On July 29, China Mobile launched the first commercial route of anti-resonance hollow-core fiber in China in Guang. This breakthrough not only realized the leap from the technical prototype to the actual application of the independently developed and fully self-owned anti-resonance hollow-core fiber with independent intellectual property rights in China, but also built a super low-latency "information expressway" for cross-border financial services between Shenzhen and Hong Kong. has made the efficiency of cross-border business processing a benchmark in the industry. During this period, China Mobile organized the industrial chain to output 2 CCSA research reports, enterprise standard, nearly 20 patents, 11 high-quality papers and other key results. In terms of technical indicators, the route shows three leading advantages:, the hollow-core fiber used in this commercial deployment focuses on optimizing the bidirectional data transmission delay between the data centers of the Shenzhen and Hong Kong Stock Exchanges.-time test data show that after the route is enabled, the cross-border data transmission delay between the two exchanges is reduced to 1.07 milliseconds, reaching the level in the industry. It adapts to the cross-border dedicated line business, such as high-frequency trading, which is extremely sensitive to latency. Second, the loss of in the process of transmission in this route is less than 0.09 dB/km. Compared with the commonly used optical fiber in the current market, the loss is reduced 7.6 times, refreshing the global record of the lowest loss of commercial optical fiber and optical cable, significantly improving the signal transmission distance and efficiency. Third, the use of instead of quartz to guide light reduces the nonlinear effect of light signal transmission in optical fiber by more than 1000 times, and the transmission distance and bandwidth can be improved through professional debugging under the condition that the existing system components remain unchanged.
As a disruptive technology in the field of optical communication, the anti-resonant hollow-core fiber is completely different from traditional solid- fibers. It adopts the "anti-resonance" reflection and guiding principle, confining optical signals to transmit in a "hollow glass tube" with a diameter of only more 20 microns. This is like replacing traditional iron tracks with magnetic levitation tracks. First, the transmission speed is comprehensively improved. Second, under the same passenger capacity it can travel further. Third, under the same distance, the passenger capacity is stronger. Compared with solid-core quartz fibers, its transmission delay is reduced by more than 0%, and the loss is reduced by nearly 50%. The transmission distance tested in the laboratory has also increased by about 10 times. In the future, will effectively reduce the comprehensive cost of financial industry dedicated lines, data center interconnection, and long-distance data transmission, and help improve the efficiency of various industries. The of the first commercial route marks a substantial step in the application of China's new type of optical communication core technology. It has laid a technical foundation for the construction of the Gudong-Hong Kong-Macao Greater Bay Area International Financial Hub and the high-quality development of cross-border financial business. China Mobile said that in the future it will continue to deepen the research and development and large-scale deployment of cutting-edge technologies such as hollow-core fibers, and jointly promote their large-scale application time-sensitive scenarios such as international data services and high-frequency financial transactions with industry partners, and continue to inject new impetus into the country's new type of information construction and digital economy development.
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