Determination of the Electro-Optic Coefficient of β-BaB₂O₄ Crystal

One of the most widely utilized physical properties in laser and photonic technologies is the electro-optic behavior of materials, characterized by their electro-optic coefficients. the electro-optic coefficient quantifies a material's ability to alter its optical properties in response to an applied electric field. when light passes through an electro-optic crystal subjected to an electric field, light modulation can be controlled with high speed and precision in accordance with the crystal’s electro-optic coefficient. this property facilitates applications such as light control, frequency conversion, and the generation and amplification of short laser pulses. in this study, the electrooptic coefficient of the nonlinear beta barium borate (β-bab₂o₄) crystal is determined by applying quarter-wave and half-wave voltages in an intensity modulator setup. it will also be demonstrated that this configuration serves as an effective method for the precise measurement of half-wave and quarter-wave voltages in pockels cells.