Pockels Cells

Laser optic Pockels cells are devices that play a crucial role in generating short pulses of high-intensity laser beams. These cells operate based on the Pockels effect, which changes the polarization of light when subjected to an electric field. The primary function of laser optic Pockels cells is to manipulate the polarization of laser beams within a specific wavelength range. By applying an electric field to the crystal, the polarization of the laser beam passing through the cell can be rotated, enabling the generation of short pulses of high-intensity laser beams. When selecting laser optic Pockels cells, several parameters need to be considered. Firstly, the wavelength range compatibility of the cell should match the laser source. Aperture size determines the maximum beam diameter that can be accommodated by the cell without significant power loss or beam distortion. Crystal AR (anti-reflection) is another critical factor, ensuring that the Pockels cell operates optimally within the desired wavelength range. The anti-reflection coating reduces the amount of light reflected from the surface of the crystal, enhancing the transmission efficiency of the laser beam. Other factors to consider may include maximum modulation bandwidth, damage threshold, and environmental robustness. The maximum modulation bandwidth indicates the maximum frequency at which the Pockels cell can modulate the laser beam. Damage threshold indicates the maximum power levels that the Pockels cell can handle without damage or significant performance degradation. Environmental robustness ensures that the cell can withstand vibrations, humidity, and other external factors. In summary, laser optic Pockels cells are essential components in laser systems that enable the generation of short pulses of high-intensity laser beams. These cells can be selected based on parameters such as wavelength compatibility, aperture size, crystal AR, maximum modulation bandwidth, damage threshold, and environmental robustness. They find applications in various laser systems, including laser material processing, scientific research, and telecommunications.