Description: The term ‘electro-optic’ refers to the interaction between light and electric fields, a phenomenon that manifests in various materials and devices. This interaction allows light to be modulated, controlled, or manipulated through the application of an electric field. Electro-optic devices are fundamental in modern technology, as they enable the conversion of electrical signals into optical signals and vice versa. This is essential in applications such as telecommunications, where the transmission of data through optical fibers benefits from electro-optic modulation. Electro-optic materials, such as LiNbO3 (lithium niobate), exhibit properties that allow changes in their refractive index when an electric field is applied, resulting in the ability to control light precisely. This technology is not only crucial in the telecommunications industry but also has applications in imaging systems, sensors, and display devices. The relevance of electro-optics lies in its ability to integrate optics and electronics, opening new possibilities in the design of more efficient and compact devices.