Fiber optics are essential for long-distance and high-performance data networking, offering superior speed and capacity compared to traditional copper lines. They are widely used in telecommunications for Internet, television, and telephone services due to their high data transfer rates and flexibility. In military and aerospace applications, fiber optics provide critical data security and reliability. Additionally, the automotive industry utilizes fiber optics for advanced lighting and safety features, benefiting from their space-saving and illumination-enhancing properties.