Super-resolution orbital angular momentum holography
Nature Communications, 2023 The resolution of orbital angular momentum holography is limited by a fundamental sampling criterion. Here, the authors break the resolution barrier by temporal multiplexing of binary holograms and enhance the resolution and capacity by several times.
Zijian Shi +5 more
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Quantum multiplexing with the orbital angular momentum of light [PDF]
Physical Review A, 2008 The orbital angular momentum, OAM, of photons offers a suitable support to carry the quantum data of multiple users. We present two novel optical setups that send the information of n quantum communication parties through the same free-space optical link.
Garcia-Escartin, Juan Carlos +1 more
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Orbital Angular Momentum Mode Multiplexer Based on Multimode Micro-Ring Resonator with Angular Gratings [PDF]
, 2016 We demonstrate silicon photonic orbital angular momentum multiplexing devices based on mulitmode microring resonator. Up to four optical beams carrying different orbital angular momentum states can be selectively excited from different input ...
Cai, Xinlun +6 more
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Compact and high-performance vortex mode sorter for multi-dimensional multiplexed fiber communication systems [PDF]
, 2020 With the amplitude, time, wavelength/frequency, phase, and polarization/spin parameter dimensions of the light wave/photon almost fully utilized in both classical and quantum photonic information systems, orbital angular momentum (OAM) carried by optical
Chen, Yujie +8 more
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Angular momentum holography via a minimalist metasurface for optical nested encryption
Light: Science & Applications, 2023 Metasurfaces can perform high-performance multi-functional integration by manipulating the abundant physical dimensions of light, demonstrating great potential in high-capacity information technologies. The orbital angular momentum (OAM) and spin angular
Hui Yang +9 more
doaj +1 more source
Multiplexing Free-Space Channels using Twisted Light [PDF]
, 2015 We experimentally demonstrate an interferometric protocol for multiplexing optical states of light, with potential to become a standard element in free-space communication schemes that utilize light endowed with orbital angular momentum (OAM).
Boyd, Robert W. +5 more
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High-speed acoustic communication by multiplexing orbital angular momentum [PDF]
Proceedings of the National Academy of Sciences, 2017 Significance Acoustic communication is critical for underwater application such as deep-ocean scientific explorations and off-shore industrial controls. This is because other techniques using electromagnetic waves are difficult for underwater applications due to the strong absorption of water. Optical communication, on the other hand, suffers
Shi, Chengzhi +3 more
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Spiral Transformation for High-Resolution and Efficient Sorting of Optical Vortex Modes [PDF]
, 2018 Mode sorting is an essential function for optical multiplexing systems that exploit the orthogonality of the orbital angular momentum mode space. The familiar log-polar optical transformation provides a simple yet efficient approach whose resolution is ...
Chen, Yujie +5 more
core +5 more sources
Multiplexing heralded single photons in orbital-angular-momentum space [PDF]
Physical Review A, 2019 Heralded single-photon source (HSPS) with competitive single photon purity and indistinguishability has become an essential resource for photonic quantum information processing. Here, for the first time, we proposed a theoretical regime to enhance heralded single-photons generation by multiplexing the degree of the freedom of orbital angular momentum ...
Shi-long Liu +9 more
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Test of mode-division multiplexing and demultiplexing in free-space with diffractive transformation optics [PDF]
, 2017 open5openGIANLUCA RUFFATO, 1; FILIPPO ROMANATO, ; 1Department of Physics and Astronomy ‘G. Galilei’, University of Padova; 2Laboratory for Nanofabrication of Nanodevices, c.so Stati Uniti 4GIANLUCA RUFFATO, 1; Romanato, Filippo; Ruffato, Gianluca ...
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