China Mobile drives 800G 1100 km with Huawei, YOFC
China Mobile Research Institute, working with Huawei and Yangtze Optical Fiber and Cable Joint Stock Limited Company (YOFC), has pushed 800G 1100 km, according to Huawei. The company did not disclose whether the test was a lab or field exercise.
In addition to fiber cabling from YOFC, the tests used 800G coherent technology Huawei introduced as a module in February 2020 for its OptiXtrans optical transport platforms (see "Huawei unveils 800G tunable optical module"). The approach leverages what Huawei describes as “second-generation channel matching shaping (CMS) technology, faster than Nyquist (FTN) algorithm, and AI neuron function modules.” The technology combination enables the modules to detect link environments in real time, then automatically optimize network transmission performance to ensure spectral efficiency and high transmission performance, Huawei adds.
"Traditional optical communication systems based on simple or lower-order modulation technologies, EDFA amplification, and G.652 fibers cannot meet the development requirements of large-capacity long-haul systems above 400G," commented Li Han, chief expert of China Mobile Group and director of the Network and IT Technology Research Institute of China Mobile Research Institute. "Key technologies and new infrastructures such as ultra-low-loss and large effective area fibers, Raman amplification, high-speed optical components, and higher-order modulation must be introduced. The application of 400G/800G and network upgrade provide a good opportunity to introduce new fiber infrastructures. The complexity of the technology and system needs to be tackled via the joint efforts throughout the entire industry chain."
"The work we've done with China Mobile Research Institute is definitely a milestone for Huawei's 800G solutions," said Simon Lu, president of Huawei's Transmission Network Domain. "Huawei will continue to provide global operators with superior solutions that feature high quality, reliability, and sustainable evolution."
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Stephen Hardy | Editorial Director and Associate Publisher, Lightwave
Stephen Hardy is editorial director and associate publisher of Lightwave and Broadband Technology Report, part of the Lighting & Technology Group at Endeavor Business Media. Stephen is responsible for establishing and executing editorial strategy across the both brands’ websites, email newsletters, events, and other information products. He has covered the fiber-optics space for more than 20 years, and communications and technology for more than 35 years. During his tenure, Lightwave has received awards from Folio: and the American Society of Business Press Editors (ASBPE) for editorial excellence. Prior to joining Lightwave in 1997, Stephen worked for Telecommunications magazine and the Journal of Electronic Defense.
Stephen has moderated panels at numerous events, including the Optica Executive Forum, ECOC, and SCTE Cable-Tec Expo. He also is program director for the Lightwave Innovation Reviews and the Diamond Technology Reviews.
He has written numerous articles in all aspects of optical communications and fiber-optic networks, including fiber to the home (FTTH), PON, optical components, DWDM, fiber cables, packet optical transport, optical transceivers, lasers, fiber optic testing, and more.
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