Journal ArticleDOI
Terabit free-space data transmission employing orbital angular momentum multiplexing
Jian Wang,Jian Wang,Jeng-Yuan Yang,Irfan Fazal,Nisar Ahmed,Yan Yan,Hao Huang,Yongxiong Ren,Yang Yue,S. Dolinar,Moshe Tur,Alan E. Willner +11 more
TLDR
In this paper, the authors demonstrate the ability to multiplex and transfer data between twisted beams of light with different amounts of orbital angular momentum, which provides new opportunities for increasing the data capacity of free-space optical communications links.Abstract:
Researchers demonstrate the ability to multiplex and transfer data between twisted beams of light with different amounts of orbital angular momentum — a development that provides new opportunities for increasing the data capacity of free-space optical communications links.read more
Citations
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Journal ArticleDOI
Space-division multiplexing in optical fibres
TL;DR: In this paper, the authors summarized the simultaneous transmission of several independent spatial channels of light along optical fibres to expand the data-carrying capacity of optical communications, and showed that the results achieved in both multicore and multimode optical fibers are documented.
Journal ArticleDOI
Terabit-Scale Orbital Angular Momentum Mode Division Multiplexing in Fibers
Nenad Bozinovic,Yang Yue,Yongxiong Ren,Moshe Tur,Poul Kristensen,Hao Huang,Alan E. Willner,Siddharth Ramachandran +7 more
TL;DR: The viability of using the orbital angular momentum (OAM) of light to create orthogonal, spatially distinct streams of data-transmitting channels that are multiplexed in a single fiber is demonstrated and suggest that OAM could provide an additional degree of freedom for data multiplexing in future fiber networks.
Journal ArticleDOI
Terahertz Metamaterials for Linear Polarization Conversion and Anomalous Refraction
Nathaniel K. Grady,Jane E. Heyes,Dibakar Roy Chowdhury,Yong Zeng,Matthew T. Reiten,Abul Kalam Azad,Antoinette J. Taylor,Diego A. R. Dalvit,Hou-Tong Chen +8 more
TL;DR: In this paper, the authors demonstrated ultrathin, broadband, and highly efficient metamaterial-based terahertz polarization converters that are capable of rotating a linear polarization state into its orthogonal one.
Journal ArticleDOI
Optical communications using orbital angular momentum beams
Alan E. Willner,Hao Huang,Yan Yan,Yongxiong Ren,Nisar Ahmed,Guodong Xie,Changjing Bao,Long Li,Yinwen Cao,Zhe Zhao,Jian Wang,Martin P. J. Lavery,Moshe Tur,Siddharth Ramachandran,Andreas F. Molisch,Nima Ashrafi,Solyman Ashrafi +16 more
TL;DR: In this article, the authors 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.
Journal ArticleDOI
Optical vortices 30 years on: OAM manipulation from topological charge to multiple singularities
TL;DR: The authors survey the steady refinement of techniques used to create optical vortices, and explore their applications, which include sophisticated optical computing processes, novel microscopy and imaging techniques, the creation of ‘optical tweezers’ to trap particles of matter, and optical machining using light to pattern structures on the nanoscale.
References
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Journal ArticleDOI
Orbital angular momentum of light and the transformation of Laguerre-Gaussian laser modes.
TL;DR: Laser light with a Laguerre-Gaussian amplitude distribution is found to have a well-defined orbital angular momentum and an astigmatic optical system may be used to transform a high-order LaguERre- Gaussian mode into aHigh-order Hermite-Gaussia mode reversibly.
Book
Optical Coherence and Quantum Optics
Leonard Mandel,Emil Wolf +1 more
TL;DR: In this article, the authors present a systematic account of optical coherence theory within the framework of classical optics, as applied to such topics as radiation from sources of different states of coherence, foundations of radiometry, effects of source coherence on the spectra of radiated fields, and scattering of partially coherent light by random media.
Journal ArticleDOI
Entanglement of the orbital angular momentum states of photons
TL;DR: This work demonstrates entanglement involving the spatial modes of the electromagnetic field carrying orbital angular momentum, which provides a practical route to entangled states that involves many orthogonal quantum states, rather than just two Multi-dimensional entangled states could be of considerable importance in the field of quantum information, enabling, for example, more efficient use of communication channels in quantum cryptography.
Journal ArticleDOI
Laser Beams and Resonators
H. Kogelnik,Tingye Li +1 more
TL;DR: This paper is a review of the theory-of laser beams and resonators and emphasis is placed on formulations and derivations which lead to basic understanding and on results which bear practical significance.