What are the benefits of the invention of optical fibre for communications?

Optical fibers are optical fibers.

It is a tool that uses the principle of total reflection of light in fibers made of glass and plastic to achieve light conduction.

So who invented fiber optics? Corning Glass.

Inc. researcher Robert Moirer, Donald.

Keck and Peter Schultz.

Optical fiber was invented.

In 1854 John Tyndall presented to the Royal Society.

Proving that light can be conducted by a curved stream of water, he thus proves that light signals can be completely bent; In 1880, Stress Mountain Graham Bell invented his light**, which transmits sound signals on a beam of light, due to the influence of the weather, causing Bell to stop further research on this invention; In 1880, William Wheeler invented a system of light pipes lined with a highly reflective coating. This system can be placed in the basement, illuminated by the light emitted by the arc lamp, and the light is channeled around the extended family with a conduit.

In 1895, the French engineer Henri designed a curved glass system that guided the light image on early television. In 1930 Ram, a German medical student, who was the first to assemble a bundle of optical fibers to carry the image, transmitted an image of a light bulb in his experimental report, but the image quality was poor. In 1961, Elias of the American Optical Corporation published single-mode optical fiber.

According to the theory, his fiber core is very small and can only carry light in one waveguide mode. Finally ushered in a huge progress! Charles Kao, 1964.

The Ph.D. identified an important device for long-term normative communication, with a specification of ten or 20 decibels per kilometer of optical loss, thus establishing the standard for optical fiber. Dr. Kao also illustrated the need for a purer glass to help reduce light loss. In 1970, Robert, Keck, and Schultz invented the optical fiber line, which transmits 65,000 times the signal of copper wire, which solved the problem proposed by Dr. Gao.

By the end of the century, more than 80% of the world's long-distance traffic will be carried out by fiber optic cables and 25 million kilometers of fiber optic cables.

The earliest time of appearance was 1870, when physicists discovered the principle of total reflection of light by chance, and published the relevant ** in 1996, in the mid-1990s, from the traditional communication field into the optical age, after the emergence of optical fiber, changed people's traditional communication mode; It is now highly popular in the field of communications, but now that we have entered the information age, the scale of this sensing technology is expanding, so the manufacturing cost has also decreased.

Since Charles Kao proposed the principle of optical fiber, Bell Labs in the United States began to study semiconductor lasers and invented them at the beginning. The transmission loss of the fiber was 4dB, and it was continuously improved. Finally, in 1976, the first optical fiber test circuit was invented at Bell Labs.

In the current life, the application is very widespread, and almost all electrical appliances in our lives will be used.

The application rate is very high, the emergence of optical cables, affecting the speed of information transmission, and then led to the technology of communication revolution, led to the development of information technology and society, this kind of thing has a relatively high transparency, like glass filament, In 1870, the physicist at that time Tyndall discovered the principle of total reflection of light, and then manufactured ultra-low consumption optical fiber.

Corning Glass researchers Robert Moirer, Donald Keck, and Peter Schultz invented optical fibers, or "optical waveguide fibers" (patent 3,711,262), that carry 65,000 times more information than copper wire, and through which the information carried by lightwave patterns can be decoded even at destinations a thousand miles away. The methods and materials they invented for fiber optic communication opened the door to the commercialization of fiber optics. From long-distance** services to the internet and medical devices such as endoscopes, fiber optics are now a major part of modern life.

The application of optical fiber in real life: the transmission signal transmission speed is fast, and it can be transmitted over long distances, and the signal is basically attenuated.

The first optical fiber was made by Charles Kao, the father of optical fiber, and optical fiber can achieve faster transmission and bring more convenience to people's lives. The penetration rate in daily life is very high, and optical fiber is used in almost all power transmission.

1. Local telephone trunk.

Usually the optical fiber arrives at the company's computer room first, and then the optical signal is converted into an electrical signal (coaxial cable) by the optical transceiver, and a pair of coaxial cables is a PRI, that is, a digital relay, although it is said to be one, but it can support 30 voice calls in and out at the same time, and office at the same time, which is equivalent to 30 analog relays.

2. Bit transmission method.

A bit is the smallest unit of data transmission. Bit synchronization means that the clock on the receiver has been adjusted to be exactly the same as the clock on the transmitter, so that the receiver can make a judgment in the middle of each bit after receiving the bit stream.

3. Network transmission lines.

It is used in global communication networks, public telecommunication networks of various countries (such as China's national first-class trunk lines, provincial second-level trunk lines and sub-county branch lines).

4. TV signal transmission.

It is also used for high-quality color television transmission, industrial production site monitoring and dispatching, traffic surveillance and control command, urban cable television network, and shared antenna (CATV) system.

5. Used in LAN.

It is used in optical fiber LAN and other such as in aircraft, spacecraft, ships, mines, power departments, military and corrosion and radiation.

1. Optical fiber communication is mainly used for local telephone trunks, and the advantages of optical fiber communication can be fully exerted here, gradually replacing cables and being widely used.

2. It is also used for long-distance trunk communication, which used to mainly rely on cable, microwave and satellite communication, but now it has gradually used optical fiber communication and formed a bit transmission method that has a global advantage;

3. Used in global communication networks and public telecommunication networks of various countries (such as China's national first-class trunk lines, provincial second-level trunk lines and branch lines below the county level);

4. It is also used for high-quality color television transmission, industrial production site monitoring and dispatching, traffic monitoring and control command, urban cable television network, shared antenna (CATV) system, and other optical fiber LAN and other such as in aircraft, spacecraft, ships, mines, power departments, military and corrosion and radiation.

It was learned from China Information and Communication Technology Group that China's optical communication technology has made breakthroughs again.

The State Key Laboratory of Optical Fiber Communication Technology and Network, the National Information Optoelectronics Innovation Center and other units have jointly researched and tackled key problems, and realized the optical transmission system experiment of ultra-large capacity wavelength division multiplexing and space division multiplexing for the first time in China, and the transmission capacity is 10 times the maximum capacity of the current commercial single-mode optical fiber transmission system, and can transmit about 130 data stored by 1TB hard disks within 1 second.

The experiment adopts the most advanced research results in optical transmission system technology, optical device and optical chip technology, and optical fiber and cable technology in China, marking that China has once again stepped up to a new level in the field of ultra-large capacity, ultra-long distance and ultra-high speed optical communication system research.

It is reported that the core optical chips and optical fibers used in this experiment are independently developed and have completely independent intellectual property rights.

**Communication Applications: Network-connected applications.

Summary. As an emerging technology in the technological revolution, optical fiber communication has developed rapidly and is constantly intelligentized to meet new needs such as mobile Internet and the Internet of Things.

The optical fiber technology that changed the world was proposed by the Chinese. In 1966, Charles Kao, the father of optical fiber in the world, published a pioneering basic principle of using quartz glass to make optical fibers (referred to as optical fibers) and apply them in communication, and an epoch-making change in communication methods was born, which had an important and far-reaching impact on human society. In 2009, Charles Kao was awarded the Nobel Prize in Physics.

Why did the invention of optical fiber lead to a revolution in the field of communications?

Hello dear! "Optical fiber is the physical foundation of the Internet, and the birth of optical fiber has triggered a revolution in communication technology. ”

As an emerging technology in the technological revolution, optical fiber communication is developing rapidly and constantly realizing intelligence to adapt to new needs such as mobile Internet and the Internet of Things to change the world. In 1966, Kao Kun, the father of Shiyan and the world of optical fiber, published a pioneering excavation of the first day, Kai Nianxiang innovatively proposed the basic principle of using quartz glass to make optical fiber (referred to as optical fiber) and applying it in communication, and an epoch-making communication mode change was born, which had an important and far-reaching impact on human society. In 2009, Charles Kao was awarded the Nobel Prize in Physics.

Optical fiber communication uses optical fiber fiber cable to replace the traditional metal cable of wheel closed silver, replaces the traditional electromechanical exchange with program-controlled digital exchange, and replaces analog communication with Layan digital communication.

The invention of optical fiber has led to a revolution in the field of communications. Especially on the Internet, if there is no optical fiber to build a broadband and large-capacity high-speed channel, the Internet disturbance can only stay in the theoretical assumption.

If you have any questions, please feel free to contact me.

Why did the invention of optical fiber lead to a revolution in the field of communications?

Because of the large carrier capacity of optical fiber communication, convenient communication security erection, high operating speed, easy maintenance, low cost and other reasons, it has developed rapidly.