Gao Shuang, Jiang Yutong, Li Zhuoxin, Zhong Qing, Zhu Min, Zhang Jiao
National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China.
Purple Mountain Laboratories, Nanjing 211111, China.
Micromachines (Basel). 2024 Dec 11;15(12):1488. doi: 10.3390/mi15121488.
The millimeter-wave wireless transmission system is widely regarded as a promising solution for applications of future 6G communication. This paper presents an experimental comparison between all-optical and all-electric receivers for millimeter-wave communication systems over a 15 m wireless link and demonstrates 200 m and 2 km real-time uncompressed HD video transmission using an all-optical transceiver at 100 GHz. The systems leverage photonics-assisted heterodyne beating techniques at the transmitter, while the receivers employ either an avalanche photodiode (APD)-based all-optical approach or an envelope detection-based all-electric approach. Experimental results show that the all-optical transceiver supports significantly higher transmission rates, achieving error-free transmission at up to 11.318 Gbps over a 200 m wireless link without clock recovery, compared to the all-electric receiver, which is limited to only 3.125 Gbps error-free 15 m transmission. This work proves that the proposed system based on the all-optical receiver is more promising for supporting future 6G scenarios requiring ultra-wideband, high capacity, and wide coverage high-speed wireless communications.
毫米波无线传输系统被广泛认为是未来6G通信应用的一种很有前景的解决方案。本文展示了在15米无线链路上毫米波通信系统的全光接收机和全电接收机之间的实验比较，并演示了使用100GHz全光收发器进行200米和2公里实时未压缩高清视频传输。这些系统在发射端利用光子辅助外差拍频技术，而接收机采用基于雪崩光电二极管（APD）的全光方法或基于包络检测的全电方法。实验结果表明，与全电接收机相比，全光收发器支持显著更高的传输速率，在无时钟恢复的情况下，在200米无线链路上可实现高达11.318Gbps的无差错传输，而全电接收机在15米传输时无差错传输速率仅限制在3.125Gbps。这项工作证明，基于全光接收机的所提出系统在支持未来需要超宽带、高容量和广覆盖高速无线通信的6G场景方面更有前景。
