Optical communications using orbital angular momentum beams

@article{Willner2015OpticalCU,
  title={Optical communications using orbital angular momentum beams},
  author={Alan E. Willner and Hao Huang and Yan Yan and Yongxiong Ren and Nisar Ahmed and Guodong Xie and Changjing Bao and Long Li and Yinwen Cao and Zhe Zhao and Jionag Wang and Martin P. J. Lavery and Moshe Tur and Siddharth Ramachandran and Andreas F. Molisch and Nima Ashrafi and Solyman Ashrafi},
  journal={Advances in Optics and Photonics},
  year={2015},
  volume={7},
  pages={66-106}
}
Orbital angular momentum (OAM), which describes the “phase twist” (helical phase pattern) of light beams, has recently gained interest due to its potential applications in many diverse areas. Particularly promising is the use of OAM for optical communications since: (i) coaxially propagating OAM beams with different azimuthal OAM states are mutually orthogonal, (ii) inter-beam crosstalk can be minimized, and (iii) the beams can be efficiently multiplexed and demultiplexed. As a result, multiple… 
850-nm hybrid fiber/free-space optical communications using orbital angular momentum modes.
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This paper discusses an experimental demonstration of a proposal for next generation FSO communication system where a light beam carrying different OAM modes and affected by ℳ turbulence is coupled to the multimode fiber link and reports a better and more robust behavior of higher order OAM Modes when the intermodal dispersion is dominant in the fiber after exceeding its maximum range of operation.
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Similar to other physical dimensions of light such as amplitude, phase, frequency, time and polarization, orbital angular momentum (OAM), which refers to the spatial structure of light (a spiral
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The methods for generation and detection of optical OAM, radio OAM and acoustic OAM are summarized and compared and the applications and technical challenges of OAM in communications are represented, including free-space optical communications, optical fiber communications, radio communications and acoustic communications.
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Angular momentum, a fundamental physical quantity, can be divided into spin angular momentum (SAM) and orbital angular momentum (OAM) in electromagnetic waves. Helically-phased or twisted light beams
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Orbital angular momentum (OAM) beams, characterized by the helical phase wavefront, have received significant interest in various areas of study. There are many methods to generate OAM beams, which
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TLDR
This work shows the direct use of a conventional graded-index multi-mode fiber (MMF) for OAM communications by exploiting fiber-compatible mode exciting and filtering elements and demonstrating two data-carrying OAM mode groups multiplexing transmission over the 2.6-km MMF with low-level crosstalk free of multiple-input multiple-output digital signal processing (MIMO-DSP).
Electrically optical phase controlling for millimeter wave orbital angular momentum multi-modulation communication
Abstract Orbital angular momentum (OAM), an emerging and fascinating degree of freedom, has highlighted an innovation in communication and optical manipulation field. The beams with different OAM
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Orbital angular momentum (OAM) in optical vortices (OV) beams offers a new dimension of space mode because coaxially propagating OV beams with different azimuthal OAM states are mutually orthogonal.
Gaussian vortex beam modeling for multiplexing in data communication using OAM
Optical vortices carrying orbital angular momentum (OAM) are being explored for improving the overall aggregate capacity along with the spectrum efficacy of data communications systems. The OAM
Free-space optical communication with perfect optical vortex beams multiplexing
Abstract We demonstrate a 2-channel orbital angular momentum (OAM) multiplexed free space optical communication (FSO) link using perfect optical vortex (POV) beams. POV beams are able to be
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TLDR
OAM-based reconfigurable optical switching functions among multiple OAM beams are demonstrated and the scheme of selective OAM-beam manipulation can be potentially cascaded to realize an arbitrary n×n switching function.
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TLDR
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TLDR
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TLDR
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TLDR
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TLDR
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TLDR
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TLDR
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