5GNetwork technology has increased the speed of wireless networks to1GbpsAbove, up to10Gbps, But this is not the end of internet speed. Countries are still developing6GNetwork technology, it is possible to use the terahertz frequency band. Recently, a number of domestic scientific research teams have realized that the network under terahertz exceeds100GpsNew world record.

According to the Science and Technology Daily News, the reporter5Japan learned from the Purple Mountain Laboratory of Network Communication and Security that the laboratory has joined Southeast University, Pengcheng Laboratory, Fudan University, China Mobile and other teams in the national key research and development plan.6GWith the support of special projects and other projects, the first360—430GHzFrequency band100/200GbpsReal-time wireless transmission communication experimental system.

For the first time, the net rate of a single wavelength is103.125Gbps, The dual-wavelength net rate is206.25GbpsTerahertz real-time wireless transmission, the communication rate is relatively5Gpromote10—20It has created the highest real-time transmission record of terahertz real-time wireless communication publicly reported in the world.

Terahertz frequency band is extremely rich in frequency resources and can support100Gbps—1TbpsUltra-high-speed wireless communication, thus transforming the existing5GThe peak transmission rate is increased by one to two orders of magnitude, which can meet the future6GNew application requirements such as holographic communication and meta universe.

Traditional electronic terahertz technology is trapped by the inherent properties of electronic devices, and 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 the Purple Mountain Laboratory, introduced that the Purple Mountain Laboratory chose photonic terahertz wireless communication as the6GWith a new breakthrough direction, we have gathered superior forces to build a leading domestic and world-class photonic terahertz experimental environment.

go through3After more than years of overcoming difficulties, the team pioneered the real-time transmission architecture integrating photonic terahertz fiber, and completed the development of the photonic terahertz real-time wireless communication experimental system, breaking the net rate of real-time transmission of the terahertz communication system.100GbpsThe public report of the world record, the results were selected2022Top Academic Conferences in the Field of International Optical CommunicationsOFC Demo Zone，This is alsoOFCThe only one in the history of terahertz communications that was independently completed by mainland scholars in my countryDemo Zonepaper.

It is reported that this result can be integrated with the existing optical fiber network,Extended composition100—1000GbpsOutdoor and indoor ultra-high-speed wireless access,It replaces the existing mobile network and optical fiber to achieve rapid deployment, replaces the huge amount of cables in the data center, significantly reduces cost and power consumption, and can be used for inter-satellite communication, aerospace integrated access, etc.

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