Ultra-low-loss high-contrast gratings based spoof surface plasmonic waveguide

L Liu, Z Li, B Xu, C Gu, X Chen, H Sun… - IEEE Transactions …, 2017 - ieeexplore.ieee.org
… composed of a three-dimensional (3-D) dominolike high refractive-… So, they are totally
different waveguides. To make the whole … 7 to 12.3 GHz, which implies that a very high-efficiency …

Femtosecond laser writing low-loss waveguides in silica glass: highly symmetrical mode field and mechanism of refractive index change

D Tan, X Sun, J Qiu - Optical Materials Express, 2021 - opg.optica.org
… i = 5.19 dB) in the current study, which is different from the previous reported waveguides
fabricated in the silica and borosilicate glasses with the optimal repetition rates of 1∼1.5 MHz […

Waveguide-based augmented reality displays: perspectives and challenges

Y Ding, Q Yang, Y Li, Z Yang, Z Wang, H Liang, ST Wu - eLight, 2023 - Springer
… and challenges of optical waveguide combiners for AR displays… of different AR architectures,
and then delve into different … The advantage of using dielectric materials is their lower loss, …

Ultra-compact subwavelength-grating-assisted polarization-independent directional coupler

H Xie, J Zheng, P Xu, J Yao… - IEEE Photonics …, 2019 - ieeexplore.ieee.org
… We find that the refractive index difference between the even … also fabricated the devices
with different groove widths on the … The availability of such compact, low loss and polarization-…

A compact silicon-based polarization-independent power splitter using a three-guide directional coupler with subwavelength gratings

N Yang, J Xiao - Optics Communications, 2020 - Elsevier
different length of L 1 and L 2 , degrading the insertion loss (IL… L indicate the refractive indices
of high- and low-index regions … The SR of the device is controlled close to 1.0 extremely to …

Integrated photonic tunable basic units using dual-drive directional couplers

D Pérez-López, AM Gutierrez, E Sánchez… - Optics …, 2019 - opg.optica.org
… as well as a low loss and potentially low footprint TBU. Finally, … by more than 5 µm from
the optical waveguides in order to … are fundamentally different from the waveguide mesh …

Low-loss, low-crosstalk, and large-scale optical switch based on silicon photonics

K Suzuki, R Konoike, S Suda, H Matsuura… - Journal of Lightwave …, 2020 - opg.optica.org
… , optical switches based on integrated optical waveguides … The double-layer network [19]
that is a different version of … -∆ silica PLC [21] were attached and secured with refractive-index-…

Subwavelength Grating‐Assisted Contra‐Directional Couplers in Lithium Niobate on Insulator

X Han, Y Jiang, H Xiao, M Yuan… - Laser & Photonics …, 2023 - Wiley Online Library
… photonic waveguide platform, as it provides optical waveguides that … low refractive index of
lithium niobate introduces only a small effective … and SWG waveguides with different widths. …

Compact and low loss silicon TM-pass polarizer using a subwavelength-grating based asymmetrical directional coupler

Z Zhao, J Hao, S Wu, XS Yao - … and Micro/Nano Optics VI, 2020 - spiedigitallibrary.org
… , which causes the performance of the device to be greatly affected by … In this paper, different
from previous reported ADC type … As is seen, for the strip waveguide, the effective refractive

Comparison and analysis of phase change materials-based reconfigurable silicon photonic directional couplers

TY Teo, M Krbal, J Mistrik, J Prikryl, L Lu… - Optical Materials …, 2022 - opg.optica.org
… exploits the large refractive index change between the two … For this reason and because
Sb 2 S 3 had the lowest losses, … 3 -tuned couplers can be programmed with different coupling