Grating-lobe-free optical phased array with 2-D circular sparse array aperture and high-efficiency phase calibration [PDF]
NanophotonicsAn optical phased array (OPA) with 2-D circular sparse array aperture has been proposed and demonstrated in the silicon integrated photonic platform. The sparse distribution of the antenna array can realize no grating lobes in 2-D full field of view (FOV)
Lian Daixin +5 more
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Si Photonics FMCW LiDAR Chip with Solid-State Beam Steering by Interleaved Coaxial Optical Phased Array [PDF]
Micromachines, 2023 Lingxuan Zhang +2 more
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Integrated circular optical phased array [PDF]
EPJ Web of Conferences, 2021 Existing OPAs are typically based on 2D rectangular arrays or 1D linear arrays. Both approaches present a limited field-of-view (FOV) due to the presence of the grating lobes when the element spacing is larger than λ/2.
Liu Qiankun +5 more
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All-optically controlled phased-array for ultrasonics. [PDF]
Nat CommunAbstract The ability to dynamically shape ultrasound fields is critical for emerging applications in therapeutic ultrasound, particle manipulation and tissue engineering. While existing phased arrays provide beam steering for imaging, these newer applications require higher intensities.
Goyal R +4 more
europepmc +5 more sources
Methods for determining the phase difference of the output signals for the receiving elements of a phased antenna array in a radiophoton circuit with parallel and series pairwise connection of electro-optical modulators [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2021 Obtaining accurate phase values of the output signals for the receiving elements of a phased array antenna is one of the crucial issues relating to radio-photon technologies in radar and radio communication.
Yaroslav N. Gusenitsa +3 more
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Low sidelobe silicon optical phased array with Chebyshev amplitude distribution [PDF]
NanophotonicsDaoxin Dai, Yaocheng Shi, Shi Zhao
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Optically Synchronized Phased Arrays in CMOS [PDF]
IEEE Journal of Solid-State Circuits, 2022 Optical synchronization of large-span arrays offers significant benefits over electrical methods in terms of the weight, cost, power dissipation, and complexity of the clock distribution network. This work presents the analysis and design of the first phased array transmitter synchronized using a fully monolithic CMOS optical receiver. We demonstrate a
Matan Gal-Katziri +3 more
openaire +2 more sources
Photonics, 2023 The small number of pixels in the current linear mode avalanche photodiode (LM-APD) array limits its three-dimensional (3D) imaging resolution. We use an optical phased array-based beam array subdivided pixel method to improve the 3D imaging resolution ...
Shuai Wang +7 more
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Underwater Wireless Laser-Based Communications Using Optical Phased Array Antennas
IEEE Photonics Journal, 2023 An underwater optical wireless communication system concept based on optical phased array antennas is presented. With this optical phased array, a laser beam can be electronically steered to adjust not only the azimuth and elevation angles, but also the ...
Ali Derakhshandeh +2 more
doaj +1 more source
Radial phased-locked Laguerre-Gaussian correlated schell-model beam array
Heliyon, 2022 A new beam array called radial phased-locked Laguerre-Gaussian correlated Schell-model (LGCSM) beam array is presented, the beamlet of this beam array is partially coherent beam with Laguerre Gaussian-Schell model correlation.
Yaotian Yan +5 more
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