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A Low-Profile Dual-Polarized High-Gain Low Cross-Polarization Phased Array for Ku-Band Satellite Communications. [PDF]

Sensors (Basel)
Huang Y, Zhang J, Li X, Qi Z, Lu F, Jiang H, Xue X, Zhu H, Guo X.   +8 more
europepmc   +1 more source

Reconfigurable on-chip optical wireless switches on SiN-TFLN hybrid platform. [PDF]

Sci Rep
Khalid M, Simone M, Ferraresi S, Bellanca G, Petruzzelli V, Calò G.   +5 more
europepmc   +1 more source

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Compact 2D serpentine optical phased array

Applied Optics, 2021
We present a two-dimensional (2D) Si photonics optical phased array (OPA) using a serpentine design which eliminates the long directional couplers used in many 2D OPA designs. It significantly reduces the distance between the antenna benefitting far-field sidelobe reduction while maintaining high optical power use ...
Yangming, Ren, Lingxuan, Zhang, Wei, Zhao, Guoxi, Wang, NingNing, Feng, Wei, Wu, Xiaochen, Sun, Wenfu, Zhang   +7 more
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Optical phased array with on-chip phase calibration

Optics Letters, 2022
Optical phased arrays (OPAs) with phase-monitoring and phase-control capabilities are necessary for robust and accurate beamforming applications. This paper demonstrates an on-chip integrated phase calibration system where compact phase interrogator structures and readout photodiodes are implemented within the OPA architecture. This enables phase-error
Mathias Prost, Jon Øyvind Kjellman, Sarvagya Dwivedi, Aleksandrs Marinins, Hemant Kumar Tyagi, Tangla David Kongnyuy, Philippe Soussan, Marcus S. Dahlem, Xavier Rottenberg, Roelof Jansen   +9 more
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Optical phased-array ladar

Applied Optics, 2014
We demonstrate a ladar with 0.5 m class range resolution obtained by integrating a continuous-wave optical phased-array transmitter with a Geiger-mode avalanche photodiode receiver array. In contrast with conventional ladar systems, an array of continuous-wave sources is used to effectively pulse illuminate a target by electro-optically steering far ...
Juan, Montoya, Antonio, Sanchez-Rubio, Robert, Hatch, Harold, Payson   +3 more
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Waveguide-Based Optical Phased Array

IEEE Photonics Technology Letters, 2013
A concept for a 3-D waveguide system, which can be used for optical phased arrays, is presented in this letter. We implemented static phased arrays with rod waveguides of different widths, which can be used for holographic applications. They are fabricated with direct laser writing, a technique based on two photon polymerization. As the element size of
Zheng, Yingjing, Lee, Hooi Sing, Meyne, Sascha, Petrov, Alexander, Eich, Manfred   +4 more
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Optical phased array technology

Proceedings of the IEEE, 1996
Optical phased arrays represent an enabling new technology that makes possible simple affordable, lightweight, optical sensors offering very precise stabilization, random-access pointing programmable multiple simultaneous beams, a dynamic focus/defocus capability, and moderate to excellent optical power handling capability.
P.F. McManamon, T.A. Dorschner, D.L. Corkum, L.J. Friedman, D.S. Hobbs, M. Holz, S. Liberman, H.Q. Nguyen, D.P. Resler, R.C. Sharp, E.A. Watson   +10 more
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Optically Interconnected Phased Arrays

SPIE Proceedings, 1988
Phased-array antennas are required for many future NASA missions. They will provide agile electronic beam forming for communications and tracking in the range of 1 to 100 GHz. Such phased arrays are expected to use several hundred GaAs monolithic integrated circuits (MMICs) as transmitting and receiving elements.
Kul B. Bhasin, Richard R. Kunath
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Phased array of phased arrays for free space optical communications

2003 IEEE Aerospace Conference Proceedings (Cat. No.03TH8652), 2004
An aperture composed of multiple small apertures has several advantages over a large continuous aperture when practical issues are included in the analysis. For example, a single bullet can easily produce a catastrophic failure of the laser communication link if all the optical gain for the transmitter (or receiver) is derived from a single large ...
S. Serati, J. Stockley
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