Metasurface-assisted balanced-injection synchronization for turbulence-resilient long-haul chaotic free-space link

Fuente: arXiv
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Autori principali: Zhang, Yiqun, Xu, Mingfeng, Jiang, Ning, Zhou, Mengjie, Zheng, Yuhan, Chen, Sichao, Ding, Jiazheng, Chen, Shuangcheng, Yu, Yong, Yan, Xianglei, Zhang, Fei, Guo, Yinghui, Pu, Mingbo, Qiu, Kun, Luo, Xiangang
Natura: Preprint
Pubblicazione: 2026
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author Zhang, Yiqun
Xu, Mingfeng
Jiang, Ning
Zhou, Mengjie
Zheng, Yuhan
Chen, Sichao
Ding, Jiazheng
Chen, Shuangcheng
Yu, Yong
Yan, Xianglei
Zhang, Fei
Guo, Yinghui
Pu, Mingbo
Qiu, Kun
Luo, Xiangang
author_facet Zhang, Yiqun
Xu, Mingfeng
Jiang, Ning
Zhou, Mengjie
Zheng, Yuhan
Chen, Sichao
Ding, Jiazheng
Chen, Shuangcheng
Yu, Yong
Yan, Xianglei
Zhang, Fei
Guo, Yinghui
Pu, Mingbo
Qiu, Kun
Luo, Xiangang
contents Optical chaotic synchronization between coupled nonlinear lasers underpins most chaos-based applications, including complex laser network dynamics, secure communication, key distribution, and reinforcement learning. In free-space links, however, chaotic synchronization is highly vulnerable to stochastic fluctuation induced by atmospheric turbulence, which results in temporal injection imbalances at symmetric receivers and triggers intermittent desynchronization. Here, we introduce a full Poincaré vector beam-enabled balanced-injection synchronization (BIS) mechanism, which passively mitigates coupling fluctuations and preserves injection symmetry through a complementary metasurface pair, without requiring any channel estimation or active control. Over a 3.2 km urban link under moderately strong turbulence, BIS suppresses coupling power fluctuations by a factor of 4.6 (from 0.4511 to 0.0975). It eliminates desynchronization events and increases the high-quality synchronization probability from 58.6% to 91.0%. This enables a record-high bit rate-distance product of 720 Gbps \cdot km, reducing communication interruption probability by up to 77% compared to Gaussian beam transmission. Our innovative strategy bridges the gap between nanophotonics and engineering optics, offering a new insight into advancing next-generation LiDAR, secure communication, and integrated sensing and communication systems in turbulent environments.
format Preprint
id arxiv_https___arxiv_org_abs_2601_17701
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Metasurface-assisted balanced-injection synchronization for turbulence-resilient long-haul chaotic free-space link
Zhang, Yiqun
Xu, Mingfeng
Jiang, Ning
Zhou, Mengjie
Zheng, Yuhan
Chen, Sichao
Ding, Jiazheng
Chen, Shuangcheng
Yu, Yong
Yan, Xianglei
Zhang, Fei
Guo, Yinghui
Pu, Mingbo
Qiu, Kun
Luo, Xiangang
Optics
Chaotic Dynamics
Optical chaotic synchronization between coupled nonlinear lasers underpins most chaos-based applications, including complex laser network dynamics, secure communication, key distribution, and reinforcement learning. In free-space links, however, chaotic synchronization is highly vulnerable to stochastic fluctuation induced by atmospheric turbulence, which results in temporal injection imbalances at symmetric receivers and triggers intermittent desynchronization. Here, we introduce a full Poincaré vector beam-enabled balanced-injection synchronization (BIS) mechanism, which passively mitigates coupling fluctuations and preserves injection symmetry through a complementary metasurface pair, without requiring any channel estimation or active control. Over a 3.2 km urban link under moderately strong turbulence, BIS suppresses coupling power fluctuations by a factor of 4.6 (from 0.4511 to 0.0975). It eliminates desynchronization events and increases the high-quality synchronization probability from 58.6% to 91.0%. This enables a record-high bit rate-distance product of 720 Gbps \cdot km, reducing communication interruption probability by up to 77% compared to Gaussian beam transmission. Our innovative strategy bridges the gap between nanophotonics and engineering optics, offering a new insight into advancing next-generation LiDAR, secure communication, and integrated sensing and communication systems in turbulent environments.
title Metasurface-assisted balanced-injection synchronization for turbulence-resilient long-haul chaotic free-space link
topic Optics
Chaotic Dynamics
url https://arxiv.org/abs/2601.17701