The rapid development of the information industry has made the Internet an indispensable part of people's working lives. During the "Eleventh Five-Year Plan" period, one of the overall objectives of the new-generation high-trust network major project in the area of ​​information technology in the "863" program launched by China is to realize the "three-in-one" of television network, telecommunication network, and computer network. The successful development of optical fiber and its supporting equipment has become the key to achieving this goal.
On May 21st, at the "11th China Beijing International Science and Technology Industry Expo Promotion of Scientific and Technological Achievements and Business Cooperation Project Promotion Conference - Sichuan Guang'an Plastic Optical Fiber System Application Industry Promotion Conference", the reporter personally experienced the replacement of ordinary copper cables with plastic optical fibers. Bring the fun of fast downloads. It took only a minute or two to download a high-definition movie, watch the farewell buffers and pauses online, and plastic optical fibers made the dreams of countless Internet users a reality.
According to Dr. Fang Sheng of GuangQueSheng Plastic Optical Fiber Co., Ltd., the successful development of plastic optical fiber and its supporting equipment can enable the broadband network speed to truly reach the level of 100Mb. TV network, telecommunication network, and computer network can also be used as a "triple play". Hope becomes a reality. 650 nanometer plastic optical fiber transmission system consists of wavelength converters, optical Ethernet switches, optical repeaters, optical network cards, photoelectric converters, plastic optical fiber cables and optical connectors and other nine products. The system allows the optical information flow to always exist in the form of light when it is transmitted and exchanged in the network. This new LAN system provides an ideal technical support for fiber to the desktop and fiber to the terminal.
The application of plastic optical fiber is in the information field, and its production and manufacturing are inseparable from the breakthrough of chemical polymerization process. In the manufacture of plastic optical fibers, China has mastered related technologies. Wang Zihe, chairman of Guang'an Optoelectronics Technology Co., Ltd., said that at present, China has overcome the technical difficulties in the direct production of poly(methyl methacrylate) mutant plastic optical fibers by bulk polymerization, and mastered the continuous production of plastic optical fiber technology; The various components and components required for the LAN optical fiber transmission system, domestic enterprises also have production technology with independent intellectual property rights. He said that, in theory, the length of plastic optical fiber transmission line can reach 2000 meters, but due to the problem of purity of raw materials, the current length of optical fiber transmission line in China is only about 100 meters.
According to Dr. Fang Sheng, at present, there are mainly three kinds of network information transmission media, namely copper cables with metal as medium, quartz optical fibers with quartz glass as medium, and emerging plastic optical fibers with polymer materials as medium. Due to the slow transmission speed of copper cables and the poor resistance to electromagnetic interference, they are gradually being replaced by quartz fibers in long-distance transmission. However, due to the difficulty of connection and high installation and maintenance costs, it is difficult for quartz optical fibers to play an important role in fiber-to-the-home and fiber-to-desktop short-distance dense applications. In the short-distance data transmission, the copper cable is still the main access, and the optical signal flow has to be changed into the electric information flow immediately before entering the terminal, which greatly reduces the information transmission speed. At present, the broadband speed can theoretically reach the level of 100Mbps, but in reality, due to the limitation of the transmission medium, it is at most 10Mbps, which is the so-called "last-kilometer" bottleneck problem in information transmission. This is an important reason why netizens complain about slow transmission.
Dr. Fang Sheng said that compared to traditional network systems using copper as the medium, the 650-nanometer plastic optical fiber transmission system has high bandwidth, good security performance, strong anti-interference ability, lightning protection, light weight, good toughness, simple construction, and saving of copper. Features such as resources; Compared to quartz optical fiber systems, plastic optical fiber transmission systems have features such as easy construction and connection, cheap light sources, and low overall cost. In all kinds of public and private LANs, especially in short-distance and relatively confidential and special environmental requirements, such as airborne, vehicle-mounted, shipboard internal communication networks, industrial control networks and other high-speed data transmission fields, plastic optical fiber can show their talents.
Now, Sichuan Guang'an has begun planning to build a plastic optical fiber industrial park. After the industrial park is completed, it can form an annual output of 7.5 million kilometers of plastic optical fiber, an annual output of 500,000 sets of network system equipment, and an annual output of 1 million chip modules.
It is worth noting that at present, there is no universal standard in the field of plastic optical fiber transmission systems, which provides an excellent opportunity for the development of optical fiber system applications in the country and raises new issues for the further development of the industry.
On May 21st, at the "11th China Beijing International Science and Technology Industry Expo Promotion of Scientific and Technological Achievements and Business Cooperation Project Promotion Conference - Sichuan Guang'an Plastic Optical Fiber System Application Industry Promotion Conference", the reporter personally experienced the replacement of ordinary copper cables with plastic optical fibers. Bring the fun of fast downloads. It took only a minute or two to download a high-definition movie, watch the farewell buffers and pauses online, and plastic optical fibers made the dreams of countless Internet users a reality.
According to Dr. Fang Sheng of GuangQueSheng Plastic Optical Fiber Co., Ltd., the successful development of plastic optical fiber and its supporting equipment can enable the broadband network speed to truly reach the level of 100Mb. TV network, telecommunication network, and computer network can also be used as a "triple play". Hope becomes a reality. 650 nanometer plastic optical fiber transmission system consists of wavelength converters, optical Ethernet switches, optical repeaters, optical network cards, photoelectric converters, plastic optical fiber cables and optical connectors and other nine products. The system allows the optical information flow to always exist in the form of light when it is transmitted and exchanged in the network. This new LAN system provides an ideal technical support for fiber to the desktop and fiber to the terminal.
The application of plastic optical fiber is in the information field, and its production and manufacturing are inseparable from the breakthrough of chemical polymerization process. In the manufacture of plastic optical fibers, China has mastered related technologies. Wang Zihe, chairman of Guang'an Optoelectronics Technology Co., Ltd., said that at present, China has overcome the technical difficulties in the direct production of poly(methyl methacrylate) mutant plastic optical fibers by bulk polymerization, and mastered the continuous production of plastic optical fiber technology; The various components and components required for the LAN optical fiber transmission system, domestic enterprises also have production technology with independent intellectual property rights. He said that, in theory, the length of plastic optical fiber transmission line can reach 2000 meters, but due to the problem of purity of raw materials, the current length of optical fiber transmission line in China is only about 100 meters.
According to Dr. Fang Sheng, at present, there are mainly three kinds of network information transmission media, namely copper cables with metal as medium, quartz optical fibers with quartz glass as medium, and emerging plastic optical fibers with polymer materials as medium. Due to the slow transmission speed of copper cables and the poor resistance to electromagnetic interference, they are gradually being replaced by quartz fibers in long-distance transmission. However, due to the difficulty of connection and high installation and maintenance costs, it is difficult for quartz optical fibers to play an important role in fiber-to-the-home and fiber-to-desktop short-distance dense applications. In the short-distance data transmission, the copper cable is still the main access, and the optical signal flow has to be changed into the electric information flow immediately before entering the terminal, which greatly reduces the information transmission speed. At present, the broadband speed can theoretically reach the level of 100Mbps, but in reality, due to the limitation of the transmission medium, it is at most 10Mbps, which is the so-called "last-kilometer" bottleneck problem in information transmission. This is an important reason why netizens complain about slow transmission.
Dr. Fang Sheng said that compared to traditional network systems using copper as the medium, the 650-nanometer plastic optical fiber transmission system has high bandwidth, good security performance, strong anti-interference ability, lightning protection, light weight, good toughness, simple construction, and saving of copper. Features such as resources; Compared to quartz optical fiber systems, plastic optical fiber transmission systems have features such as easy construction and connection, cheap light sources, and low overall cost. In all kinds of public and private LANs, especially in short-distance and relatively confidential and special environmental requirements, such as airborne, vehicle-mounted, shipboard internal communication networks, industrial control networks and other high-speed data transmission fields, plastic optical fiber can show their talents.
Now, Sichuan Guang'an has begun planning to build a plastic optical fiber industrial park. After the industrial park is completed, it can form an annual output of 7.5 million kilometers of plastic optical fiber, an annual output of 500,000 sets of network system equipment, and an annual output of 1 million chip modules.
It is worth noting that at present, there is no universal standard in the field of plastic optical fiber transmission systems, which provides an excellent opportunity for the development of optical fiber system applications in the country and raises new issues for the further development of the industry.
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