Explore high-dimensional quantum communication using structured light in this advanced lecture by Antonio Zelaquett from UFF-Niteroi, Brazil. Delve into the third class of a series focusing on the intersection of quantum physics and optical communication. Learn about the principles of structured light and its applications in quantum information processing. Discover how high-dimensional quantum states can be encoded and manipulated using the spatial properties of light. Examine cutting-edge techniques for implementing quantum communication protocols with increased information capacity. Gain insights into the challenges and opportunities presented by this emerging field of quantum optics. Suitable for graduate students and researchers in physics, optics, and quantum information science.