Why are fiber optic cables so important in international communications?

Because fiber optic cables can ensure the timeliness and security of messages, sending and receiving messages quickly and the possibility of theft is also small.

Because fiber optic cables can make international communication smooth and convenient.

Because the speed of optical cable transmission is very fast, I will be more important.

Because fiber optic cable is one of the most basic facilities for data transmission.

Because this speed is very fast, it is very important.

Because nowadays, human long-distance communication basically relies on optical cables to transmit information.

Because without fiber optic cables, there is no way to transmit quickly, and other materials are too slow.

Because the information that we can receive now is all through fiber optic cables.

This is due to the fact that the role to be played in international communications is much larger.

So what's important is because its transfer speed is very fast.

1) Large communication capacity and long transmission distance; The potential bandwidth of one fiber can reach 20thz. With such a bandwidth, it only takes about a second to transmit all the written data of human beings, ancient and modern, Chinese and foreign. At present, the 400Gbit S system has been put into commercial use.

The loss of optical fibers is extremely low, and at the vicinity of the wavelength of light, the loss of quartz fiber can be lower, which is lower than the loss of any current transmission medium. As a result, the transmission distance without a relay can be several times.

10. Even hundreds of kilometers. (2) Small signal crosstalk and good confidentiality performance;

3) Anti-electromagnetic interference, good transmission quality, electrical communication can not solve all kinds of electromagnetic interference problems, only optical fiber communication is not subject to all kinds of electromagnetic interference.

4) The optical fiber is small in size and light in weight, which is easy to lay and transport;

5) The material is abundant, the environmental protection is good, and it is conducive to saving non-ferrous metal copper. (6) There is no radiation, and it is difficult to eavesdrop, because the light waves transmitted by optical fibers cannot run out of optical fibers. (7) The optical cable has strong adaptability and long life.

What are the advantages of fiber optic communication compared to traditional cable communication?

The biggest advantage of fiber optic communication over commonly used cable communication is that fiber optics can transmit a larger amount of bandwidth, and fiber optics can transmit longer distances without relays.

In terms of resources, the use of optical fibers can save metal resources.

On October 15, 1993, the world's longest optical cable with a total length of 4,700 kilometers ran through China and was officially opened in Beijing. This is the longest fiber optic cable trunk in China at present, and the longest in the world at that time. So, why are fiber optic cables so important in communication?

Submarine fiber optic cables are laid on the seabed to establish telecommunication transmissions between countries. There are submarine fiber optic cables not only on the seabed, but also on land. These fiber optic cables connect the world's networks with the best networks.

As a result, we can access the networks of countries around the world or make international calls** from the convenience of our homes. Because the Earth is a huge sphere, about 71% of its surface area is occupied by oceans. So most of the cables that we lay are on the bottom of the sea.

Optical fiber is mainly used as a signal transmission carrier. The full name of optical fiber is optical fiber, which is a very thin glass filament made of silica that can pass light. Optical fiber communication has the characteristics of transmission frequency bandwidth, large communication capacity, low loss, strong anti-interference ability and good confidentiality, and is widely used in communication engineering.

At present, the most important transmission mode is optical fiber transmission, such as the Internet Yu Jingsha business manuscript shortage and mobile phone business, all of which are based on optical fiber transmission. In the future, it is possible that the network will be fully fiber connected.

Communication optical cable: literally translated into Chinese is communication optical fiber cable. Formal definition: a certain number of optical fibers in a certain way to form a cable core, the outer layer is covered with a sheath, and some are also covered with an outer sheath to achieve optical signal transmission.

Chinese name: communication fiber optic cable.

Foreign name: communication optical fiber cable

Another name: communication fiber optic cable.

Applied Discipline: Information and Communication.

Features: optical fiber, cable core, sheath, optical signal.

Today, radio heterodyne communication is developing to optical heterodyne communication, communication equipment technology is developing from microelectronic integration to optoelectronic integration, single-pin response up-frequency, single-wavelength, single-channel forward multi-wavelength, multi-channel, microwave loss and delay load, wave-dense optical communication development, cable communication is being replaced by optical cable communication.