What is fiber optic cable? Who are the domestic and international manufacturers of Vibrating Cable?

First, what is the through the fiber cable? Optical Fiber Cable (Optical Fiber Cable) is a kind of telecommunication network cable used for transmitting optical signals, which can realize high-speed, long-distance, large-capacity information transmission. It is composed of one or more optical fibers and a protective material wrapped around the outer layer. Optical fibers are made of high-purity quartz glass or plastic with a high refractive index, capable of transmitting light signals through reflection. Because of its unique advantages, ventilation cable is widely used in modern communication, data transmission, broadcasting and television. The basic structure of the through cable consists of two parts: the optical fiber and the protective material. Optical fiber is the core of the communication cable, its main role is to transmit the optical signal from one point to another. The optical fiber consists of a core and a cladding. The core is the transmission medium of the optical fiber and is made of a material with a high refractive index, while the cladding is the outer shell that protects the core and is made of a material with a low refractive index. The protective material is the external material used to protect the optical fiber and connector, usually including the sleeve, shielding, reinforcement and so on. The sleeve is a tubular material used to protect the optical fiber from the external environment, such as moisture, temperature changes, etc. The shielding layer is used to protect the optical fiber from electromagnetic interference, and the reinforcement is a material used to enhance the mechanical and tensile strength of the cable. The working principle of the ventilation cable is to use the total reflection principle of the optical fiber. When the light from one medium into another medium, if the angle of incidence is greater than the critical angle, then the light will be fully reflected, along the original medium propagation. The fiber core portion of a communication cable is designed with a special structure that allows total reflection to be maintained throughout the light transmission process. In this way, optical signals can be transmitted from one end to the other, realizing high speed transmission over long distances. Ventilated fiber optic cable has many advantages, not the least of which is its very large bandwidth. While traditional copper cables can only support a limited bandwidth, passthrough cables can achieve very high bandwidths, even up to 1Tbps or more. This means that more data can be transmitted over a passthrough cable, supporting higher transmission speeds. In addition, the transmission distance of the through cable is very long and can reach thousands of kilometers or even tens of thousands of kilometers, while the transmission distance of the copper cable is more limited. In addition, the anti-interference performance of through the fiber cable is also very good, because the optical signal will not be affected by electromagnetic interference. Vertical fiber optic cables have many uses in practical applications. In telephone networks, fiber optic cables are widely used for long-distance transmission, such as intercontinental telephone calls. In data centers, fiber optic cables are used to connect servers and switches to support high-speed data transmission. In broadcasting, fiber optic cables are used to transmit high-definition television signals and digital audio signals. In addition, fiber optic cables are used in medical equipment, military communications and scientific research.

Second, what are the domestic and foreign manufacturers of fiber optic cables?

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