Orbital angular momentum multiplexed free-space optical communication systems based on coded modulation

Zhen Qu; Ivan B. Djordjevic

doi:10.3390/app8112179

Orbital angular momentum multiplexed free-space optical communication systems based on coded modulation

Zhen Qu, Ivan B. Djordjevic

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

In this paper, we experimentally investigate the turbulence mitigation methods in free-space optical communication systems based on orbital angular momentum (OAM) multiplexing. To study the outdoor atmospheric turbulence environment, we use an indoor turbulence emulator. Adaptive optics, channel coding, Huffman coding combined with low-density parity-check (LDPC) coding, and spatial offset are used for turbulence mitigation; while OAM multiplexing and wavelength-division multiplexing (WDM) are applied to boost channel capacity.

Original language	English (US)
Article number	2179
Journal	Applied Sciences (Switzerland)
Volume	8
Issue number	11
DOIs	https://doi.org/10.3390/app8112179
State	Published - Nov 7 2018

Keywords

Free-space optical communications
Orbital angular momentum
Turbulence mitigation

ASJC Scopus subject areas

General Materials Science
Instrumentation
General Engineering
Process Chemistry and Technology
Computer Science Applications
Fluid Flow and Transfer Processes

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10.3390/app8112179

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abstract = "In this paper, we experimentally investigate the turbulence mitigation methods in free-space optical communication systems based on orbital angular momentum (OAM) multiplexing. To study the outdoor atmospheric turbulence environment, we use an indoor turbulence emulator. Adaptive optics, channel coding, Huffman coding combined with low-density parity-check (LDPC) coding, and spatial offset are used for turbulence mitigation; while OAM multiplexing and wavelength-division multiplexing (WDM) are applied to boost channel capacity.",

keywords = "Free-space optical communications, Orbital angular momentum, Turbulence mitigation",

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N2 - In this paper, we experimentally investigate the turbulence mitigation methods in free-space optical communication systems based on orbital angular momentum (OAM) multiplexing. To study the outdoor atmospheric turbulence environment, we use an indoor turbulence emulator. Adaptive optics, channel coding, Huffman coding combined with low-density parity-check (LDPC) coding, and spatial offset are used for turbulence mitigation; while OAM multiplexing and wavelength-division multiplexing (WDM) are applied to boost channel capacity.

AB - In this paper, we experimentally investigate the turbulence mitigation methods in free-space optical communication systems based on orbital angular momentum (OAM) multiplexing. To study the outdoor atmospheric turbulence environment, we use an indoor turbulence emulator. Adaptive optics, channel coding, Huffman coding combined with low-density parity-check (LDPC) coding, and spatial offset are used for turbulence mitigation; while OAM multiplexing and wavelength-division multiplexing (WDM) are applied to boost channel capacity.

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KW - Turbulence mitigation

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Orbital angular momentum multiplexed free-space optical communication systems based on coded modulation

Abstract

Keywords

ASJC Scopus subject areas

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