Encoding/Decoding of Composite Vortex Beams with Spaced Orbital Angular Momentums

Pengfei Wu; Xiaodie Wang; Jiao Wang; Zhenkun Tan; Zhiyuan Jia

doi:10.3788/AOS222187

Journals >Acta Optica Sinica >Volume 43 >Issue 11 >Page 1126001 > Article

Acta Optica Sinica
Vol. 43, Issue 11, 1126001 (2023)

Encoding/Decoding of Composite Vortex Beams with Spaced Orbital Angular Momentums

Pengfei Wu^1、*, Xiaodie Wang¹, Jiao Wang², Zhenkun Tan³, and Zhiyuan Jia¹

Author Affiliations

¹School of Automation and Information Engineering, Xi'an University of Technology, Xi'an 710048, Shaanxi, China

²School of Electronic Information and Artificial Intelligence, Shaanxi University of Science & Technology, Xi'an 710021, Shaanxi, China

³School of Opto-electronical Engineering, Xi'an Technological University, Xi'an 710021, Shaanxi, China

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DOI: 10.3788/AOS222187 Cite this Article Set citation alerts

Pengfei Wu, Xiaodie Wang, Jiao Wang, Zhenkun Tan, Zhiyuan Jia. Encoding/Decoding of Composite Vortex Beams with Spaced Orbital Angular Momentums[J]. Acta Optica Sinica, 2023, 43(11): 1126001 Copy Citation Text

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Fig. 1. Intensity distributions of 32 composite vortex beams

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Fig. 2. Encoding table corresponding to 32 composite vortex beams

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Fig. 3. Intensity distributions of single LG vortex beams corresponding to 32 composite vortex beams

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Fig. 4. Gradually-changing-period gratings. (a) Gradually-changing-period grating in x-axis direction; (b) gradually-changing-period grating in y-axis direction

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$Far-field diffraction pattern of LG vortex beam passing through gradually-changing-period grating in x-axis direction. (a) LG vortex beam |lm=+5,1〉; (b) gradually-changing-period grating along x-axis; (c) far-field diffraction pattern; (d) +1 order diffraction pattern; (e) 0 order diffraction pattern$

Fig. 5. Far-field diffraction pattern of LG vortex beam passing through gradually-changing-period grating in x-axis direction. (a) LG vortex beam |l_m=+5,1〉; (b) gradually-changing-period grating along x-axis; (c) far-field diffraction pattern; (d) +1 order diffraction pattern; (e) 0 order diffraction pattern

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$Far-field diffraction patterns corresponding to 32 single LG vortex beams passing through gradually-changing-period grating in x-axis direction$

Fig. 6. Far-field diffraction patterns corresponding to 32 single LG vortex beams passing through gradually-changing-period grating in x-axis direction

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$Far-field diffraction pattern of LG vortex beam passing through gradually-changing-period grating in y-axis direction. (a) LG vortex beam |lm=+3, 2〉; (b) gradually-changing-period grating along y-axis; (c) far-field diffraction pattern; (d) +1 order diffraction pattern; (e) 0 order diffraction pattern$

Fig. 7. Far-field diffraction pattern of LG vortex beam passing through gradually-changing-period grating in y-axis direction. (a) LG vortex beam |l_m=+3, 2〉; (b) gradually-changing-period grating along y-axis; (c) far-field diffraction pattern; (d) +1 order diffraction pattern; (e) 0 order diffraction pattern

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$Far-field diffraction patterns corresponding to 32 single LG vortex beams passing through gradually-changing-period grating in y-axis direction$

Fig. 8. Far-field diffraction patterns corresponding to 32 single LG vortex beams passing through gradually-changing-period grating in y-axis direction

Pengfei Wu, Xiaodie Wang, Jiao Wang, Zhenkun Tan, Zhiyuan Jia. Encoding/Decoding of Composite Vortex Beams with Spaced Orbital Angular Momentums[J]. Acta Optica Sinica, 2023, 43(11): 1126001

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