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- W3082942530 abstract "In this paper, a wide-spectrum orbital angular momentum (OAM) system with a polarization and optical time division multiplexing (OTDM) free-space transmission system is experimentally demonstrated. To enhance the system transmission performance in atmospheric turbulent channel, a wide-spectrum laser and an OAM beam are used. The wide-spectrum laser can be generated by utilizing pumped laser to pump nonlinear fiber, and OAM can be generated with a special light modulator. Furthermore, OTDM and polarization multiplexing methods are used to enhance the communication rate from 4 Gbit/s to 32 Gbit/s. With the use of the wide-spectrum laser and the OAM beam, the receiving scintillation index (SI) can be reduced, and detection sensitivity can be improved. It is the first time a wide-spectrum OAM communication system performance has been studied. It is shown that under weak atmospheric turbulence condition, the SI can be reduced by 38% and the receiving sensitivity can be improved by 3.18 dB via wide-spectrum OAM beams." @default.
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- W3082942530 date "2020-09-14" @default.
- W3082942530 modified "2023-10-18" @default.
- W3082942530 title "Receiving sensitivity improvement by wide-spectrum OAM with OTDM and polarization multiplexing in weak atmospheric turbulence" @default.
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- W3082942530 doi "https://doi.org/10.1364/ao.400119" @default.
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