Optical alignment refers to the precise positioning of optical components, such as lenses, mirrors, and lasers, to ensure that light travels through a system as intended. Proper alignment is crucial in various applications, including telescopes, cameras, and fiber optic communication, as misalignment can lead to reduced performance or image quality. The process often involves using tools like collimators and alignment lasers to measure and adjust the angles and positions of the components. Achieving optimal alignment enhances the efficiency and effectiveness of optical systems, making it essential in fields like photography, astronomy, and medical imaging.