Characteristics of Optical Communication Technology

Fiber-to-the-home is being implemented steadily, and many people want to have a share in the field of optical communications. Today, ZR Cable will show you a preliminary understanding of optical communication.

ZR Cable Optical Fiber Communication

large information capacity

Optical fiber has a large communication capacity, and the transmission width of optical fiber is much larger than that of cable or copper wire. In theory, an optical fiber as thin as a human hair can transmit 100 billion channels at the same time.

Although it has not reached such a high transmission capacity, the experiment of transmitting 240,000 voice channels at the same time with one optical fiber has been successful, which is dozens or even thousands of times higher than the traditional open wire, coaxial cable, microwave, etc.

The transmission capacity of an optical fiber is so huge, and an optical cable can include dozens or even thousands of optical fibers. If the wavelength division multiplexing technology is used to use an optical fiber as several or dozens of optical fibers, its The communication capacity is even more astonishing.

Low loss, long distance transmission

The loss rate of optical fiber communication is much lower than that of ordinary communication. Due to the extremely low attenuation coefficient of optical fiber (commercialized silica fiber has reached below 0.19dB/km), if it is matched with appropriate optical transmission and optical reception equipment , which can make its relay distance up to hundreds of kilometers or more.

Strong anti-electromagnetic interference ability

Optical fiber is mainly an insulator material made of quartz as a raw material. This material has good insulation and is not easy to be corroded. The most important feature of optical fiber communication is that it has strong anti-electromagnetic interference ability, and is not subject to the interference of sunspot activities in nature, changes in the ionosphere, and the interference of lightning, and it will not be subject to artificial electromagnetic interference.

In addition, optical fiber communication can also be combined with power conductors to form a multi-row optical cable or erected in parallel with high-voltage wires. This feature of optical fiber communication has a great effect on the communication system in the field of strong electricity. Optical fiber communication systems can also be used in the military because they are not disturbed by the benefits of electromagnetic pulses.

Good security and confidentiality

In the previous transmission of radio waves, due to the phenomenon of leakage of electromagnetic waves in the process of transmission, it will cause interference to various transmission systems, and the confidentiality is not good.

However, optical fiber communication mainly uses light waves to transmit signals. The optical signal is completely confined in the structure of the optical waveguide, and other leaked rays will be absorbed by the outer sheath of the optical fiber line, even in a ring or a corner with poor conditions. There is also very little leakage of light waves.

And in the process of optical fiber communication, many optical fiber lines can be put into one optical fiber cable, and there will be no interference. Therefore, optical fiber communication has strong anti-interference ability and confidentiality, and the security performance of optical fiber communication is also very high.

Light weight, small size, easy construction and maintenance

Its tensile strength is good, its weight is small, and it is relatively small, so the optical cable can maximize the utilization rate of the wiring duct, and can reduce installation problems as much as possible.

Through the following figures, we can analyze the advantages of optical fibers. 1000 twisted pairs with a length of 1 km weigh 8000 kg, while two fibers with a larger capacity of 1 km are only 100 kg in weight, which greatly reduces the need for maintenance. The need for expensive mechanical support systems, so fiber is better than copper. Ease of construction and maintenance Ease of construction and maintenance Ease of construction and maintenance Ease of construction and maintenance. The laying method of optical fiber cable is convenient and flexible, which can be directly buried, pipeline laying, underwater and overhead.