Abstract
We propose a photonic-aided dual-vector radio-frequency (RF) signal generation and detection scheme enabled by bandpass delta-sigma modulation and heterodyne detection. With the aid of the bandpass delta-sigma modulation, our proposed scheme is transparent to the modulation format of the dual-vector RF signals and can support the generation, wireless transmission, and detection of both single-carrier (SC) and orthogonal-frequency-division-multiplexing (OFDM) vector RF signals with high-level quadrature-amplitude-modulation (QAM) modulation. With the aid of the heterodyne detection, our proposed scheme can support up to W-band (75–110 GHz) dual-vector RF signal generation and detection. For the validation of our proposed scheme, we experimentally demonstrate the simultaneous generation of a SC-64QAM signal at 94.5 GHz and a SC-128QAM signal at 93.5 GHz and their error-free high-fidelity transmission over a 20-km single-mode fiber 28 (SMF-28) and a 1-m single-input single-output (SISO) wireless link at the W-band. To the best of our knowledge, this is the first time that delta-sigma modulation has been introduced into a W-band photonic-aided fiber-wireless integration system to achieve flexible and high-fidelity dual-vector RF signal generation and detection.
© 2023 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Hengxin Yan, Xinying Li, Xiaolong Pan, Tangyao Xie, Liye Fang, Jiahao Bi, Han Jiang, and Xiangjun Xin
Opt. Lett. 49(8) 1919-1922 (2024)
Jiaxuan Liu, Jianjun Yu, Tangyao Xie, Xiongwei Yang, Long Zhang, Yi Wei, Tianqi Zheng, Jiao Zhang, Wen Zhou, Min Zhu, Jianguo Yu, and Feng Zhao
Opt. Lett. 48(11) 2873-2876 (2023)
Mingxu Wang, Jianjun Yu, Xianming Zhao, Weiping Li, Yi Wei, Xiongwei Yang, Junting Shi, Chengzhen Bian, Tangyao Xie, Feng Zhao, Jianguo Yu, Wen Zhou, and Kaihui Wang
Opt. Lett. 48(15) 3997-4000 (2023)