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<p>Photonics-assisted wireless communication provides a powerful pathway for next-generation infrastructures, offering ultra-wide bandwidth and high spectral agility. Despite extensive research and commercial adoption of photonics-assisted schemes such as radio-over-fiber in base station scenarios, their implementation in space-constrained and power-sensitive end devices remains highly challenging. The main obstacles arise from complex transceiver architectures, as mitigating effects of drift and jitter in carriers necessitates either high-purity sources or complex digital signal processing (DSP). Here, we propose a minimalist integrated photonics-assisted terahertz wireless transceiver solution tailored for lightweight systems. By employing residual carrier modulation and injection locking, we achieve a streamlined architecture using solely off-the-shelf 4 MHz linewidth distributed feedback laser chips and a single photodetector receiver, which supports 144 Gbps high-speed transmission at sub-terahertz frequency, meanwhile operating in a DSP-free regime for carrier recovery. The system also incorporates on-chip modulator and photodiode, enabling higher-level system integration. Eliminating the long-standing hardware burden and DSP overhead, the proposed scheme paves the way for lightweight, massive adoption of high-performance photonics-assisted wireless transceivers in end devices for ubiquitous access.</p>

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Minimalist terahertz wireless transceiver in integrated photonics

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年3月26日

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  • Yijun Guo,
  • Xuguang Zhang,
  • Yunhao Zhang,
  • Bitao Shen,
  • Luyu Wang,
  • Peiqi Zhou,
  • Tianyu Long,
  • Haoyu Wang,
  • Linshan Yang,
  • Minglu Li,
  • Zihan Tao,
  • Xi Xiao,
  • Zhixue He,
  • Lei Wang,
  • Baile Chen,
  • Xingjun Wang,
  • Haowen Shu

摘要

Photonics-assisted wireless communication provides a powerful pathway for next-generation infrastructures, offering ultra-wide bandwidth and high spectral agility. Despite extensive research and commercial adoption of photonics-assisted schemes such as radio-over-fiber in base station scenarios, their implementation in space-constrained and power-sensitive end devices remains highly challenging. The main obstacles arise from complex transceiver architectures, as mitigating effects of drift and jitter in carriers necessitates either high-purity sources or complex digital signal processing (DSP). Here, we propose a minimalist integrated photonics-assisted terahertz wireless transceiver solution tailored for lightweight systems. By employing residual carrier modulation and injection locking, we achieve a streamlined architecture using solely off-the-shelf 4 MHz linewidth distributed feedback laser chips and a single photodetector receiver, which supports 144 Gbps high-speed transmission at sub-terahertz frequency, meanwhile operating in a DSP-free regime for carrier recovery. The system also incorporates on-chip modulator and photodiode, enabling higher-level system integration. Eliminating the long-standing hardware burden and DSP overhead, the proposed scheme paves the way for lightweight, massive adoption of high-performance photonics-assisted wireless transceivers in end devices for ubiquitous access.