Beam steering dynamics in coupled oscillator based phased arrays with coupling delay

Radio Science ◽  
2009 ◽  
Vol 44 (2) ◽  
pp. n/a-n/a
Author(s):  
Ronald J. Pogorzelski
Keyword(s):  
Phased Arrays ◽  
Beam Steering ◽  
Coupled Oscillator ◽  
Coupling Delay

scholarly journals Serpentine optical phased arrays for scalable integrated photonic lidar beam steering

Optica ◽  
2020 ◽  
Vol 7 (6) ◽  
pp. 726 ◽  
Author(s):  
Nathan Dostart ◽  
Bohan Zhang ◽  
Anatol Khilo ◽  
Michael Brand ◽  
Kenaish Al Qubaisi ◽  
...  
Keyword(s):  
Phased Arrays ◽  
Beam Steering ◽  
Optical Phased Arrays

Optimum beam steering of linear phased arrays

Wave Motion ◽  
1999 ◽  
Vol 29 (3) ◽  
pp. 245-265 ◽  
Author(s):  
Shi-Chang Wooh ◽  
Yijun Shi
Keyword(s):  
Phased Arrays ◽  
Beam Steering

MANIPULATED SYNCHRONIZATION: BEAM STEERING IN PHASED ARRAYS

2000 ◽  
Vol 10 (11) ◽  
pp. 2619-2627 ◽  
Author(s):  
TED HEATH ◽  
KURT WIESENFELD ◽  
ROBERT A. YORK
Keyword(s):  
Phased Arrays ◽  
Beam Steering ◽  
Phase Shifts ◽  
Induce Phase

We consider a relatively new application of mutually interacting, synchronized oscillators. The idea is to intentionally introduce variations among the elements to induce phase shifts between the oscillators. Though often unwanted, in certain instances these phase shifts are highly desirable: We discuss how to manipulate array parameters in order to steer and scan the beam emanating from radiating arrays.

Optical beam steering using surface micromachined gratings and optical phased arrays

1997 ◽  
Author(s):  
David M. Burns ◽  
Victor M. Bright ◽  
Steven C. Gustafson ◽  
Edward A. Watson
Keyword(s):  
Phased Arrays ◽  
Beam Steering ◽  
Optical Beam ◽  
Optical Phased Arrays

scholarly journals Sidelobe-Free Beam-Steering using Optical Phased Arrays for Neural Probes

2021 ◽  
Author(s):  
Fu-Der Chen ◽  
Youngho Jung ◽  
Tianyuan Xue ◽  
Jason C. C. Mak ◽  
Xianshu Luo ◽  
...  
Keyword(s):  
Phased Arrays ◽  
Beam Steering ◽  
Neural Probes ◽  
Optical Phased Arrays ◽  
Free Beam

scholarly journals 2D Optical Phased Arrays for Laser Beam Steering Based on 3D Polymer Photonic Integrated Circuits

2021 ◽  
Author(s):  
Adam Raptakis ◽  
Lefteris Gounaridis ◽  
Madeleine Weigel ◽  
Moritz Kleinert ◽  
Michalis Georgiopoulos ◽  
...  
Keyword(s):  
Integrated Circuits ◽  
Phased Arrays ◽  
Photonic Integrated Circuits ◽  
Beam Steering ◽  
Beam Width ◽  
Phase Shifters ◽  
Beam Scanning ◽  
Steering Angle ◽  
Experimental Proof ◽  
Optical Phased Arrays

We propose a novel concept for the implementation of 2-dimensional (2D) optical phased arrays (OPAs) with end-fire waveguides as antenna elements (AEs), and we present its theoretical model and experimental proof. The concept is based on the use of 3-dimensional (3D) photonic integrated circuits (PICs) with multiple waveguiding layers on the PolyBoard platform. In their simplest form, the 3D PICs comprise AEs at different layers, vertical and lateral couplers for the distribution of light among the AEs, and phase shifters for the execution of the 2D beam scanning process. Using the field equivalence principle, we model the radiated field from the single-mode waveguide of the platform at 1550 nm, and we find that the expected beam width is 12.7<sup>o</sup>. We also investigate the perturbation that is induced into propagating fields inside parallel waveguides in proximity, and we conclude that waveguide spacings down to 6 µm can be safely used for development of uniform OPAs in the PolyBoard platform. For OPAs with 6 µm pitch and 4 AEs, we find that the maximum steering angle is 14.0<sup>o</sup> and the expected angular clearance, wherein the main radiation lobe is higher than any grating lobe by at least 3, 6 and 10 dB is 10.8<sup>o</sup>, 7.6<sup>o</sup> and 2.8<sup>o</sup>, respectively. Based on our simulations, we design and fabricate single- and 2-layer PICs with 1×4 and 2×4 OPAs. The lateral pitch of the OPAs ranges from 10 down to 6 µm, while the vertical pitch is 7.2 µm. We experimentally characterize these OPAs and validate the potential of the 2-layer PICs for 2D beam scanning on the azimuthal and elevation plane. The beam profiles and the main scanning parameters such as the maximum steering angle and the relative intensity between the main and the grating lobes are found in excellent agreement with our simulations.

Optimization of Element Positions in Linear Optical Phased Arrays for Broad Beam Steering Operation

2020 ◽  
Author(s):  
Bruna Souza ◽  
Ivan Aldaya ◽  
Julián Pita ◽  
Marcelo Abbade ◽  
Paulo Jarschel ◽  
...  
Keyword(s):  
Phased Arrays ◽  
Beam Steering ◽  
Broad Beam ◽  
Optical Phased Arrays ◽  
Linear Optical

Chip scale GaAs optical phased arrays for high speed beam steering

2020 ◽  
Vol 59 (27) ◽  
pp. 8310
Author(s):  
Zihao Wang ◽  
Jiali Liao ◽  
Yanling Sun ◽  
Xiang’e Han ◽  
Yang Cao ◽  
...  
Keyword(s):  
High Speed ◽  
Phased Arrays ◽  
Beam Steering ◽  
Optical Phased Arrays
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