en اپتیک غیر خطی Nonlinear Optics پژوهشي Research <span style="font-size:11pt"><span new="" roman="" style="font-family:" times=""><span style="font-weight:bold">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&#39;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&rsquo;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 electro-optic coefficient of the nonlinear <a name="_Hlk189410156">beta barium borate</a> (&beta;-BaB₂O₄) crystal is determined by applying quarter-wave and <a name="_Hlk189410126">half-wave voltage</a>s in an <a name="_Hlk189410109">intensity modulator</a> 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.</span></span></span> Beta barium borate, Electro-optic Coefficient, Electro-optic modulators, Half-wave voltage, Intensity modulator, Pockels cell. 75 84 http://ijop.ir/browse.php?a_code=A-10-994-1&slc_lang=en&sid=1 mehdi keikha mehdikeikha.op@gmail.com 10031947532846005446 10031947532846005446 Yes Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran