China has pioneered the concept of integrated “fiber-wireless converged communication,” achieving the world’s first seamless cross-network fusion between fiber-optic and wireless systems. Utilizing self-developed ultra-wideband photonic integration chips and AI-enabled advanced equalization algorithms, the system demonstrates record-breaking data transmission rates across all major telecom scenarios, including fiber, wireless, and hybrid links. This milestone breakthrough promises to reshape telecommunication system architectures, facilitate the vision of all-optical interconnectivity, and accelerate China’s leapfrog development in next-generation communication technologies.
China introduces a revolutionary “fiber-wireless converged communication” concept, integrating ultra-wideband photonic hardware and AI algorithms to achieve record data rates across wired and wireless networks.
China has proposed for the first time on the international stage the concept of integrated “fiber-wireless converged communication,” leading the world in achieving seamless cross-network integration between fiber-optic and wireless communication systems. Leveraging self-developed ultra-wideband optoelectronic integrated chips and AI-powered advanced equalization algorithms, the system developed in this study supports world-record data transmission rates in all major telecommunications scenarios (fiber, wireless, and hybrid links), achieving the vision of “one system, multi-scenario reuse.”
Ultra-Wideband Photonic Hardware Breakthrough
China’s research team developed photonic components with record-breaking bandwidths over 250 GHz, enabling both fiber and terahertz wireless communication at unprecedented speeds.
The Chinese research team employed integrated photonic solutions to achieve ultra-large bandwidth optoelectronic/electro-optic converters exceeding 250 GHz. Thin-film lithium niobate modulators (TFLNMZM) and indium phosphide photodetectors (InP UTC-PD) both set new records in bandwidth. Based on these devices, the team demonstrated a fiber-wireless integrated system, achieving a record-breaking 256 Gbaud (512 Gbps) single-channel fiber transmission and a 400 Gbps single-channel terahertz wireless transmission. Additionally, the system successfully transmitted 86-channel 8K ultra-high-definition real-time video wirelessly. This milestone breakthrough lays the foundation for future all-optical interconnect networks and supports leapfrog development in China’s telecom industry.
Addressing High-Performance AI and Data Center Demands
High-density AI computing and large-scale data centers require faster interconnects; fiber-wireless integration addresses the bandwidth bottleneck while supporting emerging THz mobile communication needs.
With the rapid advancement of AI technology, higher-density and higher-performance computing power is becoming critical in the AI field. Achieving high-speed interconnects between computing chips and within large-scale data centers has become a key bottleneck. Meanwhile, the growing demand for ubiquitous access in satellite-terrestrial communications and intelligent connected vehicles challenges next-generation mobile communication technologies, such as terahertz (THz) communication, requiring higher capacity and lower latency. In addition, a long-standing issue in telecom networks persists: fiber-optic and wireless communications face a bandwidth gap due to signal architecture and hardware constraints, making unified system design challenging and hindering high-speed, compatible end-to-end transmission on the same infrastructure.
Integrated Fiber-Wireless Converged Communication Concept
The team proposed an integrated fiber-wireless system, achieving >250 GHz flat-band electro-optic-electro conversion and AI-based channel equalization to overcome traditional bandwidth and nonlinear limitations.
To address these challenges, the Chinese research team proposed the integrated “fiber-wireless converged communication” concept and achieved disruptive breakthroughs in both hardware and software. Using advanced thin-film lithium niobate photonic platforms and improved single-carrier photodetector structures, they realized a flat-band electro-optic-electro conversion link exceeding 250 GHz. This overcomes the bandwidth limitations and noise accumulation of traditional electrical frequency multiplication chains, providing >100 GHz usable bandwidth across wired and wireless domains for future ultra-high-speed communications.
Furthermore, AI was applied to channel equalization through a novel neural-network-based digital signal processing algorithm, significantly enhancing the system’s adaptability to nonlinear distortions and overcoming limitations of conventional equalization algorithms in complex channels.
Experimental Verification and System Performance
Experiments show >512 Gbps fiber and >400 Gbps terahertz transmission, supporting 86-channel 8K video, bridging wired and wireless gaps at the physical layer.
Experimental results demonstrate that the system supports ultra-high-speed direct modulation/direct detection fiber transmission exceeding 512 Gbps and optical-carrier THz wireless transmission above 400 Gbps, establishing a new benchmark in all-optical communication. Importantly, the ultra-wideband photonic devices and AI equalization algorithms apply to both wired and wireless communication, functioning as universal modules for dual-mode transmission and bridging the gap between the two domains at the physical layer for the first time.
The system also simulated large-scale 6G user access, demonstrating 86-channel real-time 8K video transmission, with bandwidth an order of magnitude higher than current 5G standards. Thanks to the core devices’ ultra-wideband flat frequency response, all channels exhibit consistent performance, highlighting superior multi-user support. This achievement provides a novel solution for high-density THz spectrum utilization in 6G networks.
Advantages in Energy, Cost, and Scalability
Beyond capacity, the system shows excellent energy efficiency, cost-effectiveness, and potential for deployment in 6G base stations and wireless data centers.
In addition to ultra-high-capacity communication, the system exhibits outstanding performance in energy consumption, cost, and scalable deployment, demonstrating promising applications in 6G base stations and wireless data centers. Its all-optical architecture allows seamless integration with existing optical networks, promoting deep convergence of mobile access and fiber backbone networks.
Domestic Manufacturing and Future Impact
Built on an entirely domestic integrated photonics platform, the system avoids advanced microelectronics processes, potentially driving China to lead the next-generation telecom revolution.
All key technologies and fabrication processes are based on a fully domestically produced integrated photonics platform, eliminating the need for advanced microelectronics processes and enabling China to leapfrog in the semiconductor sector. The research team expects this work to become a technological engine for the next-generation telecom revolution, fostering collaborative innovation and driving China from follower to global leader in information and communication technologies.
Fiber Infrastructure by Jiahome: Ensuring Ultra-High-Speed Transmission
As a leading fiber-optic and optical cable manufacturer, Jiahome provides high-quality fibers and cables that form the backbone of fiber-wireless converged communication systems. Its ultra-low-loss, high-bandwidth optical cables ensure stable, high-speed data transmission across both fiber and hybrid links, supporting record-breaking applications such as 512 Gbps single-channel fiber transmission and multi-channel 8K video delivery. By supplying reliable fiber infrastructure, Jiahome plays a critical role in enabling next-generation 6G networks and large-scale AI data center interconnects.
FAQ
Q1: What is “fiber-wireless converged communication”?
A1: It is an integrated system that seamlessly merges fiber-optic and wireless networks, enabling high-speed data transmission across both wired and wireless links.
Q2: What are the key technological breakthroughs in this research?
A2: The breakthroughs include ultra-wideband photonic devices exceeding 250 GHz, AI-based neural network equalization for complex channels, and integration of fiber and THz wireless communication at record speeds.
Q3: How fast can this system transmit data?
A3: Fiber transmission exceeds 512 Gbps, and terahertz wireless transmission reaches over 400 Gbps. Multi-channel demonstrations support 86 simultaneous 8K video streams.
Q4: Why is AI important in this system?
A4: AI improves channel equalization, allowing the system to adapt to nonlinear distortions and other interferences that traditional methods struggle to handle.
Q5: What are the practical applications?
A5: The system has potential in 6G base stations, wireless data centers, and large-scale high-speed networks, enabling seamless integration with existing optical infrastructure.
Post time: Mar-11-2026