Changfei's new fiber-optic refresh single-span non-relay optical transmission world record

August 11, 2023

3/29/2018, Recently, Changfei Optical Fiber Cable Co., Ltd. (hereinafter referred to as "Changfei Company"), State Grid Corporation Information and Communication Branch (hereinafter referred to as "State Network ICT") and Wuhan Guangxun Technology Co., Ltd. (hereinafter referred to as "Lightspeed Technology") jointly announced: the use of Changfei's ultra-low loss large effective area G.654.E "Yuanbei® super strong " fiber and optical fast technology E-ULH "enhanced super long single span no relay optical system path "tripartite cooperation projects, the successful implementation 10G system 665.7km and 2. 5G system 713.2km single span without repeaters laboratory transmission tests were breaking the original single-span 2. 5G and 10G systems None The world record of relay optical transmission.

The new ultra-low loss large effective area fiber is one of the key core technologies for ultra long single-span non-relay optical transmission. The G.654.E fiber used in this experiment is a new fiber product developed by Changfei Company for long-distance transmission of backbone networks. The long-flying ultra-low loss large effective area fiber has a lower attenuation coefficient (0.15dB/km) and a larger effective area (130μm?). Compared with the traditional G.652 fiber, the non-relay transmission distance can be increased by 30%. the above.

This cooperation with State Grid and ICT for a record-breaking 2. 5G and 10G ultra-long single-span, non-relay optical transmission, showing Changfei's new fiber preparation technology in ultra-long single-span without relay The leading edge in the system and the technological innovation strength in the field of optical fiber communication for many years. At the same time, this series of successful experiments has laid a solid foundation for Changfei's ultra-low loss large effective area fiber in the long-distance transmission of power communication. The technical foundation has accumulated a wealth of experience.

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