On January 5, the reporter learned from the Purple Mountain Laboratory of Network Communication and Security (hereinafter referred to as the Purple Mountain Laboratory) that the laboratory combined with Southeast University, Pengcheng Laboratory, Fudan University and China Mobile to build the first 360 -430GHz terahertz 100/200Gbps real-time wireless transmission communication experimental system, for the first time to achieve a single-wavelength net rate of 103.125Gbps, dual-wavelength net rate of 206.25Gbps terahertz real-time wireless transmission, the communication rate is 10-20 times higher than 5G, creating The highest real-time transmission record of terahertz real-time wireless communication publicly reported in the world.
The terahertz frequency band is extremely rich in frequency resources, which can support 100Gbps-1Tbps ultra-high-speed wireless communication, thereby increasing the existing 5G peak transmission rate by one to two orders of magnitude. Traditional Electronic terahertz technology is trapped by the inherent properties of electronic devices. The parameters of high-frequency electronic devices are gradually approaching the theoretical limit, facing a series of difficult challenges such as large transmission loss and limited frequency and bandwidth.
Professor You Xiaohu, deputy director and chief scientist of Zijinshan Laboratory, introduced that Zijinshan Laboratory has chosen photonic terahertz wireless communication as a new breakthrough direction, and gathered superior forces to build a leading domestic and world-class photonic terahertz experimental environment.
After more than three years of overcoming difficulties, the team pioneered a real-time transmission architecture integrating photonic terahertz fiber and completed the development of a photonic terahertz real-time wireless communication experimental system, breaking the public report that the real-time transmission rate of the terahertz communication system exceeds 100Gbps. The world record, the results were selected in the 2022 OFC Demo Zone, the top academic conference in the field of optical communications. This is also the only Demo Zone paper independently completed by scholars in the mainland of my country in the history of OFC terahertz communications.
It is reported that this achievement can be integrated with the existing optical fiber network to expand to form 100-1000Gbps outdoor and indoor ultra-high-speed wireless access, replace the existing mobile network and optical fiber to achieve rapid deployment, and replace the huge amount of cables in the data center to significantly reduce costs and power consumption. , Can be used for inter-satellite communication, aerospace integrated access, etc.
Source: China Science and Technology Network