Deep neural network-based phase calibration in integrated optical phased arrays

JY Kim, J Kim, J Yoon, S Hong, B Neseli, N Kwon… - Scientific Reports, 2023 - nature.com
Calibrating the phase in integrated optical phased arrays (OPAs) is a crucial procedure for
addressing phase errors and achieving the desired beamforming results. In this paper, we …

Inverse-designed broadband low-loss grating coupler on thick lithium-niobate-on-insulator platform

Y Xie, M Nie, SW Huang - Applied Physics Letters, 2024 - pubs.aip.org
A grating coupler on 700-nm-thick Z-cut lithium-niobate-on-insulator platform with high
coupling efficiency, large bandwidth, and high fabrication tolerance is designed and …

[HTML][HTML] Nanoscale antenna systems: Transforming wireless communications and biomedical applications

S Akinola, L Reddy - AIMS Bioengineering, 2023 - aimspress.com
This article provides an overview of nanoscale antenna systems in wireless communications
and emerging biomedical applications. The research examines the importance of nanoscale …

Single-etched fiber-chip coupler with a metal mirror on a 220-nm silicon-on-insulator platform for perfectly vertical coupling

L Wang, J Qiu, Z Dong, Y Chen, L Wu, H Guo, J Wu - Optics Letters, 2024 - opg.optica.org
Vertical couplers play a pivotal role as essential components supporting interconnections
between fibers and photonic integrated circuits (PICs). In this study, we propose and …

Design and demonstration of high efficiency perfectly vertical grating couplers with a random structure

X Jin, J Xu, C Xue, C Guo, L Fu, M Liu, Y Shen… - Optics Letters, 2024 - opg.optica.org
Utilizing an automated optimization method, we propose a perfectly vertical grating coupler
(PVGC) characterized by random structure, superior performance, simplified fabrication …

Single-etched fiber-chip coupler with a metal mirror on 220-nm SOI platform for perfectly vertical coupling

L WANG, J QIU, Z DONG, Y CHEN, LAN WU, H GUO… - 2024 - opg.optica.org
Nanophotonic components realized on silicon-on-insulator (SOI) platforms have
demonstrated significant potential in enabling large-scale integration in the construction of …

Channel Phase-Error Initialization via Inverse Designed On-Chip Silicon Metalens

J Yoon, JY Kim, J Kim, J Park… - 2024 IEEE Silicon …, 2024 - ieeexplore.ieee.org
We propose a method for phase initialization and error correction using silicon on-chip
metalens. Leveraging inverse design techniques, we engineered on-chip metalens with …

[PDF][PDF] Fabrication-constrained inverse design and demonstration of high-performance grating couplers

X Cheng - researching.cn
A high-performance grating coupler (GC) operating at a wavelength of 1550 nm is proposed
by utilizing the adjoint-based inverse design algorithm on 220 nm silicon-on-insulator (SOI) …