Atmospheric turbulence strength distribution along a propagation path probed by longitudinally structured optical beams
Abstract Atmospheric turbulence can cause critical problems in many applications. To effectively avoid or mitigate turbulence, knowledge of turbulence strength at various distances could be of immense value. Due to light-matter interaction, optical beams can probe longitudinal turbulence changes. Un...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-08-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-023-40381-z |
| _version_ | 1797558158741209088 |
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| author | Huibin Zhou Xinzhou Su Yuxiang Duan Hao Song Kaiheng Zou Runzhou Zhang Haoqian Song Nanzhe Hu Moshe Tur Alan E. Willner |
| author_facet | Huibin Zhou Xinzhou Su Yuxiang Duan Hao Song Kaiheng Zou Runzhou Zhang Haoqian Song Nanzhe Hu Moshe Tur Alan E. Willner |
| author_sort | Huibin Zhou |
| collection | DOAJ |
| description | Abstract Atmospheric turbulence can cause critical problems in many applications. To effectively avoid or mitigate turbulence, knowledge of turbulence strength at various distances could be of immense value. Due to light-matter interaction, optical beams can probe longitudinal turbulence changes. Unfortunately, previous approaches tended to be limited to relatively short distances or large transceivers. Here, we explore turbulence probing utilizing multiple sequentially transmitted longitudinally structured beams. Each beam is composed of Bessel-Gaussian ( $${{{{{{\rm{BG}}}}}}}_{{{{{{\mathcal{l}}}}}}{{=}}0,{k}_{z}}$$ BG l = 0 , k z ) modes with different $${k}_{z}$$ k z values such that a distance-varying beam width is produced, which results in a distance- and turbulence-dependent modal coupling to $${{{{{\mathcal{l}}}}}}{{{{{\mathscr{\ne }}}}}}0$$ l {{\relax \special {t4ht̂3)}\o:mathrel: {\unhbox \voidb@x \special {t4ht@+{38}{35}x2260;}x}}} 0 orders. Our simulation shows that this approach has relatively uniform and low errors (<0.3 dB) over a 10-km path with up to 30-dB turbulence-structure-constant variation. We experimentally demonstrate this approach for two emulated turbulence regions (~15-dB variation) with <0.8-dB errors. Compared to previous techniques, our approach can potentially probe longer distances or require smaller transceivers. |
| first_indexed | 2024-03-10T17:26:32Z |
| format | Article |
| id | doaj.art-8ef42bcbc4a24b2e922cf03140262e26 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-10T17:26:32Z |
| publishDate | 2023-08-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-8ef42bcbc4a24b2e922cf03140262e262023-11-20T10:09:40ZengNature PortfolioNature Communications2041-17232023-08-0114111310.1038/s41467-023-40381-zAtmospheric turbulence strength distribution along a propagation path probed by longitudinally structured optical beamsHuibin Zhou0Xinzhou Su1Yuxiang Duan2Hao Song3Kaiheng Zou4Runzhou Zhang5Haoqian Song6Nanzhe Hu7Moshe Tur8Alan E. Willner9Department of Electrical and Computer Engineering, University of Southern CaliforniaDepartment of Electrical and Computer Engineering, University of Southern CaliforniaDepartment of Electrical and Computer Engineering, University of Southern CaliforniaDepartment of Electrical and Computer Engineering, University of Southern CaliforniaDepartment of Electrical and Computer Engineering, University of Southern CaliforniaDepartment of Electrical and Computer Engineering, University of Southern CaliforniaDepartment of Electrical and Computer Engineering, University of Southern CaliforniaDepartment of Electrical and Computer Engineering, University of Southern CaliforniaSchool of Electrical Engineering, Tel Aviv UniversityDepartment of Electrical and Computer Engineering, University of Southern CaliforniaAbstract Atmospheric turbulence can cause critical problems in many applications. To effectively avoid or mitigate turbulence, knowledge of turbulence strength at various distances could be of immense value. Due to light-matter interaction, optical beams can probe longitudinal turbulence changes. Unfortunately, previous approaches tended to be limited to relatively short distances or large transceivers. Here, we explore turbulence probing utilizing multiple sequentially transmitted longitudinally structured beams. Each beam is composed of Bessel-Gaussian ( $${{{{{{\rm{BG}}}}}}}_{{{{{{\mathcal{l}}}}}}{{=}}0,{k}_{z}}$$ BG l = 0 , k z ) modes with different $${k}_{z}$$ k z values such that a distance-varying beam width is produced, which results in a distance- and turbulence-dependent modal coupling to $${{{{{\mathcal{l}}}}}}{{{{{\mathscr{\ne }}}}}}0$$ l {{\relax \special {t4ht̂3)}\o:mathrel: {\unhbox \voidb@x \special {t4ht@+{38}{35}x2260;}x}}} 0 orders. Our simulation shows that this approach has relatively uniform and low errors (<0.3 dB) over a 10-km path with up to 30-dB turbulence-structure-constant variation. We experimentally demonstrate this approach for two emulated turbulence regions (~15-dB variation) with <0.8-dB errors. Compared to previous techniques, our approach can potentially probe longer distances or require smaller transceivers.https://doi.org/10.1038/s41467-023-40381-z |
| spellingShingle | Huibin Zhou Xinzhou Su Yuxiang Duan Hao Song Kaiheng Zou Runzhou Zhang Haoqian Song Nanzhe Hu Moshe Tur Alan E. Willner Atmospheric turbulence strength distribution along a propagation path probed by longitudinally structured optical beams Nature Communications |
| title | Atmospheric turbulence strength distribution along a propagation path probed by longitudinally structured optical beams |
| title_full | Atmospheric turbulence strength distribution along a propagation path probed by longitudinally structured optical beams |
| title_fullStr | Atmospheric turbulence strength distribution along a propagation path probed by longitudinally structured optical beams |
| title_full_unstemmed | Atmospheric turbulence strength distribution along a propagation path probed by longitudinally structured optical beams |
| title_short | Atmospheric turbulence strength distribution along a propagation path probed by longitudinally structured optical beams |
| title_sort | atmospheric turbulence strength distribution along a propagation path probed by longitudinally structured optical beams |
| url | https://doi.org/10.1038/s41467-023-40381-z |
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