The application of computer network communication technology provides many convenient conditions for people’s work and life, and optical fiber communication technology, as a new type of communication transmission technology, has played a certain role in promoting the development of computer network communication technology, making computer communication networks more It has been improved significantly in terms of information exchange speed and transmission distance.
The article mainly analyzes the concept, characteristics, application and development of computer network communication technology and optical fiber communication technology.
The computer communication network is a complex professional system, mainly composed of switching equipment and transmission equipment. The rational application of these equipment can not only ensure the smooth flow of the communication network, but also reduce the application cost of the communication system to a certain extent, fully demonstrating the modern intelligence. The application value of network technology.
Computer communication network has become an important way of current data information communication transmission.
Optical fiber communication technology is a typical modern communication technology, and its practical application effect is very significant. Under the support of computer and optical fiber communication technology, modern computer communication network has developed very rapidly.
Computer Network Communication Technology
Computer network communication technology uses network channels to effectively connect system end users in different areas through switching equipment and transmission equipment. This network communication mode is relatively complex, but it provides important information for the exchange and sharing of information resources between different users. channel.
In the use of communication technology, the docking communication process between two communication points needs to rely on the corresponding transmission medium. The transmission medium can effectively transmit data information while converting and transmitting data information, so as to realize the connection between different end-user information devices , build an intertwined information communication network.
Common computer network communication modes
Simplex, half-duplex and full-duplex are three common communication modes currently. The information data transmission in the simplex communication mode is unidirectional in the direction, and has a strong fixed attribute. The common remote control device communication belongs to this communication mode;
In the half-duplex communication mode, the transmission of information and data is bidirectional, and the roles of the sender and the sender can be converted to each other, but the bidirectional transmission cannot be performed at the same time;
In full-duplex communication mode, the information transmission between sender and receiver is bidirectional and can be carried out simultaneously.
To sum up, the full-duplex network communication mode is the most promising communication mode, and its typical application is a mobile phone.
The main technology of computer network communication
Data Communication Technology
Data communication technology can realize signal transmission and provide important channels for signal transmission in various fields. Its typical application fields include resource detection and automation technology.
The data communication system is composed of hardware and software systems. In addition to independently completing their own functions, they can also cooperate with each other to realize data transmission. Data communication has changed people’s work and lifestyle to a large extent.
Network connection technology
Network connection technology can effectively connect different communication devices by means of corresponding media.
The structure system of network connection is huge and complex, and the whole network structure includes various system factors such as medium and equipment.
The effective connection of the network can be achieved through the joint action of different factors, and the change of any one of these factors may have different degrees of influence on the effect of network connection.
For example, the functional properties of different dielectric materials in the network connection system are different, and the dielectric materials need to be selected according to the actual requirements of the network structure.
At the same time, because the transmission performance of the medium material is directly related to the application effect of the network connection, it is necessary to continuously optimize and improve the medium material of the network connection.
Network Protocol Technology
In computer network communication, network protocol technology is an important basis for ensuring the stability of network operation, including specific network application forms and application methods.
The structural form of computer network communication is related to the selection of network protocols. In order to realize the connection of specific computer network communication, different network protocols are used for different structural forms.
Therefore, the role of network protocols in the computer network system needs to be paid attention to.
Designers need to determine a reasonable network protocol according to the network structure, network medium, etc., in order to achieve effective connection between different terminal equipment.
Security Protection Technology
In order to realize the security protection of the entire communication system and ensure its high security, it is necessary to take scientific and effective security protection measures on the basis of a comprehensive understanding of the nature of the computer.
The network security protection of computer communication needs to be realized by software and hardware devices, so as to avoid abnormal users from interfering and destroying the computer system and ensure the normal use of the system.
Optical Fiber Communication Technology
Advantages and disadvantages of optical fiber communication technology
Advantages and disadvantages of optical fiber cOptical fiber communication technology is an important communication application technology, and optical fiber materials are the key application materials. This is because optical fiber materials have strong transmission capabilities, especially strong data transmission capabilities.ommunication technology
Advantages of Optical Fiber Communication Technology
Because the current wiring projects in the industry use the permanent link test method as the basis for project handover, which leads to the neglect of management of the equipment network patch cord and user lan patch cord. According to the above analysis, under normal circumstances, the original factory The quality of the supporting brand lan patch cable is guaranteed, and it is also within the warranty scope of the overall system.
As a designer, it is recommended that the number of brand patch cord cables be taken into account when configuring system materials to ensure the performance of the overall system. As the user side, the investment in the overall high-quality permanent link cabling system has accounted for more than 80% of the overall cabling. In order to reduce costs, if on-site production of lan patch cables or counterfeit patch cord cables purchased in the market is used, it will cause network stability and transmission performance. A drop would be more than worth the loss.
In practical applications, optical fiber communication technology has strong anti-magnetic interference performance. This is because the optical fiber communication material is mainly quartz, which can effectively resist external electromagnetic interference, make the data information flow transmitted by optical fiber communication more stable, and effectively avoid the interference of external factors on optical fiber communication. In addition, the use of optical fiber communication can also avoid the interference of factors such as external cables.
Large capacity and fast transmission speed
The communication capacity of optical fiber communication is quite large, because the bandwidth of optical fiber is wider than that of cable or copper wire, which makes optical fiber communication technology have the characteristics of ultra-large capacity and ultra-fast transmission speed.
Optical fiber communication technology also has good confidentiality, mainly because there will be no crosstalk and no information leakage during optical fiber communication transmission, so there will be no information theft or loss during information transmission. Ensure the security of information transmission.
Disadvantages of Optical Fiber Communication Technology
Optical fiber communication technology also has certain limitations in practical applications, which are mainly affected by the terminal equipment in the network system, especially in single-wavelength optical fiber communication systems, the application drawbacks of optical fiber communication are particularly prominent.
In this regard, it is necessary to further strengthen relevant experiments and research in order to overcome the difficulties encountered in the practical application of optical fiber communication technology and promote the development of optical fiber communication technology.
Optical fiber materials used in optical fiber communication technology are mainly optical fibers. The raw materials of optical fiber are mainly glass and plastic.
Optical fibers mainly include ordinary step fibers, photonic crystal fibers, and the like. Among the fiber materials, the most practical fiber material is made of quartz.
Silica fiber has the lowest loss rate, and the resulting relay distance is longer. The main constituent material of photonic crystal fiber is silicon crystal, and its structure is mainly crystalline structure. The typical structural feature of this material is the existence of a large number of air holes.
Application Significance and Classification of Optical Fiber Communication Technology
As computers are used more and more frequently in people’s work and life, users begin to require higher transmission speeds for network communications.
At the same time, with the gradual increase of the application population, the types and quantities of devices connected to the communication network have increased significantly.
Therefore, it is necessary to continuously optimize and improve the entire network system, and optimize its performance according to the actual application environment of optical fiber communication transmission technology. For example, when applying optical fiber communication technology in the military field, it is necessary to pay special attention to the optimization of information capacity and security performance.
The application of optical fiber access technology can effectively improve the speed of computer networks and expand the transmission bandwidth to a certain extent. The application of optical fiber communication transmission technology can effectively ensure the stability of the communication network, reduce the frequency of failures, and improve the user experience during use.
At this stage, optical fiber communication transmission technology mainly includes two categories: single-fiber transmission and dual-fiber transmission.
The signal transmission of single-fiber transmission technology is realized in the same fiber, but it needs to undergo specific wave modulation processing;
The signal transmission of the dual-fiber transmission technology is carried out in different optical fibers. Obviously, the amount of fiber material used for single fiber transmission is relatively small, which can effectively save the amount of fiber resources used, and the actual application cost is relatively low.
However, the application performance of single-fiber transmission still needs to be further improved and improved.
The specific application of optical fiber communication technology
With the development of optical fiber communication technology, it has been widely used in many fields and industries, such as the Internet of Things, cloud computing and other aspects.
Under the social background of the rapid development of information technology and network communication technology, optical fiber communication technology has become the mainstream technology in the communication field, especially in long-distance communication, the application of optical fiber communication technology is particularly extensive. The optical fiber communication technology also has the function of assisting the power system. At present, some power systems have already used the optical fiber communication technology, and a relatively complete dedicated communication network has been gradually built.
In addition, optical fiber communication technology is widely used in the field of radio and television because of its many advantages, which can effectively ensure the stability of information dissemination, and promote the development of the radio and television industry to a certain extent.
Attenuation and regeneration of optical fiber communication signals
As the distance increases, the optical fiber communication signal will continue to weaken, which is an unavoidable and important problem in the transmission of communication signals, and also the main problem that needs to be solved in the transmission of long-distance signals.
At present, in the treatment of related problems, signal amplifiers are mainly used to enhance light wave signals, which can offset the signal attenuation during signal transmission to a certain extent, but cannot fundamentally solve the problem of signal attenuation.
The weakening of the communication signal is directly related to the communication medium material, communication environment, communication technology, etc.
Taking silica fiber as an example, although it has good performance, the silica fiber material will contain different contents of impurity materials, and the proportion of these impurity materials will directly affect the communication transmission performance of the silica material and affect the loss of light wave energy consumption. .
In addition, if the optical fiber material is deformed to varying degrees during use, it will cause the loss of light wave energy consumption and affect the stability of the communication signal; improper handling of the connection of the optical fiber material will also lead to the attenuation of the communication signal.
In order to solve the problem of weakening communication signals, it is necessary to apply communication signal regeneration technology to ensure the normal transmission of communication signals and avoid further expansion of signal transmission accidents. The communication signal regeneration technology is mainly used to make up for the weakening of the communication signal, so as to reduce the actual operation and use cost of the communication network system.
For example, the application of communication signal regeneration technology on the submarine optical fiber can not only ensure the normal transmission of communication signals, but also reduce the maintenance cost of the submarine optical fiber.
Development of Optical Fiber Communication Technology
The application effect of optical fiber communication technology in data configuration, network maintenance, and network fault diagnosis is very significant. Optical fiber transmission has the characteristics of large capacity, especially when it is applied to the backbone network, its capacity is huge, so the application potential of optical fiber communication technology is very considerable.
According to the actual application of optical fiber communication technology and the development needs of society, the optical fiber communication system will inevitably develop in the direction of intelligence and integration.
The intelligent development of optical fiber communication will inevitably further improve the communication quality and communication efficiency of computer communication network;
The integrated development of optical fiber communication will realize the compression and re-optimization of computer network communication within a reasonable range, so that the construction cost of optical fiber communication network can be compressed to a certain extent, which is conducive to the optimization of construction cost.
At this stage, the intelligent and integrated application of optical fiber communication technology is still in the initial stage of development, which is caused by various factors, such as hardware equipment performance, technical difficulties, etc.
In addition, the optimization of the integration of optical fiber communication technology needs to focus on solving the difficult problem of phase and polarization state recovery, which also leads to the relatively difficult advancement of the integration of optical fiber communication technology.
All-optical network and optical arc communication technology are the mainstream application technologies in the development of optical fiber communication technology.
The application of all-optical network can give full play to the advantages of optical fiber communication, comprehensively improve the transmission efficiency of each communication node in the communication network, and effectively avoid the drawbacks that traditional communication media and devices are easily interfered by external factors in practical applications.
Traditional communication media and devices often suffer from signal attenuation during actual use. All-optical networks can effectively overcome this weakness and significantly improve the quality of fiber-optic communication, thereby improving user service processing experience. At this stage, the commonly used optical arc communication technologies mainly include optical fiber technology, amplification technology, source technology, switching technology, etc.
The transmission medium of photonic communication technology is mainly photonics. The application effect of this medium material in the long-distance signal transmission of communication systems is very significant. The application of photonics in the process of long-distance transmission can effectively reduce signal loss or signal loss. Distortion and other problems make the signal transmission more stable.
In general, the transmission capacity of the optical arc sub-communication technology is dozens of times that of the current traditional optical fiber communication, and the relay distance can reach hundreds of kilometers, which greatly meets the high-quality communication requirements of various industries.
Although optical arc communication technology has considerable application advantages, as a cutting-edge advanced technology, optical arc communication technology also has certain limitations, mainly focusing on fiber loss, optical arc interaction, high-order dispersion effect , birefringence in single-mode fibers, etc.
In view of the application advantages of photonic communication technology, further research is needed to improve the application performance of photonic communication technology, focusing on solving the application problems of photonic communication technology, so as to expand the application scope of photonic communication technology and improve its application quality .
To sum up, with the continuous development of science and technology, the application scope of computer network communication technology and optical fiber communication technology is becoming wider and wider, which not only provides convenient conditions for people’s work and life, but also greatly promotes the development of communication technology. develop.
At present, it is still necessary to increase the research and application of computer network communication technology and optical fiber communication technology to provide an important development foundation for the communication industry.