAG
laser under the room temperature. In addition, they are also excellent electro-optic crys-
tals with high electro-optic coefficients, widely used as electro-optical modulators, such as
Q-switches, Pockels Cells, etc.
• Second, third, and fourth harmonic generation of Nd:lasers.
• Frequency doubling of dyer laser
• High power laser frequency conversion materials
• Shutter for high speed photography
• Electro-optical modulator and Q switches