![]() That helps keep signal loss to a minimum and ensures that the light is able to navigate any bends in the cable successfully. The core is surrounded by glass coating, also known as cladding, whose job is to reflect the light inward. ![]() Each strand has a hollow core that acts as a tunnel or a pathway for the light signals. The light signal may be generated by either light-emitting diodes (LEDs) or small lasers.Ī fiber optic cable consists of strands of glass or optical fibers, each of which is about as thick as a human hair. Fiber optic cables are network cables that transmit communication signals in the form of light pulses.
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