Fiber optic networks use thin strands of glass or plastic to transmit data as light signals, allowing for high-speed internet and communication. These networks are known for their ability to cover long distances without significant loss of signal quality, making them ideal for both residential and commercial use. The technology behind fiber optics involves the principle of total internal reflection, which enables the light to travel through the fibers efficiently. As a result, fiber optic networks provide faster speeds and greater bandwidth compared to traditional copper cables, revolutionizing how we connect and communicate in the digital age.