Optical Fiber is a kind of thin and soft material that uses the principle of total reflection of light to transmit information. It is made of high-purity glass or plastic, with an inner core and an outer cladding, which has a different refractive index, allowing light to travel long distances within the core layer with minimal loss. As a new type of transmission medium, the core function of optical fiber is to transmit optical signals efficiently and stably. When the optical signal is shot into the core layer of the fiber at a suitable Angle, it will be continuously reflected at the interface between the core layer and the cladding layer, and then transmitted along the fiber path for a long distance. This process is free from electromagnetic interference, and the signal attenuation is minimal, ensuring the high speed and reliability of data transmission.

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