SUMMARY
The BBO Pockels cells are laser devices developed based on the electro-optic effect. When a voltage is applied to the electro-optic crystal, the refractive index of the crystal changes. The phase difference caused by birefringence for the polarized light transmitted along the optical axis will lead to a change in the polarization state after exiting. The working principle of BBO Pockels cells is based on the transverse electro-optic effect. Therefore,the working voltage can be effectively reduced by changing the size of the BBO crystal.