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Communication optical cable

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Communication optical cable

通信光缆
  • Category: Communication optical cable

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  • Release Date: 2017/07/14
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Detailed introduction

通信光缆

The new optical fiber in the communication cable manufacturer breaks the monopoly of hundreds of capillaries to synthesize a fiber: by changing the internal structure, the optical fiber is no longer limited by the optical physical characteristics, and the performance is improved by more than 10 times while achieving wider application. At the Ninth China Optoelectronic Expo held in Beijing, the newly launched "Polarization Maintaining Photonic Crystal Fiber" was officially unveiled. According to Zhao Zisen, "Father of China Optical Fiber" and academician of the Chinese Academy of Engineering, the emergence of this product not only broke the international monopoly, has a broad market prospect, but also promoted the development of the domestic optical communications industry and military technology, which played an important role. At the site of today ’s new cable launch conference, the reporter saw this new product known as the “Pearl of the Special Optical Fiber Industry”. This is a seemingly ordinary, 80-micron-thick silver filament. Under the microscope, its internal structure is completely different from ordinary optical fibers.

At the beginning of the 19th century, after humans discovered that light can propagate in water, glass and other media using the principle of total internal reflection, some people began to realize that if we can pull out ultra-fine glass filaments to achieve long-distance transmission of light guides, there will be unlimited applications. Optical fiber is a medium that transmits information from one end to the other. It is a piece of glass or plastic fiber used as a transmission medium for passing information.

The terms `` optical fiber '' and `` optical cable '' are often confused. Most optical fibers must be covered with several layers of protective structure before use. The coated cable is called `` optical cable ''. The protective structure of the outer layer of the optical fiber can be Prevent the surrounding environment from damaging the optical fiber, such as water, fire, electric shock, etc. The optical cable is divided into: optical fiber, buffer layer and covering. Optical fiber is similar to coaxial cable, except there is no mesh shielding layer. At the center is a glass core for light propagation. In a multimode fiber, the diameter of the core is 15 μm to 50 μm, which is roughly equivalent to the thickness of a human hair. The diameter of a single-mode fiber core is 8 μm to 10 μm. A glass envelope with a lower refractive index than the core is surrounded on the outside of the core to keep the fiber inside the core. Outside is a thin plastic jacket to protect the envelope. Optical fibers are usually bundled and protected by a housing.

The core of a communication optical cable manufacturer is usually a double-layer concentric cylinder made of quartz glass with a small cross-sectional area. It is brittle in texture and easy to break, so a protective layer is required. Characteristics of optical fiber: Because optical fiber is a transmission medium, it can transmit telephone calls or computer data like ordinary copper cables. The difference is that optical fiber transmits optical signals instead of electrical signals. Therefore, optical fibers have many unique features. The advantages of such as: wide bandwidth, low loss, shielding electromagnetic radiation, light weight, security, privacy, and operation of optical fiber systems: you may know that any communication transmission process includes: encoding → transmission → decoding, of course, transmission of optical fiber systems The process is also roughly the same. After the electronic signal is input, the signal is digitally encoded by the transmitter to become an optical signal, and the light is transmitted to the receiver at the other end through the fiber. The receiver then decodes the signal to restore the original electronic signal. Signal output. Application of optical fiber cable: The application of optical fiber cable can be divided into three types: professional use, general outside, inside the house. Professional uses include submarine optical cables, empty overhead optical cables on high voltage electrical towers, and nuclear power plant Radiation fiber optic cable, anti-corrosion fiber optic cable in chemical industry, etc., and the classification difference between general house and general house depends on the characteristics of each type of fiber optic cable and manufacturing design, and its applicable scope varies.


Related tags: Communication Optical Cable Prices , Communication Optical Cable Recycling , Communication Optical Cable Manufacturers

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