Advances in Optics and Photonics· 2015Q1· Review
Optical communications using orbital angular momentum beams
- 1,930citations
- Q1SCImago
- 2015year
Short summary
Orbital angular momentum (OAM) beams can increase optical communication capacity by allowing multiple data streams to be transmitted simultaneously on different OAM states, which are mutually orthogonal.
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Key points
- OAM beams possess a helical phase pattern, referred to as 'phase twist'.
- Coaxially propagating OAM beams with different states are mutually orthogonal, minimizing crosstalk.
- Multiple OAM states can serve as independent carriers for multiplexing data streams, boosting system capacity.
- Progress in OAM beam generation, detection, and multiplexing is reviewed for various communication scenarios.
AI-generated from the title and abstract; the full text is not read.
Abstract
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 OAM states could be used as different carriers for multiplexing and transmitting multiple data streams, thereby potentially increasing the system capacity. In this paper, we review recent progress in OAM beam generation/detection, multiplexing/demultiplexing, and its potential applications in different scenarios including free-space optical communications, fiber-optic communications, and RF communications. Technical challenges and perspectives of OAM beams are also discussed.
The authors' abstract, as published at the source. Advances in Optics and Photonics, 2015 · DOI ↗
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Field: Atomic and Molecular Physics, and Optics
Atomic and Molecular Physics, and OpticsPhysics and Astronomy