Group 1 - The core achievement is the successful establishment of the first domestic 400G wavelength division multiplexing (WDM) system for ultra-long-distance transmission in the power sector, achieving stable operation over a distance of 355 kilometers [1][2] - This development marks a significant step towards the evolution of power communication networks into ultra-large capacity, ultra-high speed, and ultra-long distance integration [1] - The project involved collaboration among several entities, including State Grid Xinjiang Electric Power Company, State Grid Economic and Technological Research Institute, and China Electric Power Research Institute [1] Group 2 - The successful implementation of the 400G optical transmission link is expected to significantly enhance the transmission performance and business capacity of the power communication backbone network [2] - The project team overcame key technical challenges related to ultra-long distance and large capacity transmission through innovative technology paths, including the construction of a high-order Raman large-capacity ultra-long-distance optical transmission system model [1] - The new generation of ultra-large capacity optical networks is deemed essential for supporting the construction of modern energy systems and new power systems [1]

Core Viewpoint - The successful establishment of the first single-wave 400G wavelength division system for ultra-long-distance transmission in the domestic power sector marks a significant advancement towards high-capacity, high-speed, and long-distance integration in power communication networks [1][2] Group 1: Technological Advancements - The project achieved a stable operation of a 400G optical transmission link over a distance of 355 kilometers, utilizing advanced technologies to address the challenges of long-distance and high-capacity transmission [1][2] - The construction of a high-order Raman large-capacity ultra-long-distance optical transmission system model was completed, optimizing key technologies such as optical power balancing and non-linear effect suppression [2] Group 2: Industry Context - The current 10G SDH and 100G OTN networks are insufficient to meet the future demands of large-capacity power services, including panoramic video monitoring and data collection [1] - The development of a new generation of ultra-large-capacity optical networks is essential for supporting the modern energy system and the construction of new power systems [1]