Fiber optics works by encoding data into light signals, which travel through the fiber at around 186,000 miles per second, or the speed of light. The primary data encoding technology used in fiber-optic cables is non-return-to-zero (NRZ) encoding, and increasingly, more advanced forms of NRZ like NRZ-Inverted (NRZI) and modulation techniques like Pulse-Amplitude Modulation (PAM), particularly PAM4, are employed for higher data rates. These. Fiber-optic communication is a form of optical communication for transmitting information from one place to another by sending pulses of infrared or visible light through an optical fiber. The light is a form of carrier wave that is modulated to carry information. Unlike old-fashioned copper cables, fiber optics leverage sophisticated encoding methodologies to maximize bandwidth, reach, and reliability. Once the light reaches the receiving end, it is decoded back into its original data form, such as the content you see on your screen.
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