A paper exploring the advantages and disadvantages of optical fiber communication transmission technology and its application in modern communications

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Abstract: With the development of communication technology, the birth of optical fiber has brought about a qualitative change in signal transmission. In today's information age, the complexity of communication networks continues to increase, and it is necessary for modern communications. lay a solid foundation for its development. At present, the most widespread technology in communication engineering is modern optical fiber transmission technology, which has greatly improved the reliability and transmission rate of communication transmission. This article discusses the application of optical fiber transmission technology in modern communications by analyzing the advantages and disadvantages of modern optical fiber communication transmission technology.

Keywords: optical fiber communication; transmission technology; application;

1. Optical fiber communication technology

1. Brief description of optical fiber communication transmission technology.

Optical fiber communication transmission technology uses optical fiber as the medium. It has the advantages of long-distance transmission, large-capacity communication, and low environmental pollution. Optical fiber is divided into two types: communication optical fiber and sensing optical fiber. It can Shaping, frequency division, modulation of light waves, etc. are performed under different circumstances. In practical applications, optical fiber communication transmission technology has higher light wave frequency. Compared with ordinary transmission methods, optical fiber has higher transmission quality and smaller loss.

2. Characteristics of optical fiber communication technology.

(1) Low construction cost and low loss. As the level of transmission technology improves, the process of optical fiber transmission continues to reduce losses. Optical fiber communication mainly uses insulators made of quartz as materials. Compared with other types of optical fibers, it has the advantages of low cost and low loss. There is no need to install during the construction process. loop and grounding, and has good insulation, thus significantly reducing construction costs.

(2) Large capacity. Compared with cable and copper cable transmission, optical fiber transmission has less loss and higher bandwidth. Special technical means are used to expand the amount of optical fiber transmission information and achieve long-distance and efficient transmission.

(3) Occupies small space. The diameter of the optical fiber is very small, and the smaller the space it occupies during the construction process, the less construction tasks and later maintenance, saving time in optical fiber maintenance, which plays a very important role in the integration of communication systems.

(4) Good confidentiality and anti-interference ability. Quartz optical fiber has good insulation and corrosion resistance. It has strong resistance to electromagnetic interference released by high-voltage lines and electromagnetic interference in natural activities. It will not interfere with signal transmission. It is widely used in the military. . Traditional radio wave communication is prone to radio wave leakage problems and has poor confidentiality, but optical fiber communication technology has strong confidentiality and better protects the transmitted content.

2. Application of modern optical fiber communication transmission technology

(1) Single fiber bidirectional transmission technology. Nowadays, the existing double-fiber bidirectional technology is replaced by single-fiber bidirectional technology, which can save energy more effectively and reduce fiber consumption. Single-fiber bidirectional transmission technology uses manual signal modulation in different bands. Through technological improvements, it is more applicable. Access to fiber optic terminal equipment.

(2) FTTH access technology. That is, fiber-to-the-home access technology. FTTH mainly uses two communication solutions, PON passive optical network and P2P, for transmission. It has an all-fiber and fully transparent optical access network method, which provides a powerful force for the continuous acceleration of the three-network integration process. support. In order to meet consumers' demand for communication technology, fiber-to-the-home access technology is necessary. Although ADSL technology provides a good foundation in the field of information and communication, it will be used less and less in future communication services, especially In business such as conference television, online games and HDTV high-definition digital television.

(3) Application in power communications. The future development of power communications will be based on internal demand. Within the power grid;

The first is to reduce costs;

The second is to pay attention to the importance of communication, and outside the power grid, the first is to face market changes;

< p>The second is to overcome the impact on the outside world. According to this requirement, power communication-related staff are required to improve their professional level and strengthen communication to ensure the normal operation of power communication.

(4) Optical switching technology.

Optical switching technology is the exchange of optical signals during the information transmission process of optical fiber transmission technology. The traditional communication network is based on metal cables. The lines that transmit information and data exist in the form of electronic signals. Electronic signals are used Electronic switches are used for switching. At present, the traditional cable communication network has been replaced by optical fiber communication technology. Except for the user end part, which uses optical fiber limited number transmission, information data exists in the form of optical signals, but the technology is still electrical signal switching technology. Due to the optical switch The technology is immature and can only be transmitted by converting optical signals into electronic signals and then into optical signals. This method has low efficiency and high technical cost. Therefore, the development of large-capacity optical switching devices provides support for the realization of optical switching technology. However, Since large-capacity optical switching technology is not yet mature in small-particle, low-speed signal switching, electronic switching technology can also be used in small-particle signal switching.

3. Development Trend of Optical Fiber Communication Technology

(1) Intelligentization of optical networks. Our country's optical fiber communication method mainly uses transmission as the main line. However, with the rapid development of computer technology, computer technology has further developed network communication technology. Automatic information discovery technology, system protection and recovery functions, and automatic connection control technology make more use of modern optical network technology, promoting the intelligent development of optical networks. The intelligence of optical networks is also the main direction of development in the communications field.

(2) Integration of optical devices. In order to promote the development of network communication transmission speed, the integration of optical devices is an important development direction for realizing all-optical networks. Traditional ADSL broadband access cannot meet the current demand for information transmission. Therefore, the performance of optical devices must be improved to improve the information transmission speed. Therefore, in order to promote the development of optical fiber transmission technology, the integration of optical devices is an inevitable development direction.

(3) All-optical network. The all-optical network exists in the form of light during the signal exchange process and network transmission process, and performs electro-optical and photoelectric conversion when entering and exiting the network. Traditional optical network systems use electrical devices at network nodes to form all-opticalization between nodes, which affects the total capacity of optical fiber communication trunks. Therefore, realizing an all-optical network is a major issue. In order to achieve a pure all-optical network, it must Establish optical conversion technology and WDM technology to improve network information transmission speed and network resource utilization.

Conclusion:

Optical fiber communication transmission technology has become an important technology for information transmission in modern society. With the widespread use of optical fiber communication technology in the field of information communication, large capacity, high speed and long distance have become the main goal we pursue. With the advent of the Internet era, we must understand the current status, advantages and disadvantages of optical fiber communication transmission technology as soon as possible, and promote the development of optical fiber communication transmission technology.

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