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2025-09-15 15:09:40
Optical Communication + AI Technology Breaks 254.7Tb/s Transmission Record Over 200km of Single-Mode Fiber: (1) According to a report by People's Post and Telecommunications on Monday, FiberHome, in collaboration with partners including China Mobile, the National Key Laboratory of Optical Communication Technology and Networks, and Pengcheng Laboratory, successfully achieved an ultra-high-speed transmission speed of 254.7Tb/s over 200km of standard single-mode fiber using transfer learning-based neural network equalization technology. (2) This technological breakthrough not only covers a 19.8THz spectrum bandwidth but also increases spectral efficiency to 12.86bit/s/Hz. This achievement has far-reaching implications for future optical network architecture design, application scenario expansion, and industry ecosystem development, setting a new milestone in the development of next-generation optical communication systems. Furthermore, this record-breaking transmission speed also marks a new stage in the development of AI-enabled optical communication systems. To meet the network demands of future 6G and low-altitude economy, optical networks must continue to upgrade towards higher capacity, lower latency, and greater resilience. ⑶ From the perspective of technical implementation adaptability, the standard single-mode optical fiber relied on by this technology is highly compatible with the current mainstream communication network infrastructure, eliminating the need for large-scale replacement of existing hardware, thus reducing the initial investment cost and implementation difficulty for subsequent commercialization of the technology.
