Recently, Japan Electric Company successfully demonstrated long-distance transmission of single fiber, with a transmission distance of more than 11,000 kilometers and a capacity of 50.9Tbps, setting a new world record. This is the first time that a 50-band transmission of more than 10,000 kilometers has been achieved using a CL-band erbium-doped fiber amplifier (EDFA). Behind the new record, highlights the intense competition of large technology companies in long-haul fiber transmission. Enterprises such as Hengtong, Changfei, Zhongtian, and Bonfire are also vigorously developing low-loss, large-area fiber to meet the long-distance trunk transmission demand. With the continuous development of science and technology, the requirements for data transmission capacity and transmission speed of the network are also getting higher and higher, and the long-distance fiber has the advantages of high capacity, high speed and long distance, and its importance is gradually highlighted. Widely used in military, financial and other fields, especially for the submarine network connecting the world, long-distance fiber will have a huge impact on the submarine transmission network.
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Development trend of optical fiber transmission technology: high speed, large capacity and long distance
The footsteps of 5G are getting closer and closer. The information transmission of 5G not only relies on optical fiber as the medium, but also faces the demand of greatly increasing the capacity of transmission pipeline. Naturally, long-distance fiber transmission has become the focus of attention in the industry.