lithiumniobate Pockels cells

The Lithiumniobate Pockels Cells are used in the laser applications for medicine, industry and research. The Pockels cells are specified for Q- switch applications inside a laser resonator or for modulating of a laser beam outside the resonator wave voltage. Gold chromium electrodes are applied along two sides of the crystal to provide a uniform electrical field across the aperture. Crystals are oriented and cut in such a way as to provide Z-axis optical propagation. Lithiumniobate is a very suitable crystal for the use in Pockel Cells because of its special properties. The most important physical characteristics are the large electrooptical coefficient, the transparency in the spectral range from 400nm up to 4500nm, and a high melting point of 1250°C. Because of the hardness and insolubility the crystal does not need any additional protection.