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Demonstration of full-duplex optical wireless communication in dynamic environments, indicating enhancements in transceivers and field of view.
Optical wireless communication (OWC) offers promising solutions for next‐generation wireless networks. Traditional line‐of‐sight (LoS) OWC systems, relying on bulky lenses, face limitations in size and flexibility in scenarios with obstacles. Here, we first demonstrate full‐duplex line‐of‐sight (LoS) OWC employing silicon optical phased array (OPA) transceivers over a 120° field of view. The transceivers integrate dual silicon OPAs on a single chip for signal transmission and reception. The silicon OPA features on‐chip beam shaping and solid steering while maintaining a compact size. Furthermore, a non‐line‐of‐sight (NLoS) OWC system with OPA transceivers is proposed, featuring obstacle‐adaptive and signal‐regeneration transmission capabilities. The NLoS system ensures reliable 220 Gbps transmission in the presence of obstacles, and supports signal regeneration reducing the bit error rate (BER) by more than nine orders of magnitude compared to LoS link. The integration of full‐duplex and NLoS transmission accelerates the fully integrated, high‐performance OWC systems in dynamic environments.
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Li et al. (2025) studied this question.
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