Large steering range and low-loss integrated optical phased array with SiN-Si dual-layer non-uniform antenna

M Ye, Y Chen, J Li, Y Deng, J Chen, W Zhang, Y Li… - Optics …, 2023 - opg.optica.org
We propose and demonstrate a 64-channel SiN-Si dual-layer optical phased array (OPA).
By taking advantages of both SiN and Si materials, high-power handling and efficient …

[HTML][HTML] Wide-angle non-uniform optical phased array using compact and efficient antenna design

OE Elsheikh, MA Swillam - Scientific Reports, 2024 - nature.com
In the need for a more compact and efficient optical phased array with a wide steering beam
for LIDAR applications, a wide steering array with high resolution is desirable. However, in …

Non-uniform distributed silicon optical phased array for high directionality and a wide steering range

Y Du, Y Qiu, S Zheng, X Zhao, Y Dong, Q Zhong… - Applied Optics, 2024 - opg.optica.org
A non-uniform distributed silicon optical phased array (OPA) is proposed and numerically
demonstrated to realize high directionality and a wide range for beam steering. The OPA is …

Non-uniform optical phased array based on dual-adaption genetic algorithm improved by chaos sequence

Y Yuan, C Jiang, M Wu, J Zhu - Optics and Lasers in Engineering, 2024 - Elsevier
To address the issue of diminishing peak side lobe levels (PSLL) in non-uniform optical
phased array (OPA) as steering angle increases, we introduce a dual-adaption genetic …

Critical evaluation of non-uniform optical phased arrays for real-world beam-steering applications

M de Cea, RJ Ram - Optics Express, 2024 - opg.optica.org
Optical phased arrays (OPAs) are a promising technology for the realization of fast and
compact non-mechanical optical beam steering. While many experimental demonstrations …

Large effective length and high efficiency by embedding L-shaped radiating blocks in subwavelength grating slot waveguide

Z Chen, D Wang, P Liu, Z Ji, L Ma, Y Shi, L Xie… - Journal of …, 2024 - iopscience.iop.org
Integrated optical antennas featuring large effective lengths and high radiation efficiency
(RE) are essential to chip-scale light detection and ranging technology. However, there are …

128-channel optical phased array with large field of view and low main-lobe attenuation

P Ma, L Yu, Z Wang, Y Xin, P Wang… - Engineering …, 2024 - iopscience.iop.org
In this paper, a 128-channel non-uniform optical phased array is proposed. The antenna is
based on a silicon nitride waveguide with a large cross-sectional area (3 μm× 1.2 μm) and a …