Recently, China Mobile opened China's first commercial anti resonant hollow fiber optic line in Guangdong. This line is
independently developed and has complete independent intellectual property rights in China, achieving a leap from
 technical prototype to practical application, and building an ultra-low latency "information high-speed railway" for
cross-border financial business between Shenzhen and Hong Kong.

Technologically, the line exhibits three major advantages: firstly, the bidirectional transmission latency of the Shenzhen
 Hong Kong Stock Exchange data center has been reduced to 1.07 milliseconds, which is suitable for time sensitive
businesses such as high-frequency trading; Secondly, the transmission loss is less than 0.09dB/km, which is 7.6 times
lower than commonly used optical fibers and sets a record for the lowest loss of commercial optical fibers worldwide;
 The third is to use gas instead of quartz light guide, which reduces the nonlinearity of light transmission by more than
 1000 times and can improve transmission distance and bandwidth.

Unlike traditional solid core optical fibers, this technology is based on the principle of "anti resonance" reflection, which
 confines light in a "hollow glass tube" of more than 20 microns for transmission. The transmission speed is improved,
and under the same conditions, the transmission distance is longer, the passenger capacity is stronger, the delay is
reduced by more than 30%, and the loss is reduced by nearly 50%. The laboratory test transmission distance is
increased by about 10 times.

This opening marks a substantial step forward in the application of China's new core optical communication
technology, laying a solid technological foundation for the construction of an international financial hub in the
Guangdong Hong Kong Macao Greater Bay Area. In the future, China Mobile will deepen the research and
development of related technologies and scale deployment, promote their large-scale application in latency
sensitive scenarios, and inject new impetus into the development of new infrastructure and digital economy.