Coding and decoding data by multiplexing vortex beams in free space
A novel concept of coding/decoding data is proposed by multiplexing vortex beams for short-haul-free-space light communication. Eight vortex beams carrying different orbital angular momentum (OAM) modes (-5, 3, -2, 1, 5, -3, 2, -1) are employed to code the initial information sequences into each 256...
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| Veröffentlicht in: | Optics communications Jg. 472; S. 125909 |
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01.10.2020
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| Abstract | A novel concept of coding/decoding data is proposed by multiplexing vortex beams for short-haul-free-space light communication. Eight vortex beams carrying different orbital angular momentum (OAM) modes (-5, 3, -2, 1, 5, -3, 2, -1) are employed to code the initial information sequences into each 256-ary symbols by different multiplexing approaches. A specially-designed Dammam vortex grating is utilized to decode the received vortex beams into the initial information sequences. In order to certifying the validity and feasibility of the proposed concept in practice, a proof-of-concept experiment is also proposed and established. The measured results demonstrate that a 128 × 128 gray-scale image (“Lena”) can be perfectly propagated over a 10 m free space by the proposed concept. In order to further evaluate the performance of the proposed concept, bit error rate (BER) against the received optical signal-to-noise ratio (OSNR) is also employed to analyzing the influences of some parameters on the system performances. The measured BER distributions demonstrate that the BER performance decreases as the data rate/propagation distance/atmosphere turbulence strength increases, respectively.
•We proposed a novel scenario of coding and decoding data by multiplexing vortex beams in free space is proposed.•Eight OAM modes are employed to code/decode data by (de)multiplexing for representing 256-ary symbols.•A single hologram is designed to generate the multiplexed vortex beams for coding.•A Dammam vortex grating is also designed for demodulating the received vortex beams.•An experiment is established for verifying the validity and feasibility of the proposed concept and analyzing the performance of the proposed system. |
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| AbstractList | A novel concept of coding/decoding data is proposed by multiplexing vortex beams for short-haul-free-space light communication. Eight vortex beams carrying different orbital angular momentum (OAM) modes (-5, 3, -2, 1, 5, -3, 2, -1) are employed to code the initial information sequences into each 256-ary symbols by different multiplexing approaches. A specially-designed Dammam vortex grating is utilized to decode the received vortex beams into the initial information sequences. In order to certifying the validity and feasibility of the proposed concept in practice, a proof-of-concept experiment is also proposed and established. The measured results demonstrate that a 128 × 128 gray-scale image (“Lena”) can be perfectly propagated over a 10 m free space by the proposed concept. In order to further evaluate the performance of the proposed concept, bit error rate (BER) against the received optical signal-to-noise ratio (OSNR) is also employed to analyzing the influences of some parameters on the system performances. The measured BER distributions demonstrate that the BER performance decreases as the data rate/propagation distance/atmosphere turbulence strength increases, respectively.
•We proposed a novel scenario of coding and decoding data by multiplexing vortex beams in free space is proposed.•Eight OAM modes are employed to code/decode data by (de)multiplexing for representing 256-ary symbols.•A single hologram is designed to generate the multiplexed vortex beams for coding.•A Dammam vortex grating is also designed for demodulating the received vortex beams.•An experiment is established for verifying the validity and feasibility of the proposed concept and analyzing the performance of the proposed system. |
| ArticleNumber | 125909 |
| Author | Zhang, Qianwu Song, Yingxiong Yang, Song Li, Yingchun Pang, Fufei Wang, Xiaohui Zhuang, Liyun Guo, Xinnian He, Xiaofeng Yang, Yudong Ju, Yongfeng |
| Author_xml | – sequence: 1 givenname: Xiaohui surname: Wang fullname: Wang, Xiaohui email: allenwxh@163.com organization: Faculty of Electronic Information Engineering, Huaiyin Institute of Technology, 1 Meicheng road, Huaian, DC 223303, China – sequence: 2 givenname: Yingxiong surname: Song fullname: Song, Yingxiong organization: Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai Institute for Advanced Communication and Data Science, Shanghai University, 99 Shangda road, Shanghai, DC 200444, China – sequence: 3 givenname: Fufei surname: Pang fullname: Pang, Fufei organization: Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai Institute for Advanced Communication and Data Science, Shanghai University, 99 Shangda road, Shanghai, DC 200444, China – sequence: 4 givenname: Yingchun surname: Li fullname: Li, Yingchun organization: Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai Institute for Advanced Communication and Data Science, Shanghai University, 99 Shangda road, Shanghai, DC 200444, China – sequence: 5 givenname: Qianwu surname: Zhang fullname: Zhang, Qianwu organization: Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai Institute for Advanced Communication and Data Science, Shanghai University, 99 Shangda road, Shanghai, DC 200444, China – sequence: 6 givenname: Liyun surname: Zhuang fullname: Zhuang, Liyun organization: Faculty of Electronic Information Engineering, Huaiyin Institute of Technology, 1 Meicheng road, Huaian, DC 223303, China – sequence: 7 givenname: Xinnian surname: Guo fullname: Guo, Xinnian organization: Faculty of Electronic Information Engineering, Huaiyin Institute of Technology, 1 Meicheng road, Huaian, DC 223303, China – sequence: 8 givenname: Yongfeng surname: Ju fullname: Ju, Yongfeng organization: Faculty of Electronic Information Engineering, Huaiyin Institute of Technology, 1 Meicheng road, Huaian, DC 223303, China – sequence: 9 givenname: Xiaofeng surname: He fullname: He, Xiaofeng organization: Faculty of Electronic Information Engineering, Huaiyin Institute of Technology, 1 Meicheng road, Huaian, DC 223303, China – sequence: 10 givenname: Song surname: Yang fullname: Yang, Song organization: Faculty of Electronic Information Engineering, Huaiyin Institute of Technology, 1 Meicheng road, Huaian, DC 223303, China – sequence: 11 givenname: Yudong surname: Yang fullname: Yang, Yudong organization: Faculty of Electronic Information Engineering, Huaiyin Institute of Technology, 1 Meicheng road, Huaian, DC 223303, China |
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| Cites_doi | 10.1109/LPT.2016.2551325 10.1103/PhysRevA.45.8185 10.1364/OE.26.010038 10.1109/JQE.2019.2940711 10.1364/OE.26.017300 10.1364/OE.23.026221 10.1038/nphoton.2012.138 10.1364/OL.40.004827 10.1364/AO.57.007492 10.1117/1.OE.57.9.094107 10.1109/JPHOT.2016.2594207 10.1117/1.OE.57.2.024105 10.1364/OL.35.003495 10.1364/OE.24.016934 10.1364/OL.41.000622 10.1364/OE.23.029457 10.1109/LPT.2016.2615036 10.1364/OE.25.029342 10.1364/OE.24.006240 10.1364/OE.24.011716 |
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