Low-Loss Silicon Directional Coupler with Arbitrary Coupling Ratios for Broadband Wavelength Operation Based on Bent Waveguides

AH El-Saeed, A Elshazly, H Kobbi… - Journal of Lightwave …, 2024 - ieeexplore.ieee.org
… observed in DCs with different waveguide widths [21]. … effective refractive indices related to
bent waveguides should … of the coupler, in contrast to a highly variant coupling behavior of the …

Optical performance of hybrid metal‐insulator‐metal plasmonic waveguide for lowloss and efficient photonic integration

P Kumar, DK Singh, R Ranjan - Microwave and Optical …, 2020 - Wiley Online Library
optical waveguide structures that support largely confined … index of waveguide to move toward
the refractive index of high-index (… , the coupling lengths have been calculated for different

A hybrid-plasmonic-waveguide-based polarization-independent directional coupler

L Zhang, C Pan, D Zeng, Y Yang, Y Yang, J Ma - IEEE Access, 2020 - ieeexplore.ieee.org
waveguides for TE and TM modes is distributed in different … 28]–[31], we propose a low
loss, broadband, and polarization… exhibits different effective mode refractive indices at different

Low-loss directional coupler for the C, L and U bands based on subwavelength gratings

J Vilas, RF De Cabo, I Olivares… - IEEE Photonics …, 2023 - ieeexplore.ieee.org
refractive index engineering through geometrical design [15]… different cr , we fabricated 11
DCs with linearly increasing Np … Said DC exhibits very low excess losses of EL0.5 < −0.28 dB …

Optimization of the interlayer distance for low-loss and low-crosstalk double-layer polymer optical waveguides

F Zhang, C Deng, Y Huang, X Zhang, T Wang - Optics Express, 2023 - opg.optica.org
… for double-layer optical waveguides with different core sizes. An … The TL is exceptionally high
when d is extremely low (eg, d = … , a high exposure dose can increase the refractive index of …

Low loss waveguiding and slow light modes in coupled subwavelength silicon Mie resonators

L Ding, YF Yu, D Morits, M Yu, TYL Ang, HS Chu… - Nanoscale, 2020 - pubs.rsc.org
… can be greatly reduced by introducing a hybrid tapered coupler … for different lengths of the
nanoparticle chain waveguide. The modal refractive index of the stripe silicon waveguide with …

Weak optical modes for high-density and low-loss photonic circuits

H Nikbakht, B van Someren, M Hammer, BI Akca - APL Photonics, 2023 - pubs.aip.org
… Channels with high refractive index contrast can provide very … compact and lowloss hybrid
optical waveguides based on … shape on waveguide performance, we simulated different strip …

[HTML][HTML] On-chip beam rotators, adiabatic mode converters, and waveplates through low-loss waveguides with variable cross-sections

B Sun, F Morozko, PS Salter, S Moser, Z Pong… - Light: Science & …, 2022 - nature.com
waveguides have high refractive index contrast of 0.017, lowLow-loss-integrated optical
waveguides have indispensable roles in … Moreover, we found that the waveguides with different

Compact stereo waveguide display based on a unidirectional polarization-multiplexed metagrating in-coupler

Z Liu, C Zhang, W Zhu, Z Huang, HJ Lezec… - ACS …, 2021 - ACS Publications
Among these various approaches, optical waveguide technology … out-coupled to different
eyes, generating 3D vision for the … improved by using high refractive index dielectric material for …

[HTML][HTML] Precise mode control of laser-written waveguides for broadband, low-dispersion 3D integrated optics

Y Wang, L Zhong, KY Lau, X Han, Y Yang… - Light: Science & …, 2024 - nature.com
… the refractive index profile of 3D waveguides with high spatial … of the optical field by means
of a highly customizable spatial-… a small loss variation of less than 0.2 dB at different depths …