From Wuhan Post ASTRI learned that China's ultra-high-speed ultra-long-distance ultra-long-distance optical transmission of a new record of basic research to achieve 200Tb / s ultra-large wavelength division multiplexing and optical multiplexing, equivalent to 2.402 billion people in a Root fiber while talking. According to the authoritative forecast of the industry, by 2030, global network data traffic and per capita network data traffic will increase 1,000 times over 2010. Optical transport network, which is the basis of Internet and communication network, will continue to face the pressure of carrying huge amounts of data. Network expansion is imperative. The basic research carried out jointly by the State Key Laboratory of Fiber Optic Communication Technology and Network of Wuhan Post ASTRI and FiberHome Communication and Opto Xun Technology adopted the PCVD method with independent intellectual property rights to design and prepare a few mode optical fiber , Using the DFT-SOFDM 32QAM modulation. The experimental system also uses a 6 × 6 MIMO (Multiple Input Multiple Output) digital signal processing algorithm to effectively overcome the crosstalk between the three modes and the two polarizations, and to recover the signals between the modes. Last September 20 last reported by the Wuhan Institute of Posts and Telecommunications led by the Huazhong University of Science and Technology, Fudan University, Beijing University of Posts and Telecommunications, Xi'an University of Electronic Science and Technology National 973 project involved in "ultra-high-speed ultra-long-distance optical transmission of basic research ", For the first time to achieve an ordinary single-mode fiber transmission in the total capacity of 100.23Tb / s (equivalent to 1.201 billion people on a fiber simultaneously talk) when the transmission distance exceeded 80 km. The news was selected by the academicians of both houses as one of the top 10 scientific and technological progress news in 2014 in China. This is another important breakthrough in capacity indicators on the basis of last year's study. Hy1 Sintered Screw,Injection Molding Machine Barrel,Screw In Injection Moulding Machine,Screw In Injection Molding Machine ZHEJIANG HUAYE PLASTICS MACHINERY CO.,LTD , https://www.huaye-group.com