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China finally mastered the self-manufacturing technology of submarine fiber optic cable: the index exceeded foreign companies

August 06, 2022

Submarine fiber optic cable is an important part of communications, but you may not know that China did not create a submarine cable before. It will only purchase foreign brands.

According to the China Communications Network, at the "2017 Conference on Optical Information and Optical Networks" held yesterday, Academician Zhao Yusen of the Academy of Engineering said that we have now achieved a technological breakthrough and can manufacture and lay cables.

At present, China has developed a submarine fiber cable with a maximum length (245km) of double-layered beryllium copper pipe. At the same time, it has broken through the technological bottleneck of continuous manufacturing of large length submarine cable copper-arc argon arc welding, and realized a multi-type natural transition.

According to the academician, Fenghuo Marine Network Equipment Co., Ltd. has invested 2 billion yuan to build a submarine cable manufacturing plant in Zhuhai, Guangdong, and began mass production in May. It is expected that the annual output of the submarine cable will be 10,000 km long and 100 repeaters will be produced each year.

In addition, the second generation submarine cable is manufactured in China, and the United States and Japan started to use it last year. At the same time, the core index drawing technology, the speed of 2800 meters per minute, more than 2000 meters per minute Corning Corporation.

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