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Single-End Adaptive Optics Compensation for Emulated Turbulence in a Bi-Directional 10-Mbit/s per Channel Free-Space Quantum Communication Link Using Orbital-Angular-Momentum Encoding
A single-end adaptive-optics (AO) module is experimentally demonstrated to mitigate the emulated atmospheric turbulence effects in a bi-directional quantum communication link, which employs orbital angular momentum (OAM) for data encoding. A classical Gaussian beam is used as a probe to detect the t...
Autores principales: | , , , , , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
AAAS
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6750101/ https://www.ncbi.nlm.nih.gov/pubmed/31549088 http://dx.doi.org/10.34133/2019/8326701 |
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author | Liu, Cong Pang, Kai Zhao, Zhe Liao, Peicheng Zhang, Runzhou Song, Haoqian Cao, Yinwen Du, Jing Li, Long Song, Hao Ren, Yongxiong Xie, Guodong Zhao, Yifan Zhao, Jiapeng Rafsanjani, Seyed M. H. Willner, Ari N. Shapiro, Jeffrey H. Boyd, Robert W. Tur, Moshe Willner, Alan E. |
author_facet | Liu, Cong Pang, Kai Zhao, Zhe Liao, Peicheng Zhang, Runzhou Song, Haoqian Cao, Yinwen Du, Jing Li, Long Song, Hao Ren, Yongxiong Xie, Guodong Zhao, Yifan Zhao, Jiapeng Rafsanjani, Seyed M. H. Willner, Ari N. Shapiro, Jeffrey H. Boyd, Robert W. Tur, Moshe Willner, Alan E. |
author_sort | Liu, Cong |
collection | PubMed |
description | A single-end adaptive-optics (AO) module is experimentally demonstrated to mitigate the emulated atmospheric turbulence effects in a bi-directional quantum communication link, which employs orbital angular momentum (OAM) for data encoding. A classical Gaussian beam is used as a probe to detect the turbulence-induced wavefront distortion in the forward direction of the link. Based on the detected wavefront distortion, an AO system located on one end of the link is used to simultaneously compensate for the forward and backward channels. Specifically, with emulated turbulence and when the probe is turned on, the mode purity of photons carrying OAM ℓ = 1 is improved by ~ 21 % with AO mitigation. We also measured the performance when encoding data using OAM {ℓ = −1, + 2} and {ℓ = −2, + 1} in the forward and backward channels, respectively, at 10 Mbit/s per channel with one photon per pulse on average. For this case, we found that the AO system could reduce the turbulence effects increased quantum-symbol-error-rate (QSER) by ~ 76 % and ~ 74 %, for both channels in the uni-directional and bi-directional cases, respectively. Similar QSER improvement is observed for the opposite direction channels in the bi-directional case. |
format | Online Article Text |
id | pubmed-6750101 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | AAAS |
record_format | MEDLINE/PubMed |
spelling | pubmed-67501012019-09-23 Single-End Adaptive Optics Compensation for Emulated Turbulence in a Bi-Directional 10-Mbit/s per Channel Free-Space Quantum Communication Link Using Orbital-Angular-Momentum Encoding Liu, Cong Pang, Kai Zhao, Zhe Liao, Peicheng Zhang, Runzhou Song, Haoqian Cao, Yinwen Du, Jing Li, Long Song, Hao Ren, Yongxiong Xie, Guodong Zhao, Yifan Zhao, Jiapeng Rafsanjani, Seyed M. H. Willner, Ari N. Shapiro, Jeffrey H. Boyd, Robert W. Tur, Moshe Willner, Alan E. Research (Wash D C) Research Article A single-end adaptive-optics (AO) module is experimentally demonstrated to mitigate the emulated atmospheric turbulence effects in a bi-directional quantum communication link, which employs orbital angular momentum (OAM) for data encoding. A classical Gaussian beam is used as a probe to detect the turbulence-induced wavefront distortion in the forward direction of the link. Based on the detected wavefront distortion, an AO system located on one end of the link is used to simultaneously compensate for the forward and backward channels. Specifically, with emulated turbulence and when the probe is turned on, the mode purity of photons carrying OAM ℓ = 1 is improved by ~ 21 % with AO mitigation. We also measured the performance when encoding data using OAM {ℓ = −1, + 2} and {ℓ = −2, + 1} in the forward and backward channels, respectively, at 10 Mbit/s per channel with one photon per pulse on average. For this case, we found that the AO system could reduce the turbulence effects increased quantum-symbol-error-rate (QSER) by ~ 76 % and ~ 74 %, for both channels in the uni-directional and bi-directional cases, respectively. Similar QSER improvement is observed for the opposite direction channels in the bi-directional case. AAAS 2019-02-24 /pmc/articles/PMC6750101/ /pubmed/31549088 http://dx.doi.org/10.34133/2019/8326701 Text en Copyright © 2019 Cong Liu et al. https://creativecommons.org/licenses/by/4.0/ Exclusive licensee Science and Technology Review Publishing House. Distributed under a Creative Commons Attribution License (CC BY 4.0). |
spellingShingle | Research Article Liu, Cong Pang, Kai Zhao, Zhe Liao, Peicheng Zhang, Runzhou Song, Haoqian Cao, Yinwen Du, Jing Li, Long Song, Hao Ren, Yongxiong Xie, Guodong Zhao, Yifan Zhao, Jiapeng Rafsanjani, Seyed M. H. Willner, Ari N. Shapiro, Jeffrey H. Boyd, Robert W. Tur, Moshe Willner, Alan E. Single-End Adaptive Optics Compensation for Emulated Turbulence in a Bi-Directional 10-Mbit/s per Channel Free-Space Quantum Communication Link Using Orbital-Angular-Momentum Encoding |
title | Single-End Adaptive Optics Compensation for Emulated Turbulence in a Bi-Directional 10-Mbit/s per Channel Free-Space Quantum Communication Link Using Orbital-Angular-Momentum Encoding |
title_full | Single-End Adaptive Optics Compensation for Emulated Turbulence in a Bi-Directional 10-Mbit/s per Channel Free-Space Quantum Communication Link Using Orbital-Angular-Momentum Encoding |
title_fullStr | Single-End Adaptive Optics Compensation for Emulated Turbulence in a Bi-Directional 10-Mbit/s per Channel Free-Space Quantum Communication Link Using Orbital-Angular-Momentum Encoding |
title_full_unstemmed | Single-End Adaptive Optics Compensation for Emulated Turbulence in a Bi-Directional 10-Mbit/s per Channel Free-Space Quantum Communication Link Using Orbital-Angular-Momentum Encoding |
title_short | Single-End Adaptive Optics Compensation for Emulated Turbulence in a Bi-Directional 10-Mbit/s per Channel Free-Space Quantum Communication Link Using Orbital-Angular-Momentum Encoding |
title_sort | single-end adaptive optics compensation for emulated turbulence in a bi-directional 10-mbit/s per channel free-space quantum communication link using orbital-angular-momentum encoding |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6750101/ https://www.ncbi.nlm.nih.gov/pubmed/31549088 http://dx.doi.org/10.34133/2019/8326701 |
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