Liu Jiaxuan, Yu Jianjun, Zhao Xianming, Zhang Long, Yang Xiongwei, Wei Yi, Wang Mingxu, Sang Bohan, Zhao Feng
Opt Lett. 2024 Apr 1;49(7):1644-1647. doi: 10.1364/OL.515117.
In this Letter, we propose a dual-polarized coherent millimeter-wave system based on differential delta-sigma modulation (D-DSM) intended for long-distance wireless transmission in the W-band. The proposed system can transmit polarization-division-multiplexed (PDM) D-DSM signals with modulation orders up to 4194304QAM over a wireless channel for 4.6 km at a signal baud rate of 20 G. After 4.6 km of wireless transmission, we successfully achieve a bit error rate (BER) lower than the hard-decision forward error correction (HD-FEC) of 3.8 × 10 for 34.51 Gbit/s PDM-524288QAM and a BER lower than the soft-decision forward error correction (SD-FEC) of 4.2 × 10 for 32.23 Gbit/s PDM-4194304QAM.
在本信函中，我们提出了一种基于差分delta-sigma调制（D-DSM）的双极化相干毫米波系统，旨在用于W波段的长距离无线传输。所提出的系统能够在无线信道上以20 G的信号波特率传输调制阶数高达4194304QAM的极化分复用（PDM）D-DSM信号，传输距离达4.6 km。在4.6 km的无线传输之后，对于34.51 Gbit/s的PDM-524288QAM，我们成功实现了误码率（BER）低于3.8×10的硬判决前向纠错（HD-FEC）；对于32.23 Gbit/s的PDM-4194304QAM，我们成功实现了误码率低于4.2×10的软判决前向纠错（SD-FEC）。
