optical fiber communications link
Quick Summary
Optical fiber communications use light to transmit data through thin, transparent fibers, typically made of glass or plastic. This technology has largely replaced copper wire for long-distance telephone lines and computer network connections.12
An optical fiber communications link includes a transmitter that converts information into a light beam, the fiber itself, and a receiver that converts the light back into an electrical signal. Light travels through the fiber via total internal reflection, allowing it to propagate long distances with minimal signal loss.342
Optical fibers offer high bandwidth, low attenuation, and immunity to interference, making them ideal for high-speed digital telecommunications. They are used in everything from long-haul telephone networks to local area networks.341
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