Optical engineering is a branch of engineering that focuses on the design and application of optical systems and technologies. It involves the manipulation of light to create and improve various devices such as cameras, telescopes, lasers, and fiber optics. Optical engineers work on developing components like lenses, mirrors, filters, and detectors to control and manipulate light for various applications in fields such as telecommunications, medical imaging, remote sensing, and more. Optical engineering combines principles from physics, mathematics, and materials science to design and optimize optical systems for different purposes.