Indoor optical fiber and cable communication is the main transmission method of modern communication transmission systems. The development history of optical fiber and cable is only ten or twenty years, and it has undergone three upgrades: short-wavelength multi-mode optical fiber and cable, long-wavelength multi-mode optical fiber and cable and long-wavelength single-mode optical fiber fiber optic cable. The use of optical fiber and cable communication is a major change in the communication transmission system. At present, China's optical fiber and cable communication has entered a practical stage. In addition, many countries have announced that they will no longer build cable communication lines, but are committed to the development of optical fiber and cable communication.
Indoor fiber optic cable communication is to use fiber optic cable to transmit light waves that carry information to achieve the purpose of communication transmission. To make the light wave become the carrier of information, it must be modulated, and then the information can be detected from the light wave at the receiving end. As a technology, fiber optic cable communication transmission has a development history of only 30 to 40 years, but it has completely changed the face of communication transmission in the world, and its future development is even more immeasurable.
Optical fiber cable communication transmission principle: First of all, at the sending end, the transmitted information (such as voice) should be converted into an electrical signal, and then modulated to the laser beam emitted by the laser, so that the intensity of the light changes with the amplitude (frequency) of the electrical signal. , and send it out through the fiber optic cable; at the receiving end, the detector converts the optical signal into an electrical signal after receiving it, and restores the original information after demodulation.
The advantages of fiber optic cable transmission: large communication capacity and long transmission distance; extremely low loss of fiber optic cable; low signal interference and good confidentiality; anti-electromagnetic interference, good transmission quality; small size and light weight of fiber optic cable, easy to lay and transport; The material source is rich and environmentally friendly, which is conducive to saving non-ferrous metal copper; no radiation, it is difficult to eavesdrop; the optical cable has strong adaptability and long service life. Disadvantages of fiber optic cable transmission: brittle texture, poor mechanical strength; cutting and splicing fiber optic cables requires certain tools, equipment and techniques; splitting and coupling are not flexible; the bending radius of fiber optic cables cannot be too small (>500px); difficult question.
Indoor fiber optic cable application scenarios
Through the introduction of ZR Fiber, I believe that everyone has an understanding of the role of indoor fiber optic cables in communications. If you want to know more about ZR fiber jumper products, welcome customers to come and consult.
