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Communicating Using Spatial Mode Multiplexing: Potentials, Challenges, and Perspectives
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DOI：10.1109/COMST.2019.2915981.png)
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摘要
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Time, polarization, and wavelength multiplexing schemes have been used to satisfy the growing need of transmission capacity. Using space as a new dimension for communication systems has been recently suggested as a versatile technique to address future bandwidth issues. We review the potentials of harnessing the space as an additional degree of freedom for communication applications including free space optics, optical fiber installation, underwater wireless optical links, on-chip interconnects, data center indoor connections, radio frequency, and acoustic communications. We focus on the orbital angular momentum (OAM) modes and equally identify the challenges related to each of the applications of spatial modes and the particular OAM modes in communication. We further discuss the perspectives of this emerging technology. Finally, we provide the open research directions and discuss the practical deployment of OAM communication links for different applications.
Keyword:
Acoustic beams
Multiplexing
Optical fiber communication
Laser beams
Optical polarization
Antenna arrays
Space division multiplexing
orbital angular momentum
free space optics
optical fibers
vortex fibers
underwater wireless optical communication
radio frequency
millimeter waves
optical interconnects
optical switching
fiber nonlinearity
atmospheric turbulence
oceanic turbulence
crosstalk
adaptive optics
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Potentials and challenges of using orbital angular momentum communications in optical interconnects.png)
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