Physics, what is optical fiber communication? What is the working principle? What are its advantages and disadvantages?

△ Optical fiber communication: Optical fiber communication is a communication mode that allows laser with information to spread in optical fiber.

△ Working principle of optical fiber communication: Light is injected from one end of the optical fiber, reflected on the inner wall for many times, and emitted from the other end, thus transmitting the information it carries to far places. (as shown)

△ Advantages and disadvantages of optical fiber communication:

(1) Advantages: large communication capacity (high frequency of light can transmit a large amount of information in a certain time), high communication quality (low transmission loss of light in optical fiber, long-distance transmission) and good confidentiality (transmission in optical fiber);

(2) Disadvantages: the optical cable is fragile and the installation cost of the optical cable is high.

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I wish you progress in your studies and go up a storey still higher! (*^__^*)