1. Wide transmission bandwidth and large communication capacity;
Copper cable network transmission has limitations and cannot meet the needs of optical fiber transmission. With the rapid development of technology, the optical module developed by domestic optical device manufacturers has a transmission rate of 800Gdbs. The national fiber-to-the-home FTTH Gigabit network is being fully rolled out, and the local area network is also advancing from Gigabit 1.25Gdbs to 10GbS. The all-fiber communication network is becoming a development trend. Optical fiber is not limited by transmission rate. In the future, replacing optical modules can increase network speed without changing lines, which can reduce transformation costs.
2. Low transmission loss and long relay distance;
Light waves transmit light with a wavelength of 1.31μm, and the loss per kilometer is less than 0.5dB. If light with a wavelength of 1.55μm is transmitted, the loss per kilometer is even smaller, reaching less than 0.2dB. At the same time, the transmission loss of optical fiber hardly changes with temperature, so there is no need to worry about the fluctuation of the trunk level caused by changes in ambient temperature. Therefore, when using optical fiber as a transmission relay, there is no need to configure a repeater at all. No matter how long the point-to-point transmission is, it can meet the transmission of high-speed signals.
3. Thin wire diameter and light weight;
In the LAN project of the integrated wiring system, compared with the network cable, the number of wires in the same line tube is more, and the large-pair optical cable is also thin in diameter and light in weight. It does not need to install a large-size bridge, and it can even be realized without the installation of a bridge, which reduces the cost of engineering construction. The construction of the optical fiber network is simple, the maintenance and repair are simple and convenient, and the equipment and facilities in the computer room are simplified, which can reduce the construction cost of the computer room and reduce the workload of workers in terms of wiring.
4. The raw material is quartz, which is rich in resources, saving metal materials and facilitating the rational use of resources;
The raw material quartz (silicon dioxide) is rich and inexhaustible on the earth, making the cost of producing optical fiber cables low. The cost of optical fiber is only one-tenth of that of network cables. After the establishment of a full optical fiber network system, there will be almost no need for copper cables, which greatly saves the use of metal copper and can convert a large amount of metal copper to other uses.
5. Strong insulation and anti-electromagnetic interference performance;
Because optical fiber does not contain metal, it is non-conductive and inductive, not subject to electromagnetic interference, and does not require a shielding layer in the structure, and can save metal materials such as aluminum and lead.
6. It also has strong corrosion resistance, strong radiation resistance, and good winding performance;
Due to this advantage, it can be used in any place.
7. No electric sparks will be generated.
Because optical fiber relies on photon transmission, no current is generated in the line, and no electrical safety accidents will occur.
8. Small leakage and strong confidentiality;
The optical fiber communication transmits signals by refracting light waves in the fiber core layer, i.e. the cladding, and transmits photons. The received photon signals are converted into digital signals for communication. Photons will not leak out of the cladding, thus ensuring the confidentiality of signal transmission.
